Build 1.17.0

from JodaTime to java.time.

.classpath

@@ -2,29 +2,26 @@
 <classpath>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="src" path="test"/>
-	<classpathentry kind="lib" path="lib/commons-lang3-3.1.jar"/>
-	<classpathentry kind="lib" path="lib/hamcrest-core-1.3.jar"/>
-	<classpathentry kind="lib" path="lib/junit-4.11.jar" sourcepath="lib/junit-4.11-sources.jar"/>
-	<classpathentry kind="lib" path="lib/log4j-1.2.17.jar"/>
-	<classpathentry kind="lib" path="lib/slf4j-api-1.7.5.jar"/>
-	<classpathentry kind="lib" path="lib/slf4j-log4j12-1.7.5.jar"/>
-	<classpathentry kind="lib" path="lib/commons-codec-1.8.jar"/>
 	<classpathentry kind="con" path="org.eclipse.jst.j2ee.internal.module.container"/>
-	<classpathentry kind="con" path="org.eclipse.jst.server.core.container/org.eclipse.jst.server.tomcat.runtimeTarget/Apache Tomcat v7.0">
-		<attributes>
-			<attribute name="owner.project.facets" value="jst.utility"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jdk1.6.0_45">
+	<classpathentry kind="lib" path="lib/UnitTesting/hamcrest-core-1.3.jar" sourcepath="lib/UnitTesting/hamcrest-core-1.3-sources.jar"/>
+	<classpathentry kind="lib" path="lib/UnitTesting/junit-4.12.jar" sourcepath="lib/UnitTesting/junit-4.12-sources.jar"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17">
 		<attributes>
+			<attribute name="module" value="true"/>
 			<attribute name="owner.project.facets" value="java"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="lib" path="lib/mysql-jdbc-5.0.8.jar"/>
-	<classpathentry kind="lib" path="lib/joda-time-2.3.jar" sourcepath="lib/joda-time-2.3-sources.jar"/>
-	<classpathentry kind="lib" path="lib/hsqldb-2.3.0.jar"/>
-	<classpathentry kind="lib" path="lib/commons-io-2.4-sources.jar"/>
-	<classpathentry kind="lib" path="lib/commons-io-2.4.jar" sourcepath="lib/commons-io-2.4-sources.jar"/>
-	<classpathentry kind="lib" path="lib/devinsy-utils-0.3.3.jar"/>
+	<classpathentry kind="lib" path="lib/commons-io-2.16.1.jar" sourcepath="lib/commons-io-2.16.1-sources.jar"/>
+	<classpathentry kind="lib" path="lib/commons-lang3-3.13.0.jar" sourcepath="lib/commons-lang3-3.13.0-sources.jar"/>
+	<classpathentry kind="lib" path="lib/devinsy-strings-0.17.0.jar" sourcepath="lib/devinsy-strings-0.17.0-sources.zip"/>
+	<classpathentry kind="lib" path="lib/devinsy-xml-0.17.0.jar" sourcepath="lib/devinsy-xml-0.17.0-sources.zip"/>
+	<classpathentry kind="lib" path="lib/commons-codec-1.17.1.jar" sourcepath="lib/commons-codec-1.17.1-sources.jar"/>
+	<classpathentry kind="lib" path="lib/mariadb-java-client-3.4.1.jar"/>
+	<classpathentry kind="lib" path="lib/hsqldb-2.7.3.jar"/>
+	<classpathentry kind="lib" path="lib/Logs/log4j-api-2.23.1.jar"/>
+	<classpathentry kind="lib" path="lib/Logs/log4j-core-2.23.1.jar"/>
+	<classpathentry kind="lib" path="lib/Logs/log4j-slf4j2-impl-2.23.1.jar"/>
+	<classpathentry kind="lib" path="lib/Logs/slf4j-api-2.0.16.jar"/>
+	<classpathentry kind="lib" path="lib/commons-text-1.12.0.jar" sourcepath="lib/commons-text-1.12.0-sources.jar"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>

.settings/org.eclipse.core.resources.prefs

@@ -0,0 +1,2 @@
+eclipse.preferences.version=1
+encoding/<project>=UTF-8

.settings/org.eclipse.jdt.core.prefs

@@ -1,15 +1,20 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=17
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=1.6
+org.eclipse.jdt.core.compiler.compliance=17
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.source=1.6
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=17
+org.eclipse.jdt.core.formatter.align_fields_grouping_blank_lines=2147483647
 org.eclipse.jdt.core.formatter.align_type_members_on_columns=false
+org.eclipse.jdt.core.formatter.alignment_for_additive_operator=16
 org.eclipse.jdt.core.formatter.alignment_for_arguments_in_allocation_expression=16
 org.eclipse.jdt.core.formatter.alignment_for_arguments_in_annotation=0
 org.eclipse.jdt.core.formatter.alignment_for_arguments_in_enum_constant=16
@@ -17,22 +22,30 @@ org.eclipse.jdt.core.formatter.alignment_for_arguments_in_explicit_constructor_c
 org.eclipse.jdt.core.formatter.alignment_for_arguments_in_method_invocation=16
 org.eclipse.jdt.core.formatter.alignment_for_arguments_in_qualified_allocation_expression=16
 org.eclipse.jdt.core.formatter.alignment_for_assignment=0
-org.eclipse.jdt.core.formatter.alignment_for_binary_expression=16
+org.eclipse.jdt.core.formatter.alignment_for_bitwise_operator=16
 org.eclipse.jdt.core.formatter.alignment_for_compact_if=16
 org.eclipse.jdt.core.formatter.alignment_for_conditional_expression=80
 org.eclipse.jdt.core.formatter.alignment_for_enum_constants=49
 org.eclipse.jdt.core.formatter.alignment_for_expressions_in_array_initializer=16
+org.eclipse.jdt.core.formatter.alignment_for_expressions_in_for_loop_header=0
+org.eclipse.jdt.core.formatter.alignment_for_logical_operator=16
 org.eclipse.jdt.core.formatter.alignment_for_method_declaration=0
+org.eclipse.jdt.core.formatter.alignment_for_module_statements=16
 org.eclipse.jdt.core.formatter.alignment_for_multiple_fields=16
+org.eclipse.jdt.core.formatter.alignment_for_multiplicative_operator=16
+org.eclipse.jdt.core.formatter.alignment_for_parameterized_type_references=0
 org.eclipse.jdt.core.formatter.alignment_for_parameters_in_constructor_declaration=16
 org.eclipse.jdt.core.formatter.alignment_for_parameters_in_method_declaration=16
 org.eclipse.jdt.core.formatter.alignment_for_resources_in_try=80
 org.eclipse.jdt.core.formatter.alignment_for_selector_in_method_invocation=16
+org.eclipse.jdt.core.formatter.alignment_for_string_concatenation=16
 org.eclipse.jdt.core.formatter.alignment_for_superclass_in_type_declaration=16
 org.eclipse.jdt.core.formatter.alignment_for_superinterfaces_in_enum_declaration=16
 org.eclipse.jdt.core.formatter.alignment_for_superinterfaces_in_type_declaration=16
 org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_constructor_declaration=16
 org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_method_declaration=16
+org.eclipse.jdt.core.formatter.alignment_for_type_arguments=0
+org.eclipse.jdt.core.formatter.alignment_for_type_parameters=0
 org.eclipse.jdt.core.formatter.alignment_for_union_type_in_multicatch=16
 org.eclipse.jdt.core.formatter.blank_lines_after_imports=1
 org.eclipse.jdt.core.formatter.blank_lines_after_package=1
@@ -53,11 +66,13 @@ org.eclipse.jdt.core.formatter.brace_position_for_block_in_case=next_line
 org.eclipse.jdt.core.formatter.brace_position_for_constructor_declaration=next_line
 org.eclipse.jdt.core.formatter.brace_position_for_enum_constant=next_line
 org.eclipse.jdt.core.formatter.brace_position_for_enum_declaration=next_line
+org.eclipse.jdt.core.formatter.brace_position_for_lambda_body=end_of_line
 org.eclipse.jdt.core.formatter.brace_position_for_method_declaration=next_line
 org.eclipse.jdt.core.formatter.brace_position_for_switch=next_line
 org.eclipse.jdt.core.formatter.brace_position_for_type_declaration=next_line
 org.eclipse.jdt.core.formatter.comment.clear_blank_lines_in_block_comment=false
 org.eclipse.jdt.core.formatter.comment.clear_blank_lines_in_javadoc_comment=false
+org.eclipse.jdt.core.formatter.comment.count_line_length_from_starting_position=false
 org.eclipse.jdt.core.formatter.comment.format_block_comments=false
 org.eclipse.jdt.core.formatter.comment.format_header=false
 org.eclipse.jdt.core.formatter.comment.format_html=true
@@ -90,6 +105,7 @@ org.eclipse.jdt.core.formatter.indent_statements_compare_to_body=true
 org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_cases=true
 org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_switch=true
 org.eclipse.jdt.core.formatter.indentation.size=4
+org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_enum_constant=insert
 org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_field=insert
 org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_local_variable=insert
 org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_method=insert
@@ -98,6 +114,7 @@ org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_parameter=do
 org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_type=insert
 org.eclipse.jdt.core.formatter.insert_new_line_after_label=do not insert
 org.eclipse.jdt.core.formatter.insert_new_line_after_opening_brace_in_array_initializer=do not insert
+org.eclipse.jdt.core.formatter.insert_new_line_after_type_annotation=do not insert
 org.eclipse.jdt.core.formatter.insert_new_line_at_end_of_file_if_missing=do not insert
 org.eclipse.jdt.core.formatter.insert_new_line_before_catch_in_try_statement=insert
 org.eclipse.jdt.core.formatter.insert_new_line_before_closing_brace_in_array_initializer=do not insert
@@ -111,11 +128,12 @@ org.eclipse.jdt.core.formatter.insert_new_line_in_empty_enum_constant=insert
 org.eclipse.jdt.core.formatter.insert_new_line_in_empty_enum_declaration=insert
 org.eclipse.jdt.core.formatter.insert_new_line_in_empty_method_body=insert
 org.eclipse.jdt.core.formatter.insert_new_line_in_empty_type_declaration=insert
+org.eclipse.jdt.core.formatter.insert_space_after_additive_operator=insert
 org.eclipse.jdt.core.formatter.insert_space_after_and_in_type_parameter=insert
 org.eclipse.jdt.core.formatter.insert_space_after_assignment_operator=insert
 org.eclipse.jdt.core.formatter.insert_space_after_at_in_annotation=do not insert
 org.eclipse.jdt.core.formatter.insert_space_after_at_in_annotation_type_declaration=do not insert
-org.eclipse.jdt.core.formatter.insert_space_after_binary_operator=insert
+org.eclipse.jdt.core.formatter.insert_space_after_bitwise_operator=insert
 org.eclipse.jdt.core.formatter.insert_space_after_closing_angle_bracket_in_type_arguments=insert
 org.eclipse.jdt.core.formatter.insert_space_after_closing_angle_bracket_in_type_parameters=insert
 org.eclipse.jdt.core.formatter.insert_space_after_closing_brace_in_block=insert
@@ -145,6 +163,9 @@ org.eclipse.jdt.core.formatter.insert_space_after_comma_in_superinterfaces=inser
 org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_arguments=insert
 org.eclipse.jdt.core.formatter.insert_space_after_comma_in_type_parameters=insert
 org.eclipse.jdt.core.formatter.insert_space_after_ellipsis=insert
+org.eclipse.jdt.core.formatter.insert_space_after_lambda_arrow=insert
+org.eclipse.jdt.core.formatter.insert_space_after_logical_operator=insert
+org.eclipse.jdt.core.formatter.insert_space_after_multiplicative_operator=insert
 org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_parameterized_type_reference=do not insert
 org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_arguments=do not insert
 org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_parameters=do not insert
@@ -169,13 +190,17 @@ org.eclipse.jdt.core.formatter.insert_space_after_postfix_operator=do not insert
 org.eclipse.jdt.core.formatter.insert_space_after_prefix_operator=do not insert
 org.eclipse.jdt.core.formatter.insert_space_after_question_in_conditional=insert
 org.eclipse.jdt.core.formatter.insert_space_after_question_in_wildcard=do not insert
+org.eclipse.jdt.core.formatter.insert_space_after_relational_operator=insert
 org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_for=insert
 org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_try_resources=insert
+org.eclipse.jdt.core.formatter.insert_space_after_shift_operator=insert
+org.eclipse.jdt.core.formatter.insert_space_after_string_concatenation=insert
 org.eclipse.jdt.core.formatter.insert_space_after_unary_operator=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_additive_operator=insert
 org.eclipse.jdt.core.formatter.insert_space_before_and_in_type_parameter=insert
 org.eclipse.jdt.core.formatter.insert_space_before_assignment_operator=insert
 org.eclipse.jdt.core.formatter.insert_space_before_at_in_annotation_type_declaration=insert
-org.eclipse.jdt.core.formatter.insert_space_before_binary_operator=insert
+org.eclipse.jdt.core.formatter.insert_space_before_bitwise_operator=insert
 org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_parameterized_type_reference=do not insert
 org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_arguments=do not insert
 org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_parameters=do not insert
@@ -222,6 +247,9 @@ org.eclipse.jdt.core.formatter.insert_space_before_comma_in_superinterfaces=do n
 org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_arguments=do not insert
 org.eclipse.jdt.core.formatter.insert_space_before_comma_in_type_parameters=do not insert
 org.eclipse.jdt.core.formatter.insert_space_before_ellipsis=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_lambda_arrow=insert
+org.eclipse.jdt.core.formatter.insert_space_before_logical_operator=insert
+org.eclipse.jdt.core.formatter.insert_space_before_multiplicative_operator=insert
 org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_parameterized_type_reference=do not insert
 org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_arguments=do not insert
 org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_parameters=do not insert
@@ -258,9 +286,12 @@ org.eclipse.jdt.core.formatter.insert_space_before_postfix_operator=do not inser
 org.eclipse.jdt.core.formatter.insert_space_before_prefix_operator=do not insert
 org.eclipse.jdt.core.formatter.insert_space_before_question_in_conditional=insert
 org.eclipse.jdt.core.formatter.insert_space_before_question_in_wildcard=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_relational_operator=insert
 org.eclipse.jdt.core.formatter.insert_space_before_semicolon=do not insert
 org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_for=do not insert
 org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_try_resources=do not insert
+org.eclipse.jdt.core.formatter.insert_space_before_shift_operator=insert
+org.eclipse.jdt.core.formatter.insert_space_before_string_concatenation=insert
 org.eclipse.jdt.core.formatter.insert_space_before_unary_operator=do not insert
 org.eclipse.jdt.core.formatter.insert_space_between_brackets_in_array_type_reference=do not insert
 org.eclipse.jdt.core.formatter.insert_space_between_empty_braces_in_array_initializer=do not insert
@@ -281,11 +312,27 @@ org.eclipse.jdt.core.formatter.never_indent_block_comments_on_first_column=false
 org.eclipse.jdt.core.formatter.never_indent_line_comments_on_first_column=false
 org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_method_body=0
 org.eclipse.jdt.core.formatter.number_of_empty_lines_to_preserve=1
+org.eclipse.jdt.core.formatter.parentheses_positions_in_annotation=common_lines
+org.eclipse.jdt.core.formatter.parentheses_positions_in_catch_clause=common_lines
+org.eclipse.jdt.core.formatter.parentheses_positions_in_enum_constant_declaration=common_lines
+org.eclipse.jdt.core.formatter.parentheses_positions_in_for_statment=common_lines
+org.eclipse.jdt.core.formatter.parentheses_positions_in_if_while_statement=common_lines
+org.eclipse.jdt.core.formatter.parentheses_positions_in_lambda_declaration=common_lines
+org.eclipse.jdt.core.formatter.parentheses_positions_in_method_delcaration=common_lines
+org.eclipse.jdt.core.formatter.parentheses_positions_in_method_invocation=common_lines
+org.eclipse.jdt.core.formatter.parentheses_positions_in_switch_statement=common_lines
+org.eclipse.jdt.core.formatter.parentheses_positions_in_try_clause=common_lines
 org.eclipse.jdt.core.formatter.put_empty_statement_on_new_line=true
 org.eclipse.jdt.core.formatter.tabulation.char=tab
 org.eclipse.jdt.core.formatter.tabulation.size=4
 org.eclipse.jdt.core.formatter.use_on_off_tags=false
 org.eclipse.jdt.core.formatter.use_tabs_only_for_leading_indentations=false
-org.eclipse.jdt.core.formatter.wrap_before_binary_operator=true
+org.eclipse.jdt.core.formatter.wrap_before_additive_operator=true
+org.eclipse.jdt.core.formatter.wrap_before_assignment_operator=false
+org.eclipse.jdt.core.formatter.wrap_before_bitwise_operator=true
+org.eclipse.jdt.core.formatter.wrap_before_conditional_operator=true
+org.eclipse.jdt.core.formatter.wrap_before_logical_operator=true
+org.eclipse.jdt.core.formatter.wrap_before_multiplicative_operator=true
 org.eclipse.jdt.core.formatter.wrap_before_or_operator_multicatch=true
+org.eclipse.jdt.core.formatter.wrap_before_string_concatenation=true
 org.eclipse.jdt.core.formatter.wrap_outer_expressions_when_nested=true

.settings/org.eclipse.jdt.ui.prefs

@@ -11,10 +11,12 @@ cleanup.always_use_blocks=true
 cleanup.always_use_parentheses_in_expressions=false
 cleanup.always_use_this_for_non_static_field_access=true
 cleanup.always_use_this_for_non_static_method_access=false
+cleanup.convert_functional_interfaces=false
 cleanup.convert_to_enhanced_for_loop=false
 cleanup.correct_indentation=false
 cleanup.format_source_code=true
 cleanup.format_source_code_changes_only=false
+cleanup.insert_inferred_type_arguments=false
 cleanup.make_local_variable_final=false
 cleanup.make_parameters_final=true
 cleanup.make_private_fields_final=false
@@ -29,6 +31,7 @@ cleanup.qualify_static_member_accesses_through_subtypes_with_declaring_class=fal
 cleanup.qualify_static_member_accesses_with_declaring_class=true
 cleanup.qualify_static_method_accesses_with_declaring_class=false
 cleanup.remove_private_constructors=true
+cleanup.remove_redundant_type_arguments=false
 cleanup.remove_trailing_whitespaces=true
 cleanup.remove_trailing_whitespaces_all=true
 cleanup.remove_trailing_whitespaces_ignore_empty=false
@@ -42,8 +45,10 @@ cleanup.remove_unused_private_methods=true
 cleanup.remove_unused_private_types=true
 cleanup.sort_members=true
 cleanup.sort_members_all=false
+cleanup.use_anonymous_class_creation=false
 cleanup.use_blocks=true
 cleanup.use_blocks_only_for_return_and_throw=false
+cleanup.use_lambda=true
 cleanup.use_parentheses_in_expressions=false
 cleanup.use_this_for_non_static_field_access=true
 cleanup.use_this_for_non_static_field_access_only_if_necessary=false
@@ -54,7 +59,9 @@ cleanup_settings_version=2
 eclipse.preferences.version=1
 editor_save_participant_org.eclipse.jdt.ui.postsavelistener.cleanup=true
 formatter_profile=_SikevaDB
-formatter_settings_version=12
+formatter_settings_version=13
+jautodoc.cleanup.add_header=false
+jautodoc.cleanup.replace_header=false
 sp_cleanup.add_default_serial_version_id=true
 sp_cleanup.add_generated_serial_version_id=false
 sp_cleanup.add_missing_annotations=true

.settings/org.eclipse.wst.common.project.facet.core.xml

@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <faceted-project>
-  <runtime name="Apache Tomcat v7.0"/>
   <fixed facet="java"/>
   <fixed facet="jst.utility"/>
-  <installed facet="java" version="1.6"/>
   <installed facet="jst.utility" version="1.0"/>
+  <installed facet="java" version="17"/>
 </faceted-project>

README.md

@@ -0,0 +1,38 @@
+# Welcome
+
+SikevaDB is a Simple KEy VAlue DataBase.
+
+Features:
+* double key value
+* single session only
+* connector to file persistence
+* connector to SQL persistence
+
+Why build a single session database? Because, in so many cases, I need a single session only in my application.
+
+Actually, the following backends are supported:
+* file system
+* MySQL Database
+* HSQL Database
+
+# LICENSE
+
+SikevaDB is released under the GNU AGPL license. Enjoy!
+
+# AUTHOR
+
+Christian Pierre MOMON <christian.momon@devinsy.fr>
+
+# Developer install
+
+TODO
+
+## Unit test environment
+For unit tests, install the TestNG: 
+* https://marketplace.eclipse.org/content/testng-eclipse
+* Eclipse menu > Help > Eclipse Marketplace > Find "TestNG" > TestNG for Eclipse: Install button
+
+# LOGO
+Author: Christian Pierre MOMON <christian.momon@devinsy.fr>
+License: Creative Commons BY-ND-SA
+Made with: Image from LibreOffice

build.num

@@ -1,3 +1,3 @@
 #Build Number for ANT. Do not edit!
-#Sat Feb 08 16:31:19 CET 2014
-build.number=0
+#Fri Aug 23 12:19:51 CEST 2024
+build.number=1

build.properties

@@ -1,3 +1,3 @@
 product.name=sikevadb
 product.revision.major=1
-product.revision.minor=0
+product.revision.minor=17

lib/README

@@ -1,9 +1,20 @@
 Description of used libraries:
-- commons-codec: digest tools
-- commons-lang: useful tools (StringUtils...)
-- hamcrest-core: required by junit
-- hsqldb: SQL Database  for unit test.
-- junit: unit tests API
-- log4j: log API
-- slf4j-api: facade log API
-- slf4j-log4j12: adaptation layer between slf4j and log4j
+
+- Logs/
+    - log4j             log API
+    - slf4j-api         facade log API
+    - slf4j-log4j12     adaptation layer between slf4j and log4j
+    
+- UnitTesting/
+    - hamcrest-core     required by junit
+    - hsqldb            SQL Database  for unit test.
+    - junit             unit tests API
+
+- other:
+    - commons-codec     digest tools
+    - commons-io		
+    - commons-lang      useful tools (StringUtils...)
+	- devinsy-strings
+	- devinsy-xml
+	- hsqldb
+	- mysql-jdbc

log4j.properties

@@ -0,0 +1,12 @@
+# Log configuration 
+# #################
+
+# priority setting: DEBUG < INFO < WARN < ERROR
+log4j.rootLogger                = DEBUG, console
+
+log4j.logger.fr.devinsy.util.xml                 = INFO
+
+#--
+log4j.appender.console                           = org.apache.log4j.ConsoleAppender
+log4j.appender.console.layout                    = org.apache.log4j.PatternLayout
+log4j.appender.console.layout.ConversionPattern  = %d{ISO8601} - SikevaDB [%-5p] %34.34c.%25M - %m%n

src/fr/devinsy/sikevadb/SikevaDBLauncher.java

@@ -1,5 +1,5 @@
-/**
- * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
+/*
+ * Copyright (C) 2013-2024 Christian Pierre MOMON <christian.momon@devinsy.fr>
  * 
  * This file is part of SikevaDB, simple key value database.
  * 
@@ -20,32 +20,34 @@ package fr.devinsy.sikevadb;
 
 import java.io.File;
 
-import org.apache.log4j.BasicConfigurator;
-import org.apache.log4j.PropertyConfigurator;
+import org.apache.commons.lang3.ArrayUtils;
+import org.apache.logging.log4j.core.config.Configurator;
+import org.apache.logging.log4j.core.config.DefaultConfiguration;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import fr.devinsy.sikevadb.cli.SikevaCLI;
+import fr.devinsy.sikevadb.cli.SikevaDBCLI;
+import fr.devinsy.sikevadb.demo.SikevaDBDemo;
 
 /**
- * This class Siba stands for Simple Backup. This is the main class.
- * 
- * 
+ * The Class SikevaDBLauncher.
  */
 public final class SikevaDBLauncher
 {
 	private static Logger logger = LoggerFactory.getLogger(SikevaDBLauncher.class);
 
 	/**
-     *
-     */
+	 * Instantiates a new SikevaDB launcher.
+	 */
 	private SikevaDBLauncher()
 	{
 	}
 
 	/**
+	 * The main method.
 	 * 
 	 * @param args
+	 *            the arguments
 	 */
 	public static void main(final String[] args)
 	{
@@ -53,13 +55,13 @@ public final class SikevaDBLauncher
 		File loggerConfig = new File("log4j.properties");
 		if (loggerConfig.exists())
 		{
-			PropertyConfigurator.configure(loggerConfig.getAbsolutePath());
+			Configurator.initialize(null, loggerConfig.getAbsolutePath());
 			logger.info("Dedicated log configuration done.");
 			logger.info("Configuration file was found in [{}].", loggerConfig.getAbsoluteFile());
 		}
 		else
 		{
-			BasicConfigurator.configure();
+			Configurator.initialize(new DefaultConfiguration());
 			logger.info("Basic log configuration done.");
 			logger.info("Configuration file was not found in [{}].", loggerConfig.getAbsoluteFile());
 		}
@@ -70,9 +72,13 @@ public final class SikevaDBLauncher
 			// TODO
 			// SikevaGUI.run();
 		}
+		else if (ArrayUtils.contains(args, "-demo"))
+		{
+			SikevaDBDemo.run(args);
+		}
 		else
 		{
-			SikevaCLI.run(args);
+			SikevaDBCLI.run(args);
 		}
 	}
 }

src/fr/devinsy/sikevadb/cli/SikevaDBCLI.java

@@ -1,5 +1,5 @@
-/**
- * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
+/*
+ * Copyright (C) 2013-2024 Christian Pierre MOMON <christian.momon@devinsy.fr>
  * 
  * This file is part of SikevaDB, simple key value database.
  * 
@@ -22,28 +22,28 @@ package fr.devinsy.sikevadb.cli;
 import java.io.File;
 
 import org.apache.commons.lang3.StringUtils;
-import org.apache.log4j.BasicConfigurator;
-import org.apache.log4j.PropertyConfigurator;
+import org.apache.logging.log4j.core.config.Configurator;
+import org.apache.logging.log4j.core.config.DefaultConfiguration;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import utils.BuildInformation;
 import fr.devinsy.sikevadb.core.SikevaDBException;
-import fr.devinsy.util.strings.StringList;
+import fr.devinsy.strings.StringList;
+import utils.BuildInformation;
 
 /**
- * This class manage a Command Line Interface for SikevaDB.
- * 
+ * The Class <code>SikevaDBCLI</code> manages a Command Line Interface for
+ * SikevaDB.
  * 
  */
-public final class SikevaCLI
+public final class SikevaDBCLI
 {
-	private static Logger logger = LoggerFactory.getLogger(SikevaCLI.class);
+	private static Logger logger = LoggerFactory.getLogger(SikevaDBCLI.class);
 
 	/**
-     *
-     */
-	private SikevaCLI()
+	 * Instantiates a new SikevaDBCLI.
+	 */
+	private SikevaDBCLI()
 	{
 	}
 
@@ -65,8 +65,10 @@ public final class SikevaCLI
 	}
 
 	/**
+	 * The main method.
 	 * 
 	 * @param args
+	 *            the arguments
 	 */
 	public static void main(final String[] args)
 	{
@@ -74,19 +76,19 @@ public final class SikevaCLI
 		File loggerConfig = new File("log4j.properties");
 		if (loggerConfig.exists())
 		{
-			PropertyConfigurator.configure(loggerConfig.getAbsolutePath());
+			Configurator.initialize(null, loggerConfig.getAbsolutePath());
 			logger.info("Dedicated log configuration done.");
 			logger.info("Configuration file was found in [{}].", loggerConfig.getAbsoluteFile());
 		}
 		else
 		{
-			BasicConfigurator.configure();
+			Configurator.initialize(new DefaultConfiguration());
 			logger.info("Basic log configuration done.");
 			logger.info("Configuration file was not found in [{}].", loggerConfig.getAbsoluteFile());
 		}
 
 		// Run.
-		SikevaCLI.run(args);
+		SikevaDBCLI.run(args);
 	}
 
 	/**
@@ -158,7 +160,7 @@ public final class SikevaCLI
 		}
 		catch (SikevaDBException exception)
 		{
-			System.err.println("SibaException = " + exception.getMessage());
+			System.err.println("SikevaDBException = " + exception.getMessage());
 			logger.error(exception.getMessage(), exception);
 			help();
 		}

src/fr/devinsy/sikevadb/cli/SikevaDBCLIException.java

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
  * 
  * This file is part of SikevaDB, simple key value database.
@@ -18,45 +18,54 @@
  */
 package fr.devinsy.sikevadb.cli;
 
+import fr.devinsy.sikevadb.core.SikevaDBException;
+
 /**
- * 
+ * The Class SikevaDBCLIException.
  */
-public class SikevaCLIException extends Exception
+public class SikevaDBCLIException extends SikevaDBException
 {
 	private static final long serialVersionUID = 2986878456227891377L;
 
 	/**
-	 *
+	 * Instantiates a new SikevaDBCLI exception.
 	 */
-	public SikevaCLIException()
+	public SikevaDBCLIException()
 	{
 		super();
 	}
 
 	/**
+	 * Instantiates a new SikevaDBCLI exception.
 	 * 
 	 * @param message
+	 *            the message
 	 */
-	public SikevaCLIException(final String message)
+	public SikevaDBCLIException(final String message)
 	{
 		super(message);
 	}
 
 	/**
+	 * Instantiates a new SikevaDBCLI exception.
 	 * 
 	 * @param message
+	 *            the message
 	 * @param cause
+	 *            the cause
 	 */
-	public SikevaCLIException(final String message, final Throwable cause)
+	public SikevaDBCLIException(final String message, final Throwable cause)
 	{
 		super(message, cause);
 	}
 
 	/**
+	 * Instantiates a new SikevaDBCLI exception.
 	 * 
 	 * @param cause
+	 *            the cause
 	 */
-	public SikevaCLIException(final Throwable cause)
+	public SikevaDBCLIException(final Throwable cause)
 	{
 		super(cause);
 	}

src/fr/devinsy/sikevadb/core/Archiver.java

@@ -1,5 +1,5 @@
-/**
- * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
+/*
+ * Copyright (C) 2013-2024 Christian Pierre MOMON <christian.momon@devinsy.fr>
  * 
  * This file is part of SikevaDB, simple key value database.
  * 
@@ -18,72 +18,61 @@
  */
 package fr.devinsy.sikevadb.core;
 
-import fr.devinsy.util.strings.StringList;
-
 /**
- * 
- * 
- * @author Christian Pierre MOMON
+ * The Interface Archiver.
  */
 public interface Archiver
 {
-	public void clear() throws SikevaDBException;
+	public enum Status
+	{
+		ACTIVATED,
+		SUSPENDED
+	}
 
-	public void close() throws SikevaDBException;
+	/**
+	 * Activate.
+	 */
+	void activate();
 
-	public long countOfElements() throws SikevaDBException;
+	/**
+	 * Archive.
+	 *
+	 * @param element
+	 *            the element
+	 * @throws SikevaDBException
+	 *             the sikeva DB exception
+	 */
+	void archive(Element element) throws SikevaDBException;
 
-	public long countOfElements(String key) throws SikevaDBException;
+	/**
+	 * Clear.
+	 *
+	 * @throws SikevaDBException
+	 *             the sikeva DB exception
+	 */
+	void clear() throws SikevaDBException;
 
-	public long countOfElements(String key, String subkey) throws SikevaDBException;
+	/**
+	 * Close.
+	 */
+	void close();
 
-	public Element getElement(String key) throws SikevaDBException;
+	/**
+	 * Checks if is activated.
+	 *
+	 * @return true, if is activated
+	 */
+	boolean isActivated();
 
-	public Element getElement(String key, String subkey) throws SikevaDBException;
+	/**
+	 * Checks if is suspended.
+	 *
+	 * @return true, if is suspended
+	 */
+	boolean isSuspended();
 
-	public Elements getElements() throws SikevaDBException;
-
-	public Elements getElements(String key) throws SikevaDBException;
-
-	public StringList getKeys() throws SikevaDBException;
-
-	public StringList getSubkeys(String key) throws SikevaDBException;
-
-	public String getValue(String key) throws SikevaDBException;
-
-	public String getValue(String key, String subkey) throws SikevaDBException;
-
-	public StringList getValues(String key) throws SikevaDBException;
-
-	public boolean isClosed();
-
-	public boolean isOpened();
-
-	public long memorySize() throws SikevaDBException;
-
-	public long memorySize(String key) throws SikevaDBException;
-
-	public long memorySize(String key, String subkey) throws SikevaDBException;
-
-	void open() throws SikevaDBException;
-
-	void put(Element element) throws SikevaDBException;
-
-	void put(String key, String value) throws SikevaDBException;
-
-	void put(String key, String subkey, String value) throws SikevaDBException;
-
-	void remove(final String key) throws SikevaDBException;
-
-	void remove(final String key, final String subkey) throws SikevaDBException;
-
-	void removeMany(final String key, final String... subkeys) throws SikevaDBException;
-
-	void renameKey(final String oldKey, final String newKey) throws SikevaDBException;
-
-	void renameSubKey(final String key, final String oldSubKey, final String newSubKey) throws SikevaDBException;
-
-	void replaceInValue(final String key, final String... tokens) throws SikevaDBException;
-
-	void replaceInValues(final String key, final String... tokens) throws SikevaDBException;
+	/**
+	 * Suspend.
+	 */
+	void suspend();
 }

src/fr/devinsy/sikevadb/core/ClosedDatabaseException.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2018-2024 Christian Pierre MOMON <christian.momon@devinsy.fr>
+ * 
+ * This file is part of SikevaDB, simple key value database.
+ * 
+ * SikevaDB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * SikevaDB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with SikevaDB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package fr.devinsy.sikevadb.core;
+
+/**
+ * The Class ClosedDatabaseException.
+ */
+public class ClosedDatabaseException extends SikevaDBException
+{
+	private static final long serialVersionUID = 8364599416669077052L;
+
+	/**
+	 * Instantiates a new closed database exception.
+	 */
+	public ClosedDatabaseException()
+	{
+		super("Invalid database status for this operation: closed.");
+	}
+
+	/**
+	 * Instantiates a new closed database exception.
+	 *
+	 * @param message
+	 *            the message
+	 */
+	public ClosedDatabaseException(final String message)
+	{
+		super(message);
+	}
+
+	/**
+	 * Instantiates a new closed database exception.
+	 *
+	 * @param message
+	 *            the message
+	 * @param cause
+	 *            the cause
+	 */
+	public ClosedDatabaseException(final String message, final Throwable cause)
+	{
+		super(message, cause);
+	}
+
+	/**
+	 * Instantiates a new closed database exception.
+	 *
+	 * @param cause
+	 *            the cause
+	 */
+	public ClosedDatabaseException(final Throwable cause)
+	{
+		super(cause);
+	}
+}

src/fr/devinsy/sikevadb/core/Element.java

@@ -1,5 +1,5 @@
-/**
- * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
+/*
+ * Copyright (C) 2013-2018 Christian Pierre MOMON <christian.momon@devinsy.fr>
  * 
  * This file is part of SikevaDB, simple key value database.
  * 
@@ -18,11 +18,12 @@
  */
 package fr.devinsy.sikevadb.core;
 
+import java.time.LocalDateTime;
+
 import org.apache.commons.codec.digest.DigestUtils;
-import org.joda.time.DateTime;
 
 /**
- * 
+ * The Class Element.
  * 
  * @author Christian Pierre MOMON
  */
@@ -31,10 +32,10 @@ public class Element
 	public static final long NO_ID = -1;
 
 	private long id;
-	private DateTime creationDate;
-	private DateTime editionDate;
+	private LocalDateTime creationDate;
+	private LocalDateTime editionDate;
 	/* archiveDate field is reserved for journalizer. */
-	private DateTime archiveDate;
+	private LocalDateTime archiveDate;
 	private String key;
 	private String subkey;
 	private long size;
@@ -42,9 +43,7 @@ public class Element
 	private String value;
 
 	/**
-	 * 
-	 * @param key
-	 * @param value
+	 * Instantiates a new element.
 	 */
 	public Element()
 	{
@@ -52,9 +51,14 @@ public class Element
 	}
 
 	/**
+	 * Instantiates a new element.
 	 * 
 	 * @param key
+	 *            the key
+	 * @param subkey
+	 *            the subkey
 	 * @param value
+	 *            the value
 	 */
 	public Element(final String key, final String subkey, final String value)
 	{
@@ -65,106 +69,207 @@ public class Element
 	}
 
 	/**
-	 * 
+	 * Archive.
 	 */
 	public void archive()
 	{
-		this.archiveDate = DateTime.now();
+		this.archiveDate = LocalDateTime.now();
 	}
 
-	public DateTime getArchiveDate()
+	/**
+	 * Gets the archive date.
+	 * 
+	 * @return the archive date
+	 */
+	public LocalDateTime getArchiveDate()
 	{
 		return this.archiveDate;
 	}
 
-	public DateTime getCreationDate()
+	/**
+	 * Gets the creation date.
+	 * 
+	 * @return the creation date
+	 */
+	public LocalDateTime getCreationDate()
 	{
 		return this.creationDate;
 	}
 
+	/**
+	 * Gets the digest.
+	 * 
+	 * @return the digest
+	 */
 	public String getDigest()
 	{
 		return this.digest;
 	}
 
-	public DateTime getEditionDate()
+	/**
+	 * Gets the edition date.
+	 * 
+	 * @return the edition date
+	 */
+	public LocalDateTime getEditionDate()
 	{
 		return this.editionDate;
 	}
 
+	/**
+	 * Gets the id.
+	 * 
+	 * @return the id
+	 */
 	public long getId()
 	{
 		return this.id;
 	}
 
+	/**
+	 * Gets the key.
+	 * 
+	 * @return the key
+	 */
 	public String getKey()
 	{
 		return this.key;
 	}
 
+	/**
+	 * Gets the size.
+	 * 
+	 * @return the size
+	 */
 	public long getSize()
 	{
 		return this.size;
 	}
 
+	/**
+	 * Gets the subkey.
+	 * 
+	 * @return the subkey
+	 */
 	public String getSubkey()
 	{
 		return this.subkey;
 	}
 
+	/**
+	 * Gets the value.
+	 * 
+	 * @return the value
+	 */
 	public String getValue()
 	{
 		return this.value;
 	}
 
-	public void setArchiveDate(final DateTime date)
+	/**
+	 * Sets the archive date.
+	 * 
+	 * @param date
+	 *            the new archive date
+	 */
+	public void setArchiveDate(final LocalDateTime date)
 	{
 		this.archiveDate = date;
 	}
 
-	public void setCreationDate(final DateTime date)
+	/**
+	 * Sets the creation date.
+	 * 
+	 * @param date
+	 *            the new creation date
+	 */
+	public void setCreationDate(final LocalDateTime date)
 	{
 		this.creationDate = date;
 	}
 
+	/**
+	 * Sets the digest.
+	 * 
+	 * @param digest
+	 *            the new digest
+	 */
 	public void setDigest(final String digest)
 	{
 		this.digest = digest;
 	}
 
-	public void setEditionDate(final DateTime date)
+	/**
+	 * Sets the edition date.
+	 * 
+	 * @param date
+	 *            the new edition date
+	 */
+	public void setEditionDate(final LocalDateTime date)
 	{
 		this.editionDate = date;
 	}
 
+	/**
+	 * Sets the id.
+	 * 
+	 * @param id
+	 *            the new id
+	 */
 	public void setId(final long id)
 	{
 		this.id = id;
 	}
 
+	/**
+	 * Sets the key.
+	 * 
+	 * @param key
+	 *            the new key
+	 */
 	public void setKey(final String key)
 	{
 		this.key = key;
 	}
 
+	/**
+	 * Sets the size.
+	 * 
+	 * @param size
+	 *            the new size
+	 */
 	public void setSize(final long size)
 	{
 		this.size = size;
 	}
 
+	/**
+	 * Sets the subkey.
+	 * 
+	 * @param subkey
+	 *            the new subkey
+	 */
 	public void setSubkey(final String subkey)
 	{
 		this.subkey = subkey;
 	}
 
+	/**
+	 * Sets the value.
+	 * 
+	 * @param value
+	 *            the new value
+	 */
 	public void setValue(final String value)
 	{
 		this.value = value;
 	}
 
 	/**
+	 * Update.
 	 * 
 	 * @param value
+	 *            the value
 	 */
 	public void update(final String value)
 	{
@@ -172,7 +277,7 @@ public class Element
 		setValue(value);
 
 		//
-		this.editionDate = DateTime.now();
+		this.editionDate = LocalDateTime.now();
 
 		//
 		if (value == null)

src/fr/devinsy/sikevadb/core/Elements.java

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
  * 
  * This file is part of SikevaDB, simple key value database.
@@ -21,16 +21,16 @@ package fr.devinsy.sikevadb.core;
 import java.util.ArrayList;
 
 /**
+ * The Class Elements.
  * 
- * 
- * @author Christian Pierre MOMON
+ * @author Christian Pierre MOMON (christian.momon@devinsy.fr)
  */
 public class Elements extends ArrayList<Element>
 {
 	private static final long serialVersionUID = 6298920093179395791L;
 
 	/**
-	 * 
+	 * Instantiates a new elements.
 	 */
 	public Elements()
 	{
@@ -38,7 +38,10 @@ public class Elements extends ArrayList<Element>
 	}
 
 	/**
+	 * Instantiates a new elements.
 	 * 
+	 * @param initialCapacity
+	 *            the initial capacity
 	 */
 	public Elements(final int initialCapacity)
 	{

src/fr/devinsy/sikevadb/core/OpenedDatabaseException.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2018-2024 Christian Pierre MOMON <christian.momon@devinsy.fr>
+ * 
+ * This file is part of SikevaDB, simple key value database.
+ * 
+ * SikevaDB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * SikevaDB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with SikevaDB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package fr.devinsy.sikevadb.core;
+
+/**
+ * The Class OpenedDatabaseException.
+ */
+public class OpenedDatabaseException extends SikevaDBException
+{
+	private static final long serialVersionUID = 8364599416669077052L;
+
+	/**
+	 * Instantiates a new opened database exception.
+	 */
+	public OpenedDatabaseException()
+	{
+		super("Invalid database status for this operation: opened.");
+	}
+
+	/**
+	 * Instantiates a new opened database exception.
+	 *
+	 * @param message
+	 *            the message
+	 */
+	public OpenedDatabaseException(final String message)
+	{
+		super(message);
+	}
+
+	/**
+	 * Instantiates a new opened database exception.
+	 *
+	 * @param message
+	 *            the message
+	 * @param cause
+	 *            the cause
+	 */
+	public OpenedDatabaseException(final String message, final Throwable cause)
+	{
+		super(message, cause);
+	}
+
+	/**
+	 * Instantiates a new opened database exception.
+	 *
+	 * @param cause
+	 *            the cause
+	 */
+	public OpenedDatabaseException(final Throwable cause)
+	{
+		super(cause);
+	}
+}

src/fr/devinsy/sikevadb/core/SikevaDB.java

@@ -1,5 +1,5 @@
-/**
- * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
+/*
+ * Copyright (C) 2013-2024 Christian Pierre MOMON <christian.momon@devinsy.fr>
  * 
  * This file is part of SikevaDB, simple key value database.
  * 
@@ -18,76 +18,475 @@
  */
 package fr.devinsy.sikevadb.core;
 
-import fr.devinsy.util.strings.StringList;
+import fr.devinsy.strings.StringList;
 
 /**
- * 
+ * The Interface SikevaDB.
  * 
  * @author Christian Pierre MOMON
  */
 public interface SikevaDB
 {
+	/**
+	 * Archiver.
+	 *
+	 * @return the archiver
+	 * @throws SikevaDBException
+	 *             the sikeva DB exception
+	 */
+	public Archiver archiver() throws SikevaDBException;
+
+	/**
+	 * Delete all elements of current opened database.
+	 *
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public void clear() throws SikevaDBException;
 
+	/**
+	 * Close the current database session.
+	 *
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public void close() throws SikevaDBException;
 
+	/**
+	 * Count of elements in current database.
+	 *
+	 * @return the long
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public long countOfElements() throws SikevaDBException;
 
+	/**
+	 * Count of elements by key.
+	 *
+	 * @param key
+	 *            the key
+	 * @return the long
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public long countOfElements(String key) throws SikevaDBException;
 
+	/**
+	 * Count of elements by key and sub key.
+	 *
+	 * @param key
+	 *            the key
+	 * @param subkey
+	 *            the sub key
+	 * @return the long
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	public long countOfElements(String key, long subkey) throws SikevaDBException;
+
+	/**
+	 * Count of elements by key and sub key.
+	 *
+	 * @param key
+	 *            the key
+	 * @param subkey
+	 *            the subkey
+	 * @return the long
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public long countOfElements(String key, String subkey) throws SikevaDBException;
 
+	/**
+	 * Creates the database.
+	 *
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public void create() throws SikevaDBException;
 
+	/**
+	 * Delete an database element with its key.
+	 *
+	 * @param key
+	 *            the key
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	void delete(final String key) throws SikevaDBException;
+
+	/**
+	 * Delete an database element with its key and subkey.
+	 *
+	 * @param key
+	 *            the key
+	 * @param subkey
+	 *            the sub key
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	void delete(final String key, final long subkey) throws SikevaDBException;
+
+	/**
+	 * Delete an database element with its key and subkey.
+	 *
+	 * @param key
+	 *            the key
+	 * @param subkey
+	 *            the sub key
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	void delete(final String key, final String subkey) throws SikevaDBException;
+
+	/**
+	 * Delete many database elements from key and sub keys.
+	 *
+	 * @param key
+	 *            the key
+	 * @param subkeys
+	 *            the subkeys
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	void deleteMany(final String key, final String... subkeys) throws SikevaDBException;
+
+	/**
+	 * Destroy.
+	 *
+	 * @throws SikevaDBException
+	 *             the sikeva DB exception
+	 */
+	public void destroy() throws SikevaDBException;
+
+	/**
+	 * Checks if is created.
+	 *
+	 * @return true, if is created
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	public boolean exists() throws SikevaDBException;
+
+	/**
+	 * Gets an element by key.
+	 *
+	 * @param key
+	 *            the key
+	 * @return the element
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public Element getElement(String key) throws SikevaDBException;
 
+	/**
+	 * Gets an element by key and sub key.
+	 *
+	 * @param key
+	 *            the key
+	 * @param subkey
+	 *            the sub key
+	 * @return the element
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	public Element getElement(String key, long subkey) throws SikevaDBException;
+
+	/**
+	 * Gets an element by key and sub key.
+	 *
+	 * @param key
+	 *            the key
+	 * @param subkey
+	 *            the sub key
+	 * @return the element
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public Element getElement(String key, String subkey) throws SikevaDBException;
 
+	/**
+	 * Gets all elements in current database.
+	 *
+	 * @return the elements
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public Elements getElements() throws SikevaDBException;
 
+	/**
+	 * Gets all elements of a top key.
+	 *
+	 * @param key
+	 *            the key
+	 * @return the elements
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public Elements getElements(String key) throws SikevaDBException;
 
-	public fr.devinsy.util.strings.StringList getKeys() throws SikevaDBException;
-
+	/**
+	 * Gets all the sub keys of a key.
+	 *
+	 * @param key
+	 *            the key
+	 * @return the subkeys
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public StringList getSubkeys(String key) throws SikevaDBException;
 
+	/**
+	 * Gets all the top keys.
+	 *
+	 * @return the keys
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	public StringList getTopKeys() throws SikevaDBException;
+
+	/**
+	 * Gets the value of a key.
+	 *
+	 * @param key
+	 *            the key
+	 * @return the value
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public String getValue(String key) throws SikevaDBException;
 
+	/**
+	 * Gets the value of a key and a sub key.
+	 *
+	 * @param key
+	 *            the key
+	 * @param subkey
+	 *            the sub key
+	 * @return the value
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	public String getValue(String key, long subkey) throws SikevaDBException;
+
+	/**
+	 * Gets the value of a key and a sub key.
+	 *
+	 * @param key
+	 *            the key
+	 * @param subkey
+	 *            the sub key
+	 * @return the value
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public String getValue(String key, String subkey) throws SikevaDBException;
 
+	/**
+	 * Gets the values.
+	 *
+	 * @param key
+	 *            the key
+	 * @return the values
+	 * @throws SikevaDBException
+	 *             the sikeva DB exception
+	 */
 	public StringList getValues(String key) throws SikevaDBException;
 
+	/**
+	 * Checks if is archive activated.
+	 *
+	 * @return true, if is archive activated
+	 */
+	boolean isArchiveActivated();
+
+	/**
+	 * Checks if is archive suspended.
+	 *
+	 * @return true, if is archive suspended
+	 */
+	boolean isArchiveSuspended();
+
+	/**
+	 * Checks if is closed.
+	 *
+	 * @return true, if is closed
+	 */
 	public boolean isClosed();
 
-	public boolean isCreated() throws SikevaDBException;
-
+	/**
+	 * Checks if is opened.
+	 *
+	 * @return true, if is opened
+	 */
 	public boolean isOpened();
 
+	/**
+	 * Returns the memory size of the elements in database.
+	 *
+	 * @return the long
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public long memorySize() throws SikevaDBException;
 
+	/**
+	 * Returns the memory size of elements of a key.
+	 *
+	 * @param key
+	 *            the key
+	 * @return the long
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public long memorySize(String key) throws SikevaDBException;
 
+	/**
+	 * Returns the memory size of element of a key and a sub key.
+	 *
+	 * @param key
+	 *            the key
+	 * @param subkey
+	 *            the sub key
+	 * @return the long
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	public long memorySize(String key, long subkey) throws SikevaDBException;
+
+	/**
+	 * Returns the memory size of element of a key and a sub key.
+	 *
+	 * @param key
+	 *            the key
+	 * @param subkey
+	 *            the sub key
+	 * @return the long
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	public long memorySize(String key, String subkey) throws SikevaDBException;
 
+	/**
+	 * Open a database.
+	 *
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	void open() throws SikevaDBException;
 
+	/**
+	 * Put an element in database.
+	 *
+	 * @param element
+	 *            the element
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	void put(Element element) throws SikevaDBException;
 
+	/**
+	 * Put a value for a key and a sub key in current opened database.
+	 *
+	 * @param key
+	 *            the key
+	 * @param subkey
+	 *            the sub key
+	 * @param value
+	 *            the value
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	void put(String key, long subkey, String value) throws SikevaDBException;
+
+	/**
+	 * Put a value for a key in current opened database.
+	 *
+	 * @param key
+	 *            the key
+	 * @param value
+	 *            the value
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	void put(String key, String value) throws SikevaDBException;
 
+	/**
+	 * Put a value for a key and a sub key in current opened database.
+	 *
+	 * @param key
+	 *            the key
+	 * @param subkey
+	 *            the sub key
+	 * @param value
+	 *            the value
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	void put(String key, String subkey, String value) throws SikevaDBException;
 
-	void remove(final String key) throws SikevaDBException;
-
-	void remove(final String key, final String subkey) throws SikevaDBException;
-
-	void removeMany(final String key, final String... subkeys) throws SikevaDBException;
-
+	/**
+	 * Rename a key.
+	 *
+	 * @param oldKey
+	 *            the old key
+	 * @param newKey
+	 *            the new key
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	void renameKey(final String oldKey, final String newKey) throws SikevaDBException;
 
-	void renameSubKey(final String key, final String oldSubKey, final String newSubKey) throws SikevaDBException;
+	/**
+	 * Rename a sub key.
+	 *
+	 * @param key
+	 *            the key
+	 * @param oldSubKey
+	 *            the old sub key
+	 * @param newSubKey
+	 *            the new sub key
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	void renameSubkey(final String key, final long oldSubKey, final long newSubKey) throws SikevaDBException;
 
+	/**
+	 * Rename a sub key.
+	 *
+	 * @param key
+	 *            the key
+	 * @param oldSubKey
+	 *            the old sub key
+	 * @param newSubKey
+	 *            the new sub key
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	void renameSubkey(final String key, final String oldSubKey, final String newSubKey) throws SikevaDBException;
+
+	/**
+	 * Replace a substring in a value of a key.
+	 *
+	 * @param key
+	 *            the key
+	 * @param tokens
+	 *            the tokens
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	void replaceInValue(final String key, final String... tokens) throws SikevaDBException;
 
+	/**
+	 * Replace a substring in values of all sub keys of a key.
+	 *
+	 * @param key
+	 *            the key
+	 * @param tokens
+	 *            the tokens
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
 	void replaceInValues(final String key, final String... tokens) throws SikevaDBException;
 }

src/fr/devinsy/sikevadb/core/SikevaDBException.java

@@ -1,5 +1,5 @@
-/**
- * Copyright (C) 2013-2016 Christian Pierre MOMON <christian.momon@devinsy.fr>
+/*
+ * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
  * 
  * This file is part of SikevaDB, simple key value database.
  * 
@@ -19,6 +19,7 @@
 package fr.devinsy.sikevadb.core;
 
 /**
+ * The Class SikevaDBException.
  * 
  * @author Christian Pierre MOMON (christian.momon@devinsy.fr)
  */
@@ -27,7 +28,7 @@ public class SikevaDBException extends Exception
 	private static final long serialVersionUID = 8323299610751708972L;
 
 	/**
-	 * 
+	 * Instantiates a new SikevaDB exception.
 	 */
 	public SikevaDBException()
 	{
@@ -35,8 +36,10 @@ public class SikevaDBException extends Exception
 	}
 
 	/**
+	 * Instantiates a new SikevaDB exception.
 	 * 
 	 * @param message
+	 *            the message
 	 */
 	public SikevaDBException(final String message)
 	{
@@ -44,9 +47,12 @@ public class SikevaDBException extends Exception
 	}
 
 	/**
+	 * Instantiates a new SikevaDB exception.
 	 * 
 	 * @param message
+	 *            the message
 	 * @param cause
+	 *            the cause
 	 */
 	public SikevaDBException(final String message, final Throwable cause)
 	{
@@ -54,8 +60,10 @@ public class SikevaDBException extends Exception
 	}
 
 	/**
+	 * Instantiates a new SikevaDB exception.
 	 * 
 	 * @param cause
+	 *            the cause
 	 */
 	public SikevaDBException(final Throwable cause)
 	{

src/fr/devinsy/sikevadb/core/SikevaDBFactory.java

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
  * 
  * This file is part of SikevaDB, simple key value database.
@@ -24,18 +24,24 @@ import fr.devinsy.sikevadb.filetree.FileTreeSikevaDB;
 import fr.devinsy.sikevadb.sql.SQLSikevaDB;
 
 /**
- * 
+ * A factory for creating SikevaDB objects.
  * 
  * @author Christian Pierre MOMON
  */
 public class SikevaDBFactory
 {
 	/**
+	 * Gets a SikevaDB instance from its database home directory.
 	 * 
 	 * @param path
-	 * @return
+	 *            the path of the database home directory
+	 * 
+	 * @return a SikevaDB instance
+	 * 
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
 	 */
-	public static SikevaDB get(final File path)
+	public static SikevaDB get(final File path) throws SikevaDBException
 	{
 		SikevaDB result;
 
@@ -46,9 +52,15 @@ public class SikevaDBFactory
 	}
 
 	/**
+	 * Gets a SikevaDB instance from a context.
 	 * 
 	 * @param contextName
-	 * @return
+	 *            the context name
+	 * 
+	 * @return a SikevaDB instance
+	 * 
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
 	 */
 	public static SikevaDB get(final String contextName)
 	{
@@ -61,12 +73,18 @@ public class SikevaDBFactory
 	}
 
 	/**
+	 * Gets a SikevaDB instance from dabase parameters.
 	 * 
 	 * @param driverClassName
+	 *            the driver class name
 	 * @param url
+	 *            the url
 	 * @param login
+	 *            the login
 	 * @param password
-	 * @return
+	 *            the password
+	 * 
+	 * @return the SikevaDB
 	 */
 	public static SikevaDB get(final String driverClassName, final String url, final String login, final String password)
 	{

src/fr/devinsy/sikevadb/core/SikevaDBUtils.java

@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
  * 
  * This file is part of SikevaDB, simple key value database.
@@ -21,12 +21,17 @@ package fr.devinsy.sikevadb.core;
 import java.util.Date;
 
 /**
- * 
+ * The Class SikevaDBUtils.
  * 
  * @author Christian Pierre MOMON
  */
 public class SikevaDBUtils
 {
+	/**
+	 * Gets the current time in long format.
+	 * 
+	 * @return the long
+	 */
 	public static long now()
 	{
 		return new Date().getTime();

src/fr/devinsy/sikevadb/core/XMLSikevaDB.java

@@ -1,5 +1,5 @@
-/**
- * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
+/*
+ * Copyright (C) 2013-2024 Christian Pierre MOMON <christian.momon@devinsy.fr>
  * 
  * This file is part of SikevaDB, simple key value database.
  * 
@@ -19,67 +19,90 @@
 package fr.devinsy.sikevadb.core;
 
 import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
 import java.io.OutputStream;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
 
 import javax.xml.stream.XMLStreamException;
 
 import org.apache.commons.lang3.StringEscapeUtils;
-import org.joda.time.DateTime;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import fr.devinsy.util.xml.XMLBadFormatException;
-import fr.devinsy.util.xml.XMLReader;
-import fr.devinsy.util.xml.XMLTag;
-import fr.devinsy.util.xml.XMLTag.TagType;
-import fr.devinsy.util.xml.XMLWriter;
-import fr.devinsy.util.xml.XMLZipWriter;
+import fr.devinsy.xml.XMLBadFormatException;
+import fr.devinsy.xml.XMLReader;
+import fr.devinsy.xml.XMLTag;
+import fr.devinsy.xml.XMLTag.TagType;
+import fr.devinsy.xml.XMLWriter;
+import fr.devinsy.xml.XMLZipWriter;
 
 /**
- * This class represents a AccountManager File reader and writer.
- * 
- * @author TIP
+ * The Class XMLSikevaDB represents a XML persister.
  */
 public class XMLSikevaDB
 {
 	private static final Logger logger = LoggerFactory.getLogger(XMLSikevaDB.class);
 
 	/**
-	 * Saves a net in a file.
+	 * Export.
 	 *
-	 * @param file
-	 *            Target.
+	 * @param out
+	 *            the out
 	 * @param source
-	 *            Source.
-	 * 
+	 *            the source
+	 * @throws SikevaDBException
+	 *             the sikeva DB exception
+	 * @throws FileNotFoundException
+	 *             the file not found exception
 	 */
-	public static void export(final OutputStream out, final SikevaDB source) throws Exception
+	public static void export(final File out, final SikevaDB source) throws SikevaDBException, FileNotFoundException
+	{
+		export(new FileOutputStream(out), source, out.getName());
+	}
+
+	/**
+	 * Export.
+	 *
+	 * @param out
+	 *            the out
+	 * @param source
+	 *            the source
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	public static void export(final OutputStream out, final SikevaDB source) throws SikevaDBException
 	{
 		//
-		String fileName = "sikevadb-" + DateTime.now().toString("yyyy-MM-dd-HH'h'mm'mn'ss's'") + ".xml.zip";
+		String fileName = "sikevadb-" + LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd-HH'h'mm'mn'ss's'")) + ".xml.zip";
 
 		//
 		export(out, source, fileName);
 	}
 
 	/**
-	 * Saves a net in a file.
+	 * Export.
 	 *
-	 * @param file
-	 *            Target.
+	 * @param out
+	 *            the out
 	 * @param source
-	 *            Source.
-	 * 
+	 *            the source
+	 * @param fileName
+	 *            the file name
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
 	 */
-	public static void export(final OutputStream out, final SikevaDB source, final String fileName) throws Exception
+	public static void export(final OutputStream out, final SikevaDB source, final String fileName) throws SikevaDBException
 	{
 		if (out == null)
 		{
-			throw new NullPointerException("out is null.");
+			throw new IllegalArgumentException("out is null.");
 		}
 		else if (source == null)
 		{
-			throw new NullPointerException("source is null.");
+			throw new IllegalArgumentException("source is null.");
 		}
 		else if (fileName == null)
 		{
@@ -99,23 +122,39 @@ public class XMLSikevaDB
 				//
 				write(target, source);
 			}
+			catch (IOException exception)
+			{
+				throw new SikevaDBException("Problem writing element.", exception);
+			}
 			finally
 			{
 				if (target != null)
 				{
-					target.close();
+					try
+					{
+						target.close();
+					}
+					catch (IOException exception)
+					{
+						logger.warn("Problem closing stream.", exception);
+					}
 				}
 			}
 		}
 	}
 
 	/**
+	 * Import data.
 	 *
+	 * @param database
+	 *            the database
 	 * @param file
-	 * @return
+	 *            the file
 	 */
-	public static void importData(final SikevaDB database, final File file) throws Exception
+	public static void importData(final SikevaDB database, final File file)
 	{
+		// TODO
+
 		// XMLReader in = null;
 		// try {
 		// in = new XMLZipReader(file);
@@ -128,108 +167,134 @@ public class XMLSikevaDB
 	}
 
 	/**
+	 * Read element.
 	 *
-	 * @param target
 	 * @param in
-	 * @throws XMLBadFormatException
-	 * @throws XMLStreamException
-	 * @throws Exception
+	 *            the in
+	 * @return the element
+	 * @throws SikevaDBException
+	 *             the sikeva DB exception
 	 */
-	public static Element readElement(final XMLReader in) throws XMLStreamException, XMLBadFormatException
+	public static Element readElement(final XMLReader in) throws SikevaDBException
 	{
 		Element result;
 
-		//
-		XMLTag tag = in.readStartTag("element");
-
-		//
+		try
 		{
 			//
-			long id = Long.parseLong(tag.attributes().getByLabel("id").getValue());
-			String key = StringEscapeUtils.unescapeXml(in.readContentTag("key").getContent());
-			String subkey = StringEscapeUtils.unescapeXml(in.readNullableContentTag("subkey").getContent());
-			String value = StringEscapeUtils.unescapeXml(in.readContentTag("value").getContent());
-			int size = Integer.parseInt(tag.attributes().getByLabel("size").getValue());
-			String digest = in.readContentTag("digest").getContent();
-			DateTime creationDate = DateTime.parse(in.readContentTag("creation_date").getContent());
-			DateTime editionDate = DateTime.parse(in.readContentTag("edition_date").getContent());
+			XMLTag tag = in.readStartTag("element");
 
-			DateTime archiveDate;
-			String archiveDateValue = in.readNullableContentTag("archive_date").getContent();
-			if (archiveDateValue == null)
+			//
 			{
-				archiveDate = null;
-			}
-			else
-			{
-				archiveDate = DateTime.parse(archiveDateValue);
+				//
+				long id = Long.parseLong(tag.attributes().getByLabel("id").getValue());
+				String key = StringEscapeUtils.unescapeXml(in.readContentTag("key").getContent());
+				String subkey = StringEscapeUtils.unescapeXml(in.readNullableContentTag("subkey").getContent());
+				String value = StringEscapeUtils.unescapeXml(in.readContentTag("value").getContent());
+				int size = Integer.parseInt(tag.attributes().getByLabel("size").getValue());
+				String digest = in.readContentTag("digest").getContent();
+				LocalDateTime creationDate = LocalDateTime.parse(in.readContentTag("creation_date").getContent());
+				LocalDateTime editionDate = LocalDateTime.parse(in.readContentTag("edition_date").getContent());
+
+				LocalDateTime archiveDate;
+				String archiveDateValue = in.readNullableContentTag("archive_date").getContent();
+				if (archiveDateValue == null)
+				{
+					archiveDate = null;
+				}
+				else
+				{
+					archiveDate = LocalDateTime.parse(archiveDateValue);
+				}
+
+				//
+				result = new Element();
+
+				result.setId(id);
+				result.setKey(key);
+				result.setSubkey(subkey);
+				result.setValue(value);
+				result.setSize(size);
+				result.setDigest(digest);
+				result.setCreationDate(creationDate);
+				result.setEditionDate(editionDate);
+				result.setArchiveDate(archiveDate);
 			}
 
 			//
-			result = new Element();
-
-			result.setId(id);
-			result.setKey(key);
-			result.setSubkey(subkey);
-			result.setValue(value);
-			result.setSize(size);
-			result.setDigest(digest);
-			result.setCreationDate(creationDate);
-			result.setEditionDate(editionDate);
-			result.setArchiveDate(archiveDate);
+			in.readEndTag("element");
+		}
+		catch (XMLStreamException exception)
+		{
+			throw new SikevaDBException("Problem reading element.", exception);
+		}
+		catch (XMLBadFormatException exception)
+		{
+			throw new SikevaDBException("Problem reading element.", exception);
 		}
-
-		//
-		in.readEndTag("element");
 
 		//
 		return result;
 	}
 
 	/**
+	 * Read elements.
 	 *
 	 * @param target
+	 *            the target
 	 * @param in
-	 * @throws Exception
+	 *            the in
+	 * @throws SikevaDBException
+	 *             the sikeva DB exception
 	 */
-	public static void readElements(final SikevaDB target, final XMLReader in) throws Exception
+	public static void readElements(final SikevaDB target, final XMLReader in) throws SikevaDBException
 	{
-		//
-		XMLTag list = in.readListTag("elements");
-
-		//
-		if (list.getType() != TagType.EMPTY)
+		try
 		{
-			while (in.hasNextStartTag("element"))
-			{
-
-				//
-				Element element = readElement(in);
-
-				//
-				target.put(element);
-			}
+			XMLTag list = in.readListTag("elements");
 
 			//
-			in.readEndTag("elements");
+			if (list.getType() != TagType.EMPTY)
+			{
+				//
+				while (in.hasNextStartTag("element"))
+				{
+					Element element = readElement(in);
+					target.put(element);
+				}
+
+				//
+				in.readEndTag("elements");
+			}
+		}
+		catch (XMLStreamException exception)
+		{
+			throw new SikevaDBException("Problem reading element.", exception);
+		}
+		catch (XMLBadFormatException exception)
+		{
+			throw new SikevaDBException("Problem reading element.", exception);
 		}
 	}
 
 	/**
+	 * Write.
 	 * 
+	 * @param out
+	 *            the out
 	 * @param source
-	 * @return
+	 *            the source
 	 */
 	public static void write(final XMLWriter out, final Element source)
 	{
 
 		if (out == null)
 		{
-			throw new NullPointerException("out is null.");
+			throw new IllegalArgumentException("Parameter out is null.");
 		}
 		else if (source == null)
 		{
-			throw new NullPointerException("element is null.");
+			throw new IllegalArgumentException("Parameter element is null.");
 		}
 		else
 		{
@@ -269,16 +334,21 @@ public class XMLSikevaDB
 	}
 
 	/**
+	 * Write in an XML writer the elements of a database, sorting by keys and
+	 * sub keys.
 	 *
 	 * @param out
+	 *            the out
 	 * @param source
-	 * @throws Exception
+	 *            the source
+	 * @throws SikevaDBException
+	 *             the sikeva DB exception
 	 */
-	public static void write(final XMLWriter out, final SikevaDB source) throws Exception
+	public static void write(final XMLWriter out, final SikevaDB source) throws SikevaDBException
 	{
 		if (out == null)
 		{
-			throw new NullPointerException("out is null.");
+			throw new IllegalArgumentException("out is null.");
 		}
 		else if (source == null)
 		{
@@ -288,19 +358,19 @@ public class XMLSikevaDB
 		{
 			out.writeStartTag("elements");
 
-			for (String key : source.getKeys())
+			for (String topkey : source.getTopKeys().sort())
 			{
 				//
-				Elements elements = source.getElements(key);
-				for (Element element : elements)
+				Element topElement = source.getElement(topkey);
+				if (topElement != null)
 				{
-					write(out, element);
+					write(out, topElement);
 				}
 
 				//
-				for (String subkey : source.getSubkeys(key))
+				for (String subkey : source.getSubkeys(topkey).sort())
 				{
-					Element subElement = source.getElement(key, subkey);
+					Element subElement = source.getElement(topkey, subkey);
 					write(out, subElement);
 				}
 			}

src/fr/devinsy/sikevadb/demo/SikevaDBDemo.java

@@ -0,0 +1,263 @@
+/*
+ * Copyright (C) 2013-2024 Christian Pierre MOMON <christian.momon@devinsy.fr>
+ * 
+ * This file is part of SikevaDB, simple key value database.
+ * 
+ * SikevaDB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * SikevaDB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with SikevaDB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package fr.devinsy.sikevadb.demo;
+
+import java.io.File;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.logging.log4j.core.config.Configurator;
+import org.apache.logging.log4j.core.config.DefaultConfiguration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import fr.devinsy.sikevadb.core.SikevaDB;
+import fr.devinsy.sikevadb.core.SikevaDBException;
+import fr.devinsy.sikevadb.core.SikevaDBFactory;
+import fr.devinsy.strings.StringList;
+import utils.BuildInformation;
+
+/**
+ * The Class SikevaDBDemo is a demo for SikevaDB.
+ */
+public final class SikevaDBDemo
+{
+	private static Logger logger = LoggerFactory.getLogger(SikevaDBDemo.class);
+
+	/**
+	 * SikevaDBDemo class has to be not instanciated.
+	 */
+	private SikevaDBDemo()
+	{
+	}
+
+	/**
+	 * Demo.
+	 * 
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	public static void demo() throws SikevaDBException
+	{
+		SikevaDB database = null;
+		try
+		{
+			//
+			File homeDirectory = new File("/tmp/footest");
+			database = SikevaDBFactory.get(homeDirectory);
+
+			if (database.exists())
+			{
+				database.destroy();
+			}
+
+			database.create();
+			database.open();
+
+			// Single key value.
+			{
+				database.put("alpha", "alpha value");
+				database.put("bravo", "bravo value");
+				database.put("charlie", "charlie value");
+
+				String value = database.getValue("alpha");
+				if (StringUtils.equals(value, "alpha value"))
+				{
+					System.out.println("alpha is correctly stored.");
+				}
+				else
+				{
+					System.out.println("alpha is NOT correctly stored.");
+				}
+
+				//
+				database.delete("alpha");
+				if (database.getValue("alpha") == null)
+				{
+					System.out.println("alpha is correctly deleted.");
+				}
+				else
+				{
+					System.out.println("alpha is NOT correctly deleted.");
+				}
+			}
+
+			// Double key values.
+			{
+				for (int index = 0; index < 10; index++)
+				{
+					database.put("victor", index, "victor" + index);
+				}
+
+				String value = database.getValue("victor", 7);
+				if (StringUtils.equals(value, "victor7"))
+				{
+					System.out.println("victor is correctly stored.");
+				}
+				else
+				{
+					System.out.println("victor is NOT correctly stored.");
+				}
+
+				//
+				database.delete("victor", 5);
+				if (database.getValue("victor", 5) == null)
+				{
+					System.out.println("(victor, 5) is correctly deleted.");
+				}
+				else
+				{
+					System.out.println("(victor, 5) is NOT correctly deleted.");
+				}
+			}
+
+			//
+			System.out.println(String.format("Database values:\t %d elements", database.countOfElements()));
+			System.out.println(String.format("Database memory:\t %d bytes", database.memorySize()));
+
+			//
+			database.close();
+		}
+		finally
+		{
+			if ((database != null) && (database.exists()))
+			{
+				database.destroy();
+			}
+		}
+	}
+
+	/**
+	 * This method displays the CLI help.
+	 * 
+	 */
+	public static void help()
+	{
+		StringList message = new StringList();
+
+		message.append("SikevaDB Demo version ").appendln(BuildInformation.instance().version());
+		message.appendln("Usage:");
+		message.appendln("    sikevadbdemo [ -h | -help | --help ]");
+		message.appendln("    sikevadb -demo [ -h | -help | --help ]");
+
+		System.out.println(message.toString());
+	}
+
+	/**
+	 * The main method.
+	 * 
+	 * @param args
+	 *            the arguments
+	 */
+	public static void main(final String[] args)
+	{
+		// Configure log.
+		File loggerConfig = new File("log4j.properties");
+		if (loggerConfig.exists())
+		{
+			Configurator.initialize(null, loggerConfig.getAbsolutePath());
+			logger.info("Dedicated log configuration done.");
+			logger.info("Configuration file was found in [{}].", loggerConfig.getAbsoluteFile());
+		}
+		else
+		{
+			Configurator.initialize(new DefaultConfiguration());
+			logger.info("Basic log configuration done.");
+			logger.info("Configuration file was not found in [{}].", loggerConfig.getAbsoluteFile());
+		}
+
+		// Run.
+		SikevaDBDemo.run(args);
+	}
+
+	/**
+	 * 
+	 * This method launch CLI.
+	 * 
+	 * @param args
+	 *            necessary arguments
+	 */
+	public static void run(final String[] args)
+	{
+		try
+		{
+			// Set default catch.
+			Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler()
+			{
+				@Override
+				public void uncaughtException(final Thread thread, final Throwable exception)
+				{
+					String message;
+					if (exception instanceof OutOfMemoryError)
+					{
+						message = "Java ran out of memory!\n\n";
+					}
+					else
+					{
+						message = String.format("An error occured: %1s(%2s)", exception.getClass(), exception.getMessage());
+					}
+
+					logger.error("uncaughtException ", exception);
+					logger.error(message);
+					logger.info("Oups, an unexpected error occured. Please try again.");
+				}
+			});
+
+			// This part implements an automate.
+			int parameterCount = args.length;
+			if (parameterCount == 0)
+			{
+				demo();
+			}
+			else if (StringUtils.equals(args[0], "-h") || StringUtils.equals(args[0], "-help") || StringUtils.equals(args[0], "--help"))
+			{
+				help();
+			}
+			else if (StringUtils.equals(args[0], "get"))
+			{
+				switch (parameterCount)
+				{
+					case 2:
+					{
+					}
+					break;
+
+					case 3:
+					{
+					}
+					break;
+
+					default:
+						throw new SikevaDBException("Bad parameter count.");
+				}
+			}
+			else
+			{
+				System.out.println("Bad usage detected.");
+				help();
+			}
+		}
+		catch (SikevaDBException exception)
+		{
+			System.err.println("SibaException = " + exception.getMessage());
+			logger.error(exception.getMessage(), exception);
+			help();
+		}
+	}
+}

src/fr/devinsy/sikevadb/demo/SikevaDBDemoException.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
+ * 
+ * This file is part of SikevaDB, simple key value database.
+ * 
+ * SikevaDB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * SikevaDB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with SikevaDB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package fr.devinsy.sikevadb.demo;
+
+import fr.devinsy.sikevadb.core.SikevaDBException;
+
+/**
+ * The Class SikevaDBDemoException.
+ */
+public class SikevaDBDemoException extends SikevaDBException
+{
+	private static final long serialVersionUID = 1162267847144476595L;
+
+	/**
+	 * Instantiates a new SikevaDB demo exception.
+	 */
+	public SikevaDBDemoException()
+	{
+		super();
+	}
+
+	/**
+	 * Instantiates a new SikevaDB demo exception.
+	 * 
+	 * @param message
+	 *            the message
+	 */
+	public SikevaDBDemoException(final String message)
+	{
+		super(message);
+	}
+
+	/**
+	 * Instantiates a new SikevaDB demo exception.
+	 * 
+	 * @param message
+	 *            the message
+	 * @param cause
+	 *            the cause
+	 */
+	public SikevaDBDemoException(final String message, final Throwable cause)
+	{
+		super(message, cause);
+	}
+
+	/**
+	 * Instantiates a new SikevaDB demo exception.
+	 * 
+	 * @param cause
+	 *            the cause
+	 */
+	public SikevaDBDemoException(final Throwable cause)
+	{
+		super(cause);
+	}
+}

src/fr/devinsy/sikevadb/filetree/ArchiveManager.java

@@ -1,48 +0,0 @@
-/**
- * Copyright (C) 2013-2016 Christian Pierre MOMON <christian.momon@devinsy.fr>
- * 
- * This file is part of SikevaDB, simple key value database.
- * 
- * SikevaDB is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- * 
- * SikevaDB is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- * 
- * You should have received a copy of the GNU Affero General Public License
- * along with SikevaDB.  If not, see <http://www.gnu.org/licenses/>.
- */
-package fr.devinsy.sikevadb.filetree;
-
-import fr.devinsy.sikevadb.core.SikevaDB;
-
-/**
- * 
- * 
- * @author Christian Pierre MOMON
- */
-public class ArchiveManager
-{
-	private SikevaDB database;
-
-	/**
-	 * 
-	 * @param source
-	 */
-	public ArchiveManager(final SikevaDB source)
-	{
-		if (this.database == null)
-		{
-			throw new IllegalArgumentException("Null parameter.");
-		}
-		else
-		{
-			this.database = source;
-		}
-	}
-
-}

src/fr/devinsy/sikevadb/filetree/FileTreeArchiver.java

@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
+ * 
+ * This file is part of SikevaDB, simple key value database.
+ * 
+ * SikevaDB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * SikevaDB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with SikevaDB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package fr.devinsy.sikevadb.filetree;
+
+import java.io.File;
+
+import fr.devinsy.sikevadb.core.Archiver;
+import fr.devinsy.sikevadb.core.Element;
+import fr.devinsy.sikevadb.core.SikevaDB;
+import fr.devinsy.sikevadb.core.SikevaDBException;
+
+/**
+ * The Class FileTreeArchiver.
+ * 
+ * @author Christian Pierre MOMON
+ */
+
+public class FileTreeArchiver implements Archiver
+{
+	private static final String ARCHIVE_PATH = "archive";
+
+	private Status status;
+	private File archiveDirectory;
+	private SikevaDB database;
+
+	/**
+	 * Instantiates a new file tree archiver.
+	 * 
+	 * @param source
+	 *            the source
+	 * 
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
+	 */
+	public FileTreeArchiver(final FileTreeSikevaDB source) throws SikevaDBException
+	{
+		if (source == null)
+		{
+			throw new IllegalArgumentException("Null parameter.");
+		}
+		else
+		{
+			this.status = Status.ACTIVATED;
+			this.archiveDirectory = new File(source.getFileTreeDirectory(), ARCHIVE_PATH);
+			if (this.archiveDirectory.exists())
+			{
+				if (!this.archiveDirectory.isDirectory())
+				{
+					throw new SikevaDBException("Archive directory unavailable.");
+				}
+			}
+			else
+			{
+				this.archiveDirectory.mkdir();
+			}
+			this.database = source;
+		}
+	}
+
+	/* (non-Javadoc)
+	 * @see fr.devinsy.sikevadb.core.Archiver#activate()
+	 */
+	@Override
+	public void activate()
+	{
+		this.status = Status.ACTIVATED;
+	}
+
+	/* (non-Javadoc)
+	 * @see fr.devinsy.sikevadb.core.Archiver#archive(fr.devinsy.sikevadb.core.Element)
+	 */
+	@Override
+	public void archive(final Element element) throws SikevaDBException
+	{
+		// TODO Auto-generated method stub
+	}
+
+	/* (non-Javadoc)
+	 * @see fr.devinsy.sikevadb.core.Archiver#clear()
+	 */
+	@Override
+	public void clear() throws SikevaDBException
+	{
+		// TODO Auto-generated method stub
+	}
+
+	/* (non-Javadoc)
+	 * @see fr.devinsy.sikevadb.core.Archiver#close()
+	 */
+	@Override
+	public void close()
+	{
+		// TODO
+	}
+
+	/**
+	 * Gets the path.
+	 * 
+	 * @return the path
+	 */
+	public File getPath()
+	{
+		return this.archiveDirectory;
+	}
+
+	/* (non-Javadoc)
+	 * @see fr.devinsy.sikevadb.core.Archiver#isActivated()
+	 */
+	@Override
+	public boolean isActivated()
+	{
+		boolean result;
+
+		if (this.status == Status.ACTIVATED)
+		{
+			result = true;
+		}
+		else
+		{
+			result = false;
+		}
+
+		//
+		return result;
+	}
+
+	/* (non-Javadoc)
+	 * @see fr.devinsy.sikevadb.core.Archiver#isSuspended()
+	 */
+	@Override
+	public boolean isSuspended()
+	{
+		boolean result;
+
+		result = !isActivated();
+
+		//
+		return result;
+	}
+
+	/* (non-Javadoc)
+	 * @see fr.devinsy.sikevadb.core.Archiver#suspend()
+	 */
+	@Override
+	public void suspend()
+	{
+		this.status = Status.SUSPENDED;
+	}
+}

src/fr/devinsy/sikevadb/filetree/FileTreeSikevaDBTools.java

@@ -1,5 +1,5 @@
-/**
- * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
+/*
+ * Copyright (C) 2013-2018 Christian Pierre MOMON <christian.momon@devinsy.fr>
  * 
  * This file is part of SikevaDB, simple key value database.
  * 
@@ -22,35 +22,37 @@ import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.UnsupportedEncodingException;
+import java.time.LocalDateTime;
 
 import javax.xml.stream.XMLStreamException;
 
-import org.joda.time.DateTime;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import fr.devinsy.sikevadb.core.Element;
 import fr.devinsy.sikevadb.core.SikevaDBException;
-import fr.devinsy.util.xml.XMLBadFormatException;
-import fr.devinsy.util.xml.XMLReader;
-import fr.devinsy.util.xml.XMLWriter;
+import fr.devinsy.xml.XMLBadFormatException;
+import fr.devinsy.xml.XMLReader;
+import fr.devinsy.xml.XMLWriter;
 
 /**
- * 
+ * The Class FileTreeSikevaDBTools.
  * 
  * @author Christian Pierre MOMON
  */
+
 public class FileTreeSikevaDBTools
 {
 	private static final Logger LOGGER = LoggerFactory.getLogger(FileTreeSikevaDBTools.class);
 
 	/**
+	 * Load element.
 	 * 
 	 * @param source
-	 * @return
-	 * @throws FileNotFoundException
-	 * @throws XMLStreamException
-	 * @throws XMLBadFormatException
+	 *            the source
+	 * @return the element
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
 	 */
 	public static Element loadElement(final File source) throws SikevaDBException
 	{
@@ -82,11 +84,11 @@ public class FileTreeSikevaDBTools
 					result.setId(id);
 
 					// private DateTime creationDate; IN
-					DateTime creationDate = DateTime.parse(in.readContentTag("creation_date").getContent());
+					LocalDateTime creationDate = LocalDateTime.parse(in.readContentTag("creation_date").getContent());
 					result.setCreationDate(creationDate);
 
 					// private DateTime editionDate; IN
-					DateTime editionDate = DateTime.parse(in.readContentTag("edition_date").getContent());
+					LocalDateTime editionDate = LocalDateTime.parse(in.readContentTag("edition_date").getContent());
 					result.setEditionDate(editionDate);
 
 					// private long size; IN
@@ -137,10 +139,14 @@ public class FileTreeSikevaDBTools
 	}
 
 	/**
+	 * Save element.
 	 * 
 	 * @param target
+	 *            the target
 	 * @param source
+	 *            the source
 	 * @throws SikevaDBException
+	 *             the SikevaDB exception
 	 */
 	public static void saveElement(final File target, final Element source) throws SikevaDBException
 	{

src/fr/devinsy/sikevadb/sql/SQLArchiver.java

@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2013-2024 Christian Pierre MOMON <christian.momon@devinsy.fr>
+ * 
+ * This file is part of SikevaDB, simple key value database.
+ * 
+ * SikevaDB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ * 
+ * SikevaDB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with SikevaDB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package fr.devinsy.sikevadb.sql;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import fr.devinsy.sikevadb.core.Archiver;
+import fr.devinsy.sikevadb.core.Element;
+import fr.devinsy.sikevadb.core.SikevaDBException;
+
+/**
+ * The Class SQLArchiver.
+ */
+public class SQLArchiver implements Archiver
+{
+	private static final Logger logger = LoggerFactory.getLogger(SQLArchiver.class);;
+
+	private Status status;
+	private SQLSikevaDB database;
+
+	/**
+	 * Instantiates a new SQL archiver.
+	 * 
+	 * @param source
+	 *            the source
+	 */
+	public SQLArchiver(final SQLSikevaDB source)
+	{
+		if (source == null)
+		{
+			throw new IllegalArgumentException("Null parameter.");
+		}
+		else
+		{
+			this.status = Status.ACTIVATED;
+			this.database = source;
+		}
+	}
+
+	/* (non-Javadoc)
+	 * @see fr.devinsy.sikevadb.core.Archiver#activate()
+	 */
+	@Override
+	public void activate()
+	{
+		this.status = Status.ACTIVATED;
+	}
+
+	/* (non-Javadoc)
+	 * @see fr.devinsy.sikevadb.core.Archiver#archive(fr.devinsy.sikevadb.core.Element)
+	 */
+	@Override
+	public void archive(final Element element) throws SikevaDBException
+	{
+		// TODO
+	}
+
+	/* (non-Javadoc)
+	 * @see fr.devinsy.sikevadb.core.Archiver#clear()
+	 */
+	@Override
+	public void clear() throws SikevaDBException
+	{
+		// TODO
+	}
+
+	/* (non-Javadoc)
+	 * @see fr.devinsy.sikevadb.core.Archiver#close()
+	 */
+	@Override
+	public void close()
+	{
+		// TODO
+	}
+
+	/* (non-Javadoc)
+	 * @see fr.devinsy.sikevadb.core.Archiver#isActivated()
+	 */
+	@Override
+	public boolean isActivated()
+	{
+		boolean result;
+
+		if (this.status == Status.ACTIVATED)
+		{
+			result = true;
+		}
+		else
+		{
+			result = false;
+		}
+
+		//
+		return result;
+	}
+
+	/* (non-Javadoc)
+	 * @see fr.devinsy.sikevadb.core.Archiver#isSuspended()
+	 */
+	@Override
+	public boolean isSuspended()
+	{
+		boolean result;
+
+		result = !isActivated();
+
+		//
+		return result;
+	}
+
+	/* (non-Javadoc)
+	 * @see fr.devinsy.sikevadb.core.Archiver#suspend()
+	 */
+	@Override
+	public void suspend()
+	{
+		this.status = Status.SUSPENDED;
+	}
+}

src/fr/devinsy/sikevadb/sql/SQLSikevaDBTools.java

@@ -1,5 +1,5 @@
-/**
- * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
+/*
+ * Copyright (C) 2013-2024 Christian Pierre MOMON <christian.momon@devinsy.fr>
  * 
  * This file is part of SikevaDB, simple key value database.
  * 
@@ -22,18 +22,20 @@ import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.StringReader;
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.time.LocalDateTime;
+import java.time.ZoneOffset;
 import java.util.Date;
 
+import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.StringUtils;
-import org.joda.time.DateTime;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import fr.devinsy.util.FileTools;
-import fr.devinsy.util.strings.StringList;
+import fr.devinsy.strings.StringList;
 
 /**
- * 
+ * The Class SQLSikevaDBTools.
  * 
  * @author Christian Pierre MOMON
  */
@@ -42,15 +44,19 @@ public class SQLSikevaDBTools
 	private static final Logger logger = LoggerFactory.getLogger(SQLSikevaDBTools.class);
 
 	/**
+	 * Load SQL script.
 	 * 
 	 * @param source
+	 *            the source
+	 * @return the string list
 	 * @throws IOException
+	 *             Signals that an I/O exception has occurred.
 	 */
 	public static StringList loadSQLScript(final URL source) throws IOException
 	{
 		StringList result;
 
-		String script = FileTools.load(source);
+		String script = IOUtils.toString(source, StandardCharsets.UTF_8);
 
 		result = splitSQLCommands(script);
 
@@ -59,9 +65,13 @@ public class SQLSikevaDBTools
 	}
 
 	/**
+	 * Split SQL commands.
 	 * 
 	 * @param source
+	 *            the source
+	 * @return the string list
 	 * @throws IOException
+	 *             Signals that an I/O exception has occurred.
 	 */
 	public static StringList splitSQLCommands(final String source) throws IOException
 	{
@@ -90,22 +100,16 @@ public class SQLSikevaDBTools
 				{
 					if ((StringUtils.isNotBlank(line)) && (!line.startsWith("--")))
 					{
-						//
 						if (line.endsWith(";"))
 						{
-							//
 							sql.append(line.substring(0, line.length() - 1));
 
-							//
 							result.add(sql.toString());
 
-							//
 							sql.clear();
-
 						}
 						else
 						{
-							//
 							sql.append(line).append(' ');
 						}
 					}
@@ -121,13 +125,15 @@ public class SQLSikevaDBTools
 	}
 
 	/**
+	 * To date time.
 	 * 
 	 * @param source
-	 * @return
+	 *            the source
+	 * @return the date time
 	 */
-	public static DateTime toDateTime(final java.sql.Timestamp source)
+	public static LocalDateTime toDateTime(final java.sql.Timestamp source)
 	{
-		DateTime result;
+		LocalDateTime result;
 
 		if (source == null)
 		{
@@ -135,7 +141,9 @@ public class SQLSikevaDBTools
 		}
 		else
 		{
-			result = new DateTime(source.getTime());
+			long seconds = source.getTime() / 1000;
+			long nanos = (source.getTime() - seconds * 1000) * 1000000;
+			result = LocalDateTime.ofEpochSecond(seconds, (int) nanos, ZoneOffset.UTC);
 		}
 
 		//
@@ -143,9 +151,11 @@ public class SQLSikevaDBTools
 	}
 
 	/**
+	 * To timestamp.
 	 * 
 	 * @param source
-	 * @return
+	 *            the source
+	 * @return the java.sql. timestamp
 	 */
 	public static java.sql.Timestamp toTimestamp(final Date source)
 	{
@@ -157,7 +167,7 @@ public class SQLSikevaDBTools
 		}
 		else
 		{
-			result = new java.sql.Timestamp(source.getTime());
+			result = new java.sql.Timestamp(source.getTime() * 1000);
 		}
 
 		//
@@ -165,11 +175,13 @@ public class SQLSikevaDBTools
 	}
 
 	/**
+	 * To timestamp.
 	 * 
 	 * @param source
-	 * @return
+	 *            the source
+	 * @return the java.sql. timestamp
 	 */
-	public static java.sql.Timestamp toTimestamp(final DateTime source)
+	public static java.sql.Timestamp toTimestamp(final LocalDateTime source)
 	{
 		java.sql.Timestamp result;
 
@@ -179,7 +191,9 @@ public class SQLSikevaDBTools
 		}
 		else
 		{
-			result = new java.sql.Timestamp(source.getMillis());
+			long seconds = source.toEpochSecond(ZoneOffset.UTC);
+			long milliseconds = source.getNano() / 1000000;
+			result = new java.sql.Timestamp(seconds * 1000 + milliseconds);
 		}
 
 		//

src/utils/BuildInformation.java

@@ -1,5 +1,5 @@
-/**
- * Copyright (C) 2013-2016 Christian Pierre MOMON <christian.momon@devinsy.fr>
+/*
+ * Copyright (C) 2013-2017 Christian Pierre MOMON <christian.momon@devinsy.fr>
  * 
  * This file is part of SikevaDB, simple key value database.
  * 
@@ -27,9 +27,11 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 /**
+ * The Class BuildInformation.
  * 
  * @author Christian Pierre MOMON (christian.momon@devinsy.fr)
  */
+
 public class BuildInformation
 {
 	private static class SingletonHolder
@@ -50,8 +52,8 @@ public class BuildInformation
 	private String buildAuthor;
 
 	/**
-     *
-     */
+	 * Instantiates a new builds the information.
+	 */
 	private BuildInformation()
 	{
 		Properties build = new Properties();
@@ -92,47 +94,78 @@ public class BuildInformation
 	}
 
 	/**
+	 * Builds the author.
 	 * 
-	 * @return
+	 * @return the string
 	 */
 	public String buildAuthor()
 	{
 		return this.buildAuthor;
 	}
 
+	/**
+	 * Builds the date.
+	 * 
+	 * @return the string
+	 */
 	public String buildDate()
 	{
 		return this.buildDate;
 	}
 
+	/**
+	 * Builds the number.
+	 * 
+	 * @return the string
+	 */
 	public String buildNumber()
 	{
 		return this.buildNumber;
 	}
 
+	/**
+	 * Generator.
+	 * 
+	 * @return the string
+	 */
 	public String generator()
 	{
 		return this.generator;
 	}
 
+	/**
+	 * Major revision.
+	 * 
+	 * @return the string
+	 */
 	public String majorRevision()
 	{
 		return this.majorRevision;
 	}
 
+	/**
+	 * Minor revision.
+	 * 
+	 * @return the string
+	 */
 	public String minorRevision()
 	{
 		return this.minorRevision;
 	}
 
+	/**
+	 * Product name.
+	 * 
+	 * @return the string
+	 */
 	public String productName()
 	{
 		return this.productName;
 	}
 
-	/**
-     *
-     */
+	/* (non-Javadoc)
+	 * @see java.lang.Object#toString()
+	 */
 	@Override
 	public String toString()
 	{
@@ -145,8 +178,9 @@ public class BuildInformation
 	}
 
 	/**
+	 * Version.
 	 * 
-	 * @return
+	 * @return the string
 	 */
 	public String version()
 	{
@@ -159,8 +193,9 @@ public class BuildInformation
 	}
 
 	/**
+	 * Instance.
 	 * 
-	 * @return
+	 * @return the builds the information
 	 */
 	public static BuildInformation instance()
 	{
@@ -168,8 +203,10 @@ public class BuildInformation
 	}
 
 	/**
-     *
-     */
+	 * Checks if is defined.
+	 * 
+	 * @return true, if is defined
+	 */
 	public static boolean isDefined()
 	{
 		boolean result;

test/fr/devinsy/sikevadb/filetree/TreeFileSikevaDBTest.java

@@ -1,5 +1,5 @@
-/**
- * Copyright (C) 2013-2017 Christian Pierre MOMON, DEVINSY
+/*
+ * Copyright (C) 2013-2024 Christian Pierre MOMON, DEVINSY
  * 
  * This file is part of SikevaDB, simple key value database.
  * 
@@ -19,13 +19,13 @@
 package fr.devinsy.sikevadb.filetree;
 
 import java.io.File;
+import java.time.LocalDateTime;
 
 import org.apache.commons.codec.binary.Base64;
 import org.apache.commons.lang3.RandomStringUtils;
-import org.apache.log4j.BasicConfigurator;
-import org.apache.log4j.Level;
-import org.apache.log4j.Logger;
-import org.joda.time.DateTime;
+import org.apache.logging.log4j.Level;
+import org.apache.logging.log4j.core.config.Configurator;
+import org.apache.logging.log4j.core.config.DefaultConfiguration;
 import org.junit.AfterClass;
 import org.junit.Assert;
 import org.junit.BeforeClass;
@@ -34,9 +34,11 @@ import org.junit.Test;
 import fr.devinsy.sikevadb.core.Element;
 import fr.devinsy.sikevadb.core.Elements;
 import fr.devinsy.sikevadb.core.SikevaDBException;
-import fr.devinsy.util.strings.StringList;
+import fr.devinsy.sikevadb.core.XMLSikevaDB;
+import fr.devinsy.strings.StringList;
 
 /**
+ * The Class TreeFileSikevaDBTest.
  * 
  * @author Christian Pierre MOMON
  */
@@ -45,8 +47,43 @@ public class TreeFileSikevaDBTest
 	private static org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(TreeFileSikevaDBTest.class);
 	private static FileTreeSikevaDB database;
 
+	@Test
+	public void testExport01() throws Exception
+	{
+		//
+		logger.debug("===== test starting...");
+
+		database.clear();
+
+		database.put("alpha01", "qlskjfmlqja");
+		database.put("alpha01", "qlskjfmlqjb");
+		database.put("alpha02", "qlskjfmlqj");
+		database.put("alpha03", "qlskjfmlqj");
+		database.put("alpha04", "qlskjfmlqj");
+		database.put("alpha05", "qlskjfmlqj");
+		database.delete("alpha03");
+		database.put("alpha01s", "bravo1", "qlskjfmlqja");
+		database.put("alpha01s", "bravo1", "qlskjfmlqjb");
+		database.put("alpha01s", "bravo2", "qlskjfmlqj");
+		database.put("alpha01s", "bravo3", "qlskjfmlqj");
+		database.put("alpha01s", "bravo4", "qlskjfmlqj");
+		database.put("alpha01s", "bravo5", "qlskjfmlqj");
+		database.delete("alpha01s", "bravo3");
+
+		File file = File.createTempFile("sikevadb-", ".tmp");
+		XMLSikevaDB.export(file, database);
+		Assert.assertTrue(file.exists());
+		file.delete();
+
+		//
+		logger.debug("===== test done.");
+	}
+
 	/**
+	 * Test get keyse 01.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testGetKeyse01() throws Exception
@@ -76,7 +113,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test get keyse 02.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testGetKeyse02() throws Exception
@@ -99,9 +139,9 @@ public class TreeFileSikevaDBTest
 		database.put("alpha01s", "bravo4", "qlskjfmlqj");
 		database.put("alpha01s", "bravo5", "qlskjfmlqj");
 
-		StringList keys = database.getKeys();
+		StringList keys = database.getTopKeys();
 
-		Assert.assertEquals(5, keys.size());
+		Assert.assertEquals(6, keys.size());
 		Assert.assertTrue(keys.contains("alpha03"));
 		Assert.assertEquals(0, database.getSubkeys("alpha03s").size());
 		Assert.assertEquals(5, database.getSubkeys("alpha01s").size());
@@ -111,7 +151,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test memory size 01.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testMemorySize01() throws Exception
@@ -150,7 +193,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test put 01.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testPut01() throws Exception
@@ -170,7 +216,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test put 02.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testPut02() throws Exception
@@ -191,7 +240,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test put 03.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test(expected = IllegalArgumentException.class)
 	public void testPut03() throws Exception
@@ -208,7 +260,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test put 04.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testPut04() throws Exception
@@ -229,7 +284,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test put 05.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testPut05() throws Exception
@@ -260,7 +318,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test put 06.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testPut06() throws Exception
@@ -292,7 +353,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test put element 01.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testPutElement01() throws Exception
@@ -308,9 +372,9 @@ public class TreeFileSikevaDBTest
 		element.setSubkey(null);
 		element.setSize(10);
 		element.setDigest("qsdkfqskjf");
-		element.setCreationDate(DateTime.now().minusDays(11));
-		element.setEditionDate(DateTime.now().minusDays(11));
-		element.setArchiveDate(DateTime.now().minusDays(10));
+		element.setCreationDate(LocalDateTime.now().minusDays(11));
+		element.setEditionDate(LocalDateTime.now().minusDays(11));
+		element.setArchiveDate(LocalDateTime.now().minusDays(10));
 		element.setValue("bonjour");
 
 		database.put(element);
@@ -324,7 +388,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test put element 02.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testPutElement02() throws Exception
@@ -342,9 +409,9 @@ public class TreeFileSikevaDBTest
 		element.setSubkey(null);
 		element.setSize(10);
 		element.setDigest("qsdkfqskjf");
-		element.setCreationDate(DateTime.now().minusDays(11));
-		element.setEditionDate(DateTime.now().minusDays(11));
-		element.setArchiveDate(DateTime.now().minusDays(10));
+		element.setCreationDate(LocalDateTime.now().minusDays(11));
+		element.setEditionDate(LocalDateTime.now().minusDays(11));
+		element.setArchiveDate(LocalDateTime.now().minusDays(10));
 		element.setValue("bonjour");
 
 		database.put(element);
@@ -358,7 +425,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test put element 03.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testPutElement03() throws Exception
@@ -376,9 +446,9 @@ public class TreeFileSikevaDBTest
 			element.setSubkey(null);
 			element.setSize(10);
 			element.setDigest("qsdkfqskjf");
-			element.setCreationDate(DateTime.now().minusDays(11));
-			element.setEditionDate(DateTime.now().minusDays(11));
-			element.setArchiveDate(DateTime.now().minusDays(10));
+			element.setCreationDate(LocalDateTime.now().minusDays(11));
+			element.setEditionDate(LocalDateTime.now().minusDays(11));
+			element.setArchiveDate(LocalDateTime.now().minusDays(10));
 			element.setValue("bonjour");
 
 			database.put(element);
@@ -391,9 +461,9 @@ public class TreeFileSikevaDBTest
 			element.setSubkey(null);
 			element.setSize(10);
 			element.setDigest("qsdkfqskjf");
-			element.setCreationDate(DateTime.now().minusDays(11));
-			element.setEditionDate(DateTime.now().minusDays(11));
-			element.setArchiveDate(DateTime.now().minusDays(10));
+			element.setCreationDate(LocalDateTime.now().minusDays(11));
+			element.setEditionDate(LocalDateTime.now().minusDays(11));
+			element.setArchiveDate(LocalDateTime.now().minusDays(10));
 			element.setValue("bonjour");
 
 			database.put(element);
@@ -415,7 +485,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test random 01.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testRandom01() throws Exception
@@ -440,7 +513,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test remove 01.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testRemove01() throws Exception
@@ -472,7 +548,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test remove many 01.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testRemoveMany01() throws Exception
@@ -498,7 +577,7 @@ public class TreeFileSikevaDBTest
 
 		Assert.assertEquals(12, database.countOfElements());
 
-		database.removeMany("alpha01", "bravo", "delta", "fox");
+		database.deleteMany("alpha01", "bravo", "delta", "fox");
 
 		Assert.assertEquals(9, database.countOfElements());
 
@@ -507,7 +586,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test rename key 01.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testRenameKey01() throws Exception
@@ -537,7 +619,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test size 01.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testSize01() throws Exception
@@ -557,14 +642,14 @@ public class TreeFileSikevaDBTest
 		database.put("alpha03", "qlskjfmlqj");
 		database.put("alpha04", "qlskjfmlqj");
 		database.put("alpha05", "qlskjfmlqj");
-		database.remove("alpha03");
+		database.delete("alpha03");
 		database.put("alpha01s", "bravo1", "qlskjfmlqja");
 		database.put("alpha01s", "bravo1", "qlskjfmlqjb");
 		database.put("alpha01s", "bravo2", "qlskjfmlqj");
 		database.put("alpha01s", "bravo3", "qlskjfmlqj");
 		database.put("alpha01s", "bravo4", "qlskjfmlqj");
 		database.put("alpha01s", "bravo5", "qlskjfmlqj");
-		database.remove("alpha01s", "bravo3");
+		database.delete("alpha01s", "bravo3");
 
 		// System.out.println(database.countOfElements() + " " +
 		// database.countOfArchivedElements() + " " +
@@ -585,7 +670,10 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * Test tittle 01.
+	 * 
 	 * @throws Exception
+	 *             the exception
 	 */
 	@Test
 	public void testTittle01() throws Exception
@@ -605,25 +693,32 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * After class.
 	 * 
+	 * @throws SikevaDBException
+	 *             the SikevaDB exception
 	 */
 	@AfterClass
-	public static void afterClass()
+	public static void afterClass() throws SikevaDBException
 	{
 		if (database != null)
 		{
 			database.close();
+			database.destroy();
 		}
 	}
 
 	/**
+	 * Before class.
+	 * 
 	 * @throws SikevaDBException
+	 *             the SikevaDB exception
 	 */
 	@BeforeClass
 	public static void beforeClass() throws SikevaDBException
 	{
-		BasicConfigurator.configure();
-		Logger.getRootLogger().setLevel(Level.DEBUG);
+		Configurator.initialize(new DefaultConfiguration());
+		Configurator.setRootLevel(Level.DEBUG);
 
 		// Add ?profileSQL=true to generate huge logs.
 
@@ -631,10 +726,10 @@ public class TreeFileSikevaDBTest
 		// "jdbc:mysql://localhost:3306/sikevadb-test", "sikevadb-test",
 		// "12345678");
 
-		File rootDirectory = new File("/tmp/footest");
-		database = new FileTreeSikevaDB(rootDirectory, null, null);
+		File homeDirectory = new File("/tmp/footest");
+		database = new FileTreeSikevaDB(homeDirectory, null, null);
 
-		if (!database.isCreated())
+		if (!database.exists())
 		{
 			database.create();
 		}

test/fr/devinsy/sikevadb/sql/SQLSikevaDBTest.java

@@ -1,5 +1,5 @@
-/**
- * Copyright (C) 2013-2017 Christian Pierre MOMON, DEVINSY
+/*
+ * Copyright (C) 2013-2024 Christian Pierre MOMON, DEVINSY
  * 
  * This file is part of SikevaDB, simple key value database.
  * 
@@ -18,12 +18,13 @@
  */
 package fr.devinsy.sikevadb.sql;
 
+import java.time.LocalDateTime;
+
 import org.apache.commons.codec.binary.Base64;
 import org.apache.commons.lang3.RandomStringUtils;
-import org.apache.log4j.BasicConfigurator;
-import org.apache.log4j.Level;
-import org.apache.log4j.Logger;
-import org.joda.time.DateTime;
+import org.apache.logging.log4j.Level;
+import org.apache.logging.log4j.core.config.Configurator;
+import org.apache.logging.log4j.core.config.DefaultConfiguration;
 import org.junit.AfterClass;
 import org.junit.Assert;
 import org.junit.BeforeClass;
@@ -32,9 +33,10 @@ import org.junit.Test;
 import fr.devinsy.sikevadb.core.Element;
 import fr.devinsy.sikevadb.core.Elements;
 import fr.devinsy.sikevadb.core.SikevaDBException;
-import fr.devinsy.util.strings.StringList;
+import fr.devinsy.strings.StringList;
 
 /**
+ * The Class SQLSikevaDBTest.
  * 
  * @author Christian Pierre MOMON
  */
@@ -60,9 +62,9 @@ public class SQLSikevaDBTest
 		element.setSubkey(null);
 		element.setSize(10);
 		element.setDigest("qsdkfqskjf");
-		element.setCreationDate(DateTime.now().minusDays(11));
-		element.setEditionDate(DateTime.now().minusDays(11));
-		element.setArchiveDate(DateTime.now().minusDays(10));
+		element.setCreationDate(LocalDateTime.now().minusDays(11));
+		element.setEditionDate(LocalDateTime.now().minusDays(11));
+		element.setArchiveDate(LocalDateTime.now().minusDays(10));
 		element.setValue("bonjour");
 
 		database.put(element);
@@ -96,9 +98,9 @@ public class SQLSikevaDBTest
 		element.setSubkey(null);
 		element.setSize(10);
 		element.setDigest("qsdkfqskjf");
-		element.setCreationDate(DateTime.now());
-		element.setEditionDate(DateTime.now());
-		element.setArchiveDate(DateTime.now().minusDays(10));
+		element.setCreationDate(LocalDateTime.now());
+		element.setEditionDate(LocalDateTime.now());
+		element.setArchiveDate(LocalDateTime.now().minusDays(10));
 		element.setValue("bonjour");
 
 		database.put(element);
@@ -169,7 +171,7 @@ public class SQLSikevaDBTest
 		database.put("alpha01", "bravo4", "qlskjfmlqj");
 		database.put("alpha01", "bravo5", "qlskjfmlqj");
 
-		StringList keys = database.getKeys();
+		StringList keys = database.getTopKeys();
 
 		Assert.assertEquals(5, keys.size());
 		Assert.assertTrue(keys.contains("alpha03"));
@@ -378,9 +380,9 @@ public class SQLSikevaDBTest
 		element.setSubkey(null);
 		element.setSize(10);
 		element.setDigest("qsdkfqskjf");
-		element.setCreationDate(DateTime.now().minusDays(11));
-		element.setEditionDate(DateTime.now().minusDays(11));
-		element.setArchiveDate(DateTime.now().minusDays(10));
+		element.setCreationDate(LocalDateTime.now().minusDays(11));
+		element.setEditionDate(LocalDateTime.now().minusDays(11));
+		element.setArchiveDate(LocalDateTime.now().minusDays(10));
 		element.setValue("bonjour");
 
 		database.put(element);
@@ -411,9 +413,9 @@ public class SQLSikevaDBTest
 		element.setSubkey(null);
 		element.setSize(10);
 		element.setDigest("qsdkfqskjf");
-		element.setCreationDate(DateTime.now().minusDays(11));
-		element.setEditionDate(DateTime.now().minusDays(11));
-		element.setArchiveDate(DateTime.now().minusDays(10));
+		element.setCreationDate(LocalDateTime.now().minusDays(11));
+		element.setEditionDate(LocalDateTime.now().minusDays(11));
+		element.setArchiveDate(LocalDateTime.now().minusDays(10));
 		element.setValue("bonjour");
 
 		database.put(element);
@@ -445,9 +447,9 @@ public class SQLSikevaDBTest
 			element.setSubkey(null);
 			element.setSize(10);
 			element.setDigest("qsdkfqskjf");
-			element.setCreationDate(DateTime.now().minusDays(11));
-			element.setEditionDate(DateTime.now().minusDays(11));
-			element.setArchiveDate(DateTime.now().minusDays(10));
+			element.setCreationDate(LocalDateTime.now().minusDays(11));
+			element.setEditionDate(LocalDateTime.now().minusDays(11));
+			element.setArchiveDate(LocalDateTime.now().minusDays(10));
 			element.setValue("bonjour");
 
 			database.put(element);
@@ -460,9 +462,9 @@ public class SQLSikevaDBTest
 			element.setSubkey(null);
 			element.setSize(10);
 			element.setDigest("qsdkfqskjf");
-			element.setCreationDate(DateTime.now().minusDays(11));
-			element.setEditionDate(DateTime.now().minusDays(11));
-			element.setArchiveDate(DateTime.now().minusDays(10));
+			element.setCreationDate(LocalDateTime.now().minusDays(11));
+			element.setEditionDate(LocalDateTime.now().minusDays(11));
+			element.setArchiveDate(LocalDateTime.now().minusDays(10));
 			element.setValue("bonjour");
 
 			database.put(element);
@@ -566,7 +568,7 @@ public class SQLSikevaDBTest
 
 		Assert.assertEquals(12, database.countOfElements());
 
-		database.removeMany("alpha01", "bravo", "delta", "fox");
+		database.deleteMany("alpha01", "bravo", "delta", "fox");
 
 		Assert.assertEquals(9, database.countOfElements());
 
@@ -625,14 +627,14 @@ public class SQLSikevaDBTest
 		database.put("alpha03", "qlskjfmlqj");
 		database.put("alpha04", "qlskjfmlqj");
 		database.put("alpha05", "qlskjfmlqj");
-		database.remove("alpha03");
+		database.delete("alpha03");
 		database.put("alpha01", "bravo1", "qlskjfmlqja");
 		database.put("alpha01", "bravo1", "qlskjfmlqjb");
 		database.put("alpha01", "bravo2", "qlskjfmlqj");
 		database.put("alpha01", "bravo3", "qlskjfmlqj");
 		database.put("alpha01", "bravo4", "qlskjfmlqj");
 		database.put("alpha01", "bravo5", "qlskjfmlqj");
-		database.remove("alpha01", "bravo3");
+		database.delete("alpha01", "bravo3");
 
 		// System.out.println(database.countOfElements() + " " +
 		// database.countOfArchivedElements() + " " +
@@ -690,8 +692,8 @@ public class SQLSikevaDBTest
 	@BeforeClass
 	public static void beforeClass() throws SikevaDBException
 	{
-		BasicConfigurator.configure();
-		Logger.getRootLogger().setLevel(Level.ERROR);
+		Configurator.initialize(new DefaultConfiguration());
+		Configurator.setRootLevel(Level.DEBUG);
 
 		// Add ?profileSQL=true to generate huge logs.
 
@@ -700,7 +702,7 @@ public class SQLSikevaDBTest
 		// "12345678");
 
 		database = new SQLSikevaDB("org.hsqldb.jdbcDriver", "jdbc:hsqldb:mem:sikevadb-unittest;sql.syntax_mys=true", "sa", "");
-		database.open();
 		database.create();
+		database.open();
 	}
 }