Added database status check in methods.

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

@@ -84,7 +84,7 @@ public class FileTreeSikevaDB implements SikevaDB
 		}
 		else if (StringUtils.equals(homeDirectory.getAbsolutePath(), "/"))
 		{
-			throw new SikevaDBException("Invalide home directory (file system root).");
+			throw new SikevaDBException("Invalid home directory (file system root).");
 		}
 		else
 		{
@@ -114,6 +114,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void clear() throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			try
 			{
@@ -128,17 +130,10 @@ public class FileTreeSikevaDB implements SikevaDB
 				throw new SikevaDBException("Error clearing database", exception);
 			}
 		}
-
+		else
-	/**
-	 * {@inheritDoc}
-	 * 
-	 */
-	@Override
-	public void close()
 		{
-		this.archiver.close();
+			throw new SikevaDBException("Invalid database status (closed).");
-
+		}
-		this.status = Status.CLOSED;
 	}
 
 	/**
@@ -146,10 +141,32 @@ public class FileTreeSikevaDB implements SikevaDB
 	 * 
 	 */
 	@Override
-	public long countOfElements()
+	public void close() throws SikevaDBException
+	{
+		if (isOpened())
+		{
+			this.archiver.close();
+
+			this.status = Status.CLOSED;
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
+	}
+
+	/**
+	 * {@inheritDoc}
+	 * 
+	 */
+	@Override
+	public long countOfElements() throws SikevaDBException
 	{
 		long result;
 
+		if (isOpened())
+		{
+
 			File[] topFiles = this.dataDirectory.listFiles();
 
 			result = 0;
@@ -165,6 +182,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					result += 1;
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -173,12 +195,16 @@ public class FileTreeSikevaDB implements SikevaDB
 	/**
 	 * {@inheritDoc}
 	 * 
+	 * @throws SikevaDBException
+	 * 
 	 */
 	@Override
-	public long countOfElements(final String key)
+	public long countOfElements(final String key) throws SikevaDBException
 	{
 		long result;
 
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Null key detected.");
@@ -197,6 +223,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					result = subFiles.length;
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -222,10 +253,12 @@ public class FileTreeSikevaDB implements SikevaDB
 	 * 
 	 */
 	@Override
-	public long countOfElements(final String key, final String subkey)
+	public long countOfElements(final String key, final String subkey) throws SikevaDBException
 	{
 		long result;
 
+		if (isOpened())
+		{
 			if ((key == null) || (subkey == null))
 			{
 				throw new IllegalArgumentException("Null key detected [key=" + key + "][subkey=" + subkey + "].");
@@ -243,6 +276,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					result = 0;
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -257,7 +295,7 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		if (this.status == Status.OPENED)
 		{
-			throw new SikevaDBException("Invalid state.");
+			throw new SikevaDBException("Invalid database status (opened).");
 		}
 		else if (this.homeDirectory == null)
 		{
@@ -282,7 +320,11 @@ public class FileTreeSikevaDB implements SikevaDB
 	@Override
 	public void destroy() throws SikevaDBException
 	{
-		if (this.homeDirectory == null)
+		if (isOpened())
+		{
+			throw new SikevaDBException("Invalid database status (opened).");
+		}
+		else if (this.homeDirectory == null)
 		{
 			throw new SikevaDBException("Invalid home directory (undefined), destroy operation is cancelled.");
 		}
@@ -364,6 +406,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		Element result;
 
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Null key detected.");
@@ -378,6 +422,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					result.setSubkey(null);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -407,7 +456,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		Element result;
 
-		//
+		if (isOpened())
+		{
 			if ((key == null) || (subkey == null))
 			{
 				throw new IllegalArgumentException("Null key detected [key=" + key + "][subkey=" + subkey + "].");
@@ -425,6 +475,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					result.setSubkey(subkey);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -438,6 +493,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		Elements result;
 
+		if (isOpened())
+		{
 			result = new Elements((int) countOfElements());
 
 			File[] topFiles = this.dataDirectory.listFiles();
@@ -464,6 +521,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					}
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -478,6 +540,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		Elements result;
 
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Null key detected.");
@@ -498,6 +562,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					}
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -522,7 +591,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		StringList result;
 
-		//
+		if (isOpened())
+		{
 			result = new StringList((int) countOfElements());
 
 			File[] topFiles = this.dataDirectory.listFiles();
@@ -545,6 +615,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					}
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -578,6 +653,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		StringList result;
 
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Null key detected.");
@@ -597,6 +674,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					}
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -612,6 +694,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		String result;
 
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Null key detected.");
@@ -630,6 +714,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					result = null;
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -660,6 +749,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		String result;
 
+		if (isOpened())
+		{
 			if ((key == null) || (subkey == null))
 			{
 				throw new IllegalArgumentException("Null key detected [key=" + key + "][subkey=" + subkey + "].");
@@ -679,6 +770,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					result = null;
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -694,6 +790,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		StringList result;
 
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Null key detected.");
@@ -721,6 +819,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					}
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -829,6 +932,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		long result;
 
+		if (isOpened())
+		{
 			//
 			result = 0;
 
@@ -857,6 +962,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					}
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -872,6 +982,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		long result;
 
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Null key detected.");
@@ -900,6 +1012,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					result = 0;
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -929,6 +1046,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		long result;
 
+		if (isOpened())
+		{
 			if ((key == null) || (subkey == null))
 			{
 				throw new IllegalArgumentException("Null key detected [key=" + key + "][subkey=" + subkey + "].");
@@ -949,6 +1068,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					result = 0;
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -985,6 +1109,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void put(final Element element) throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			if (element == null)
 			{
@@ -1022,6 +1148,11 @@ public class FileTreeSikevaDB implements SikevaDB
 				}
 			}
 		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
+	}
 
 	/**
 	 * {@inheritDoc}
@@ -1039,6 +1170,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void put(final String key, final String value) throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			if (key == null)
 			{
@@ -1066,6 +1199,11 @@ public class FileTreeSikevaDB implements SikevaDB
 				put(element);
 			}
 		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
+	}
 
 	/**
 	 * {@inheritDoc}
@@ -1073,6 +1211,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void put(final String key, final String subkey, final String value) throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			if ((key == null) || (subkey == null))
 			{
@@ -1101,6 +1241,11 @@ public class FileTreeSikevaDB implements SikevaDB
 				put(element);
 			}
 		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
+	}
 
 	/**
 	 * {@inheritDoc}
@@ -1108,6 +1253,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void remove(final String key) throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			if (key == null)
 			{
@@ -1131,6 +1278,11 @@ public class FileTreeSikevaDB implements SikevaDB
 				}
 			}
 		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
+	}
 
 	/**
 	 * {@inheritDoc}
@@ -1148,6 +1300,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void remove(final String key, final String subkey) throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			if ((key == null) || (subkey == null))
 			{
@@ -1172,6 +1326,11 @@ public class FileTreeSikevaDB implements SikevaDB
 				}
 			}
 		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
+	}
 
 	/**
 	 * {@inheritDoc}
@@ -1179,6 +1338,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void removeMany(final String key, final String... subkeys) throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			if (key == null)
 			{
@@ -1195,16 +1356,23 @@ public class FileTreeSikevaDB implements SikevaDB
 				}
 			}
 		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (opened).");
+		}
+	}
 
 	/**
 	 * {@inheritDoc}
 	 * 
 	 */
 	@Override
-	public void renameKey(final String oldKey, final String newKey)
+	public void renameKey(final String oldKey, final String newKey) throws SikevaDBException
 	{
 		this.logger.debug("renameKey starting... [{}][{}]", oldKey, newKey);
 
+		if (isOpened())
+		{
 			if (oldKey == null)
 			{
 				throw new IllegalArgumentException("OldKey is null.");
@@ -1234,6 +1402,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					oldFile.renameTo(newFile);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		this.logger.debug("renameKey done.");
 	}
@@ -1256,11 +1429,13 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		this.logger.debug("renameSybKey starting... [{}][{}][{}]", oldSubkey, newSubkey);
 
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Top key is null.");
 			}
-		if (oldSubkey == null)
+			else if (oldSubkey == null)
 			{
 				throw new IllegalArgumentException("OldKey is null.");
 			}
@@ -1290,6 +1465,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					throw new IllegalArgumentException("Invalid oldKey [" + oldSubkey + "].");
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		this.logger.debug("renameSubKey done.");
 	}
@@ -1304,6 +1484,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		this.logger.info("replaceInValue starting... [{}]", key);
 
+		if (isOpened())
+		{
 			//
 			String value = getValue(key);
 
@@ -1315,6 +1497,11 @@ public class FileTreeSikevaDB implements SikevaDB
 
 			//
 			put(key, value);
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		this.logger.info("replaceInValue done.");
 	}
@@ -1329,6 +1516,8 @@ public class FileTreeSikevaDB implements SikevaDB
 	{
 		this.logger.info("replaceInValues starting... [{}]", key);
 
+		if (isOpened())
+		{
 			//
 			Elements elements = getElements(key);
 
@@ -1355,6 +1544,11 @@ public class FileTreeSikevaDB implements SikevaDB
 					put(element.getKey(), element.getSubkey(), value);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		this.logger.info("replaceInValues done.");
 	}

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

@@ -144,6 +144,8 @@ public class SQLSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void clear() throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			Connection connection = null;
 			PreparedStatement statement = null;
@@ -165,6 +167,11 @@ public class SQLSikevaDB implements SikevaDB
 				closeQuietly(connection, statement, resultSet);
 			}
 		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
+	}
 
 	/**
 	 * {@inheritDoc}
@@ -253,6 +260,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		long result;
 
+		if (isOpened())
+		{
 			Connection connection = null;
 			Statement statement = null;
 			ResultSet resultSet = null;
@@ -275,6 +284,11 @@ public class SQLSikevaDB implements SikevaDB
 			{
 				closeQuietly(connection, statement, resultSet);
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -289,6 +303,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		long result;
 
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Key is null.");
@@ -319,6 +335,11 @@ public class SQLSikevaDB implements SikevaDB
 					closeQuietly(connection, statement, resultSet);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -348,6 +369,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		long result;
 
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Key is null.");
@@ -383,6 +406,11 @@ public class SQLSikevaDB implements SikevaDB
 					closeQuietly(connection, statement, resultSet);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -560,6 +588,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		Element result;
 
+		if (isOpened())
+		{
 			if (id == Element.NO_ID)
 			{
 				result = null;
@@ -616,6 +646,11 @@ public class SQLSikevaDB implements SikevaDB
 					closeQuietly(connection, statement, resultSet);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -630,7 +665,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		Element result;
 
-		//
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Key is null.");
@@ -688,6 +724,11 @@ public class SQLSikevaDB implements SikevaDB
 					closeQuietly(connection, statement, resultSet);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -717,7 +758,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		Element result;
 
-		//
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Key is null.");
@@ -781,6 +823,11 @@ public class SQLSikevaDB implements SikevaDB
 					closeQuietly(connection, statement, resultSet);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -795,6 +842,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		Elements result;
 
+		if (isOpened())
+		{
 			//
 			result = new Elements((int) countOfElements());
 
@@ -838,6 +887,11 @@ public class SQLSikevaDB implements SikevaDB
 			{
 				closeQuietly(connection, statement, resultSet);
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -852,7 +906,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		Elements result;
 
-		//
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Key is null.");
@@ -904,6 +959,11 @@ public class SQLSikevaDB implements SikevaDB
 					closeQuietly(connection, statement, resultSet);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -918,6 +978,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		StringList result;
 
+		if (isOpened())
+		{
 			//
 			result = new StringList();
 
@@ -946,6 +1008,11 @@ public class SQLSikevaDB implements SikevaDB
 			{
 				closeQuietly(connection, statement, resultSet);
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -978,7 +1045,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		StringList result;
 
-		//
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Key is null.");
@@ -1016,6 +1084,11 @@ public class SQLSikevaDB implements SikevaDB
 					closeQuietly(connection, statement, resultSet);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -1039,6 +1112,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		String result;
 
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Key is null.");
@@ -1083,6 +1158,11 @@ public class SQLSikevaDB implements SikevaDB
 					closeQuietly(connection, statement, resultSet);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -1112,6 +1192,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		String result;
 
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Key is null.");
@@ -1161,6 +1243,11 @@ public class SQLSikevaDB implements SikevaDB
 					closeQuietly(connection, statement, resultSet);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -1175,6 +1262,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		StringList result;
 
+		if (isOpened())
+		{
 			//
 			result = new StringList((int) countOfElements(key));
 
@@ -1204,6 +1293,11 @@ public class SQLSikevaDB implements SikevaDB
 			{
 				closeQuietly(connection, statement, resultSet);
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -1308,6 +1402,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		long result;
 
+		if (isOpened())
+		{
 			//
 			Connection connection = null;
 			PreparedStatement statement = null;
@@ -1331,6 +1427,11 @@ public class SQLSikevaDB implements SikevaDB
 			{
 				closeQuietly(connection, statement, resultSet);
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -1345,6 +1446,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		long result;
 
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Key is null.");
@@ -1375,6 +1478,11 @@ public class SQLSikevaDB implements SikevaDB
 					closeQuietly(connection, statement, resultSet);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -1404,7 +1512,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		long result;
 
-		//
+		if (isOpened())
+		{
 			if (key == null)
 			{
 				throw new IllegalArgumentException("Key is null.");
@@ -1441,6 +1550,11 @@ public class SQLSikevaDB implements SikevaDB
 					closeQuietly(connection, statement, resultSet);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		//
 		return result;
@@ -1514,6 +1628,8 @@ public class SQLSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void put(final Element element) throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			if (element == null)
 			{
@@ -1568,7 +1684,8 @@ public class SQLSikevaDB implements SikevaDB
 					{
 						connection = getConnection();
 						connection.setAutoCommit(true);
-					statement = connection.prepareStatement("INSERT INTO sikevadb_elements (TOPKEY,SUBKEY,VALUE,SIZE,DIGEST,CREATION_DATE,EDITION_DATE,ARCHIVE_DATE) VALUES(?, ?, ?, ?, ?, ?, ?, ?)");
+						statement = connection
+								.prepareStatement("INSERT INTO sikevadb_elements (TOPKEY,SUBKEY,VALUE,SIZE,DIGEST,CREATION_DATE,EDITION_DATE,ARCHIVE_DATE) VALUES(?, ?, ?, ?, ?, ?, ?, ?)");
 
 						statement.setString(1, element.getKey());
 						statement.setString(2, element.getSubkey());
@@ -1628,6 +1745,11 @@ public class SQLSikevaDB implements SikevaDB
 				}
 			}
 		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
+	}
 
 	/**
 	 * {@inheritDoc}
@@ -1645,6 +1767,8 @@ public class SQLSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void put(final String key, final String value) throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			//
 			Element element = getElement(key);
@@ -1719,6 +1843,11 @@ public class SQLSikevaDB implements SikevaDB
 				closeQuietly(connection, statement, resultSet);
 			}
 		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
+	}
 
 	/**
 	 * {@inheritDoc}
@@ -1726,6 +1855,8 @@ public class SQLSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void put(final String key, final String subkey, final String value) throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			if (key == null)
 			{
@@ -1813,6 +1944,11 @@ public class SQLSikevaDB implements SikevaDB
 				}
 			}
 		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
+	}
 
 	/**
 	 * {@inheritDoc}
@@ -1820,6 +1956,8 @@ public class SQLSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void remove(final String key) throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			if (key == null)
 			{
@@ -1866,6 +2004,11 @@ public class SQLSikevaDB implements SikevaDB
 				}
 			}
 		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
+	}
 
 	/**
 	 * {@inheritDoc}
@@ -1883,6 +2026,8 @@ public class SQLSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void remove(final String key, final String subkey) throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			if (key == null)
 			{
@@ -1925,6 +2070,11 @@ public class SQLSikevaDB implements SikevaDB
 				}
 			}
 		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (opened).");
+		}
+	}
 
 	/**
 	 * {@inheritDoc}
@@ -1932,6 +2082,8 @@ public class SQLSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void removeMany(final String key, final String... subkeys) throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			if (key == null)
 			{
@@ -1978,6 +2130,11 @@ public class SQLSikevaDB implements SikevaDB
 				}
 			}
 		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
+	}
 
 	/**
 	 * {@inheritDoc}
@@ -1988,6 +2145,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		logger.info("renameKey starting... [{}][{}]", oldKey, newKey);
 
+		if (isOpened())
+		{
 			if (oldKey == null)
 			{
 				throw new IllegalArgumentException("OldKey is null.");
@@ -2024,6 +2183,11 @@ public class SQLSikevaDB implements SikevaDB
 					closeQuietly(connection, statement, resultSet);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		logger.info("renameKey done.");
 	}
@@ -2044,6 +2208,8 @@ public class SQLSikevaDB implements SikevaDB
 	 */
 	@Override
 	public void renameSubkey(final String key, final String oldKey, final String newKey) throws SikevaDBException
+	{
+		if (isOpened())
 		{
 			if ((key == null) || (oldKey == null) || (newKey == null))
 			{
@@ -2054,6 +2220,11 @@ public class SQLSikevaDB implements SikevaDB
 				// TODO Auto-generated method stub
 			}
 		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
+	}
 
 	/**
 	 * {@inheritDoc}
@@ -2064,6 +2235,8 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		logger.info("replaceInValue starting... [{}]", key);
 
+		if (isOpened())
+		{
 			//
 			String value = getValue(key);
 
@@ -2075,6 +2248,11 @@ public class SQLSikevaDB implements SikevaDB
 
 			//
 			put(key, value);
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		logger.info("replaceInValue done.");
 	}
@@ -2088,13 +2266,13 @@ public class SQLSikevaDB implements SikevaDB
 	{
 		logger.info("replaceInValues starting... [{}]", key);
 
-		//
+		if (isOpened())
+		{
 			Elements elements = getElements(key);
 
 			long count = 0;
 			for (Element element : elements)
 			{
-			//
 				logger.info(element.getKey() + " (" + element.getSubkey() + ") " + count + "/" + elements.size());
 
 				if (element.getSubkey() != null)
@@ -2115,6 +2293,11 @@ public class SQLSikevaDB implements SikevaDB
 					put(element.getKey(), element.getSubkey(), value);
 				}
 			}
+		}
+		else
+		{
+			throw new SikevaDBException("Invalid database status (closed).");
+		}
 
 		logger.info("replaceInValues done.");
 	}

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

@@ -605,10 +605,11 @@ public class TreeFileSikevaDBTest
 	}
 
 	/**
+	 * @throws SikevaDBException
 	 * 
 	 */
 	@AfterClass
-	public static void afterClass()
+	public static void afterClass() throws SikevaDBException
 	{
 		if (database != null)
 		{