Refactor methods (small).

src/fr/devinsy/util/strings/StringSet.java

@@ -20,7 +20,6 @@ package fr.devinsy.util.strings;
 
 import java.util.Collection;
 import java.util.HashSet;
-import java.util.List;
 
 /**
  * This class is a set of String objects with specific methods. It makes
@@ -127,7 +126,7 @@ public class StringSet extends HashSet<String>
 	/**
 	 * 
 	 */
-	public StringSet append(final StringSet strings)
+	public StringSet add(final StringSet strings)
 	{
 		StringSet result;
 
@@ -235,24 +234,6 @@ public class StringSet extends HashSet<String>
 		return result;
 	}
 
-	/**
-	 * 
-	 */
-	public StringSet put(final Double value)
-	{
-		StringSet result;
-
-		if (value != null)
-		{
-			this.put(String.valueOf(value));
-		}
-
-		result = this;
-
-		//
-		return result;
-	}
-
 	/**
 	 * 
 	 */
@@ -269,19 +250,11 @@ public class StringSet extends HashSet<String>
 	/**
 	 * 
 	 */
-	public StringSet put(final List<String> strings)
+	public StringSet put(final long value)
 	{
 		StringSet result;
 
-		if (strings != null)
+		result = this.put(String.valueOf(value));
-		{
-			for (String string : strings)
-			{
-				this.put(string);
-			}
-		}
-
-		result = this;
 
 		//
 		return result;
@@ -290,11 +263,16 @@ public class StringSet extends HashSet<String>
 	/**
 	 * 
 	 */
-	public StringSet put(final long value)
+	public StringSet put(final Object value)
 	{
 		StringSet result;
 
-		result = this.put(String.valueOf(value));
+		if (value != null)
+		{
+			this.put(value.toString());
+		}
+
+		result = this;
 
 		//
 		return result;
@@ -381,6 +359,28 @@ public class StringSet extends HashSet<String>
 		return result;
 	}
 
+	/**
+	 * 
+	 */
+	public StringSet putNullable(final Object value)
+	{
+		StringSet result;
+
+		if (value == null)
+		{
+			super.add((String) null);
+		}
+		else
+		{
+			this.put(value.toString());
+		}
+
+		result = this;
+
+		//
+		return result;
+	}
+
 	/**
 	 * 
 	 */