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Posted to dev@commons.apache.org by ma...@apache.org on 2002/03/19 06:09:05 UTC
cvs commit: jakarta-commons/collections/src/java/org/apache/commons/collections/comparators ComparableComparator.java
mas 02/03/18 21:09:05
Modified: collections/src/java/org/apache/commons/collections/comparators
ComparableComparator.java
Log:
Added static method to retrieve a shared instance.
Revision Changes Path
1.4 +16 -1 jakarta-commons/collections/src/java/org/apache/commons/collections/comparators/ComparableComparator.java
Index: ComparableComparator.java
===================================================================
RCS file: /home/cvs/jakarta-commons/collections/src/java/org/apache/commons/collections/comparators/ComparableComparator.java,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -r1.3 -r1.4
--- ComparableComparator.java 1 Mar 2002 19:18:49 -0000 1.3
+++ ComparableComparator.java 19 Mar 2002 05:09:05 -0000 1.4
@@ -69,9 +69,24 @@
* of SortedSet and SortedMap.
*
* @author bayard@generationjava.com
- * @version $Id: ComparableComparator.java,v 1.3 2002/03/01 19:18:49 morgand Exp $
+ * @version $Id: ComparableComparator.java,v 1.4 2002/03/19 05:09:05 mas Exp $
*/
public class ComparableComparator implements Comparator,Serializable {
+
+ private static final ComparableComparator instance =
+ new ComparableComparator();
+
+ /**
+ * Return a shared instance of a ComparableComparator. Developers are
+ * encouraged to use the comparator returned from this method instead of
+ * constructing a new instance to reduce allocation and GC overhead when
+ * multiple comparable comparators may be used in the same VM.
+ **/
+ public static ComparableComparator getInstance() {
+ return instance;
+ }
+
+ private static final long serialVersionUID=-291439688585137865L;
public ComparableComparator() {
}
--
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