scolebourne 2003/01/15 12:37:22
Modified: collections/src/java/org/apache/commons/collections
ComparatorUtils.java
Log:
Add access method for new BooleanComparator
Revision Changes Path
1.6 +17 -0
jakarta-commons/collections/src/java/org/apache/commons/collections/ComparatorUtils.java
Index: ComparatorUtils.java
===================================================================
RCS file:
/home/cvs/jakarta-commons/collections/src/java/org/apache/commons/collections/ComparatorUtils.java,v
retrieving revision 1.5
retrieving revision 1.6
diff -u -r1.5 -r1.6
--- ComparatorUtils.java 17 Aug 2002 22:17:53 -0000 1.5
+++ ComparatorUtils.java 15 Jan 2003 20:37:22 -0000 1.6
@@ -56,6 +56,7 @@
import java.util.Collection;
import java.util.Comparator;
+import org.apache.commons.collections.comparators.BooleanComparator;
import org.apache.commons.collections.comparators.ComparableComparator;
import org.apache.commons.collections.comparators.ComparatorChain;
import org.apache.commons.collections.comparators.NullComparator;
@@ -171,6 +172,22 @@
return new ReverseComparator(comparator);
}
+ /**
+ * Gets a Comparator that can sort Boolean objects.
+ * <p>
+ * The parameter specifies whether true or false is sorted first.
+ * <p>
+ * The comparator throws NullPointerException if a null value is compared.
+ *
+ * @param trueFirst when <code>true</code>, sort
+ * <code>true</code> {@link Boolean}s before
+ * <code>false</code> {@link Boolean}s.
+ * @return a comparator that sorts booleans
+ */
+ public static Comparator booleanComparator(boolean trueFirst) {
+ return BooleanComparator.getBooleanComparator(trueFirst);
+ }
+
/**
* Gets a Comparator that controls the comparison of <code>null</code> values.
* <p>
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