add CollectionTools.emptyBag()v201309190527

1 files changed, 10 insertions, 0 deletions

diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/collection/CollectionTools.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/collection/CollectionTools.java
index 6f3439fc74..83e93eef18 100644
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/collection/CollectionTools.java
+++ b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/collection/CollectionTools.java
@@ -18,6 +18,7 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.TreeSet;
 import java.util.Vector;
+import org.eclipse.jpt.common.utility.collection.Bag;
 import org.eclipse.jpt.common.utility.collection.Queue;
 import org.eclipse.jpt.common.utility.collection.Stack;
 import org.eclipse.jpt.common.utility.predicate.Predicate;
@@ -664,6 +665,15 @@ public final class CollectionTools {
 		return set;
 	}
 
+	/**
+	 * Return a bag corresponding to the specified stack, draining the stack
+	 * in the process.
+	 * The specified stack size is a performance hint.
+	 */
+	public static <E> Bag<E> emptyBag() {
+		return EmptyBag.<E>instance();
+	}
+
 
 	// ********** identity bag factory methods **********