Add isEmpty so I don't keep fucking up when I assume DSet is a Collection

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@6620 542714f4-19e9-0310-aa3c-eee0fc999fb1
2011-04-09 01:31:23 +00:00
parent 018823edf6
commit 7d9366a0d2
1 changed files with 8 additions and 0 deletions
@@ -152,6 +152,14 @@ public class DSet<E extends DSet.Entry>
    {
    }

+    /**
+     * Returns <tt>true</tt> if this set contains no entries.
+     */
+    public boolean isEmpty ()
+    {
+        return _size == 0;
+    }
+
    /**
     * Returns the number of entries in this set.
     */