Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.common / src / org / simantics / browsing / ui / common / property / PropertyComparator.java

diff --git a/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/property/PropertyComparator.java b/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/property/PropertyComparator.java
new file mode 100644 (file)
index 0000000..4b23d7b
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/property/PropertyComparator.java
@@ -0,0 +1,34 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.browsing.ui.common.property;\r
+\r
+import java.util.Comparator;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class PropertyComparator implements Comparator<PropertyComparable> {\r
+\r
+    public static final PropertyComparator INSTANCE = new PropertyComparator();\r
+\r
+    @Override\r
+    public int compare(PropertyComparable o1, PropertyComparable o2) {\r
+        int h1 = o1.propertyHashCode();\r
+        int h2 = o2.propertyHashCode();\r
+        if (h1 != h2) {\r
+            return h1-h2;\r
+        }\r
+        boolean equals = o1.propertyEquals(o2);\r
+        return equals ? 0 : -1;\r
+    }\r
+\r
+}
\ No newline at end of file