--- /dev/null
+/*******************************************************************************\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.g2d.element.handler;\r
+\r
+import org.simantics.g2d.element.IElement;\r
+import org.simantics.g2d.element.ElementClass.Single;\r
+\r
+/**\r
+ * A handler for retrieving the parent element of a of an element. Elements can\r
+ * receive a parent when they are grouped.\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+@Single\r
+public interface Parent extends ElementHandler {\r
+\r
+ /**\r
+ * @param element the element to check for a parent element\r
+ * @return <code>null</code> if the specified element has no parent element.\r
+ */\r
+ IElement getParent(IElement element);\r
+\r
+}\r