+/*******************************************************************************\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.diagram.handler;\r
+\r
+import java.util.Collection;\r
+\r
+/**\r
+ * An element assortment is used to categorize diagram contents in diagram\r
+ * cut-copy-paste operations.\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+public interface IElementAssortment {\r
+\r
+ boolean contains(ElementType et);\r
+\r
+ boolean contains(Collection<ElementType> ets);\r
+\r
+ boolean containsAny(Collection<ElementType> ets);\r
+\r
+ int count(ElementType et);\r
+\r
+ public boolean isEmpty();\r
+\r
+}\r