1 /*******************************************************************************
2 * Copyright (c) 2013 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * Semantum Oy - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.g2d.elementclass;
14 import org.simantics.g2d.element.ElementClass.Single;
15 import org.simantics.g2d.element.handler.ElementHandler;
18 * A tagging element handler for telling whether an element can be considered a
19 * reference element. This means that the element is not a direct representation of
20 * what it references and the life cycle of the referenced object does not depend
21 * on the life cycle of this element.
23 * This is used as a guiding for diagram copy paste.
25 * @author Tuukka Lehtonen
28 public interface ReferenceElement extends ElementHandler {
30 ReferenceElement INSTANCE = new ReferenceElement() {
31 private static final long serialVersionUID = 305657929840186623L;