1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 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 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.db.layer0.request;
14 import org.simantics.db.ReadGraph;
15 import org.simantics.db.Resource;
16 import org.simantics.db.common.request.ResourceRead;
17 import org.simantics.db.common.utils.OrderedSetUtils;
18 import org.simantics.db.exception.DatabaseException;
19 import org.simantics.layer0.Layer0;
20 import org.simantics.scl.reflection.OntologyVersions;
22 public class PossibleDiagram extends ResourceRead<Resource> {
24 public PossibleDiagram(Resource component) {
29 public Resource perform(ReadGraph graph) throws DatabaseException {
31 Layer0 l0 = Layer0.getInstance(graph);
32 String uri = OntologyVersions.getInstance().currentVersion("http://www.simantics.org/Modeling-0.0/ComponentToElement");
33 Resource map = graph.getResource(uri);
37 Resource element = graph.getPossibleObject(resource, map);
41 return OrderedSetUtils.getSingleOwnerList(graph, element, l0.OrderedSet);