1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.db.layer0.util;
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14 import org.simantics.db.Resource;
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15 import org.simantics.db.WriteGraph;
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16 import org.simantics.db.exception.DatabaseException;
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17 import org.simantics.layer0.Layer0;
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20 * TODO: is this useful? Doesn't seem to be used.
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22 public class RelationUtils {
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24 public static Resource[] createRelation(WriteGraph g, String name, String inverseName, Resource baseRelation) throws DatabaseException {
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25 Layer0 b = Layer0.getInstance(g);
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26 Resource newRelation = g.newResource();
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27 g.claim(newRelation, b.SubrelationOf, baseRelation);
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29 g.claimLiteral(newRelation,b.HasName, name);
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30 Resource newInverse = g.newResource();
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31 g.claim(newInverse, b.SubrelationOf, g.getInverse(baseRelation));
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32 g.claim(newRelation, b.InverseOf, newInverse);
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33 if (inverseName != null)
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34 g.claimLiteral(newInverse, b.HasName,inverseName);
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36 return new Resource[] {newRelation, newInverse};
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