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.common.request;
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14 import java.util.Set;
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16 import org.simantics.db.ReadGraph;
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17 import org.simantics.db.Resource;
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18 import org.simantics.db.common.request.ResourceRead;
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19 import org.simantics.db.exception.DatabaseException;
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20 import org.simantics.layer0.Layer0;
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23 * @author Tuukka Lehtonen
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25 public class IsEnumeratedValue extends ResourceRead<Boolean> {
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27 public IsEnumeratedValue(Resource resource) {
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32 public Boolean perform(ReadGraph graph) throws DatabaseException {
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33 return Boolean.valueOf(isEnumeratedValue(graph, resource));
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36 public static boolean isEnumeratedValue(ReadGraph graph, Resource resource) throws DatabaseException {
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37 Set<Resource> types = graph.getTypes(resource);
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38 //if (types.contains(graph.getBuiltins().Boolean))
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40 for (Resource type : types)
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41 if (isEnumeration(graph, type))
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46 public static boolean isEnumeration(ReadGraph graph, Resource type) throws DatabaseException {
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47 return graph.hasStatement(type, Layer0.getInstance(graph).Enumeration, type);
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