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.mapping.constraint;
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14 import gnu.trove.map.hash.TObjectIntHashMap;
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16 import org.simantics.db.Resource;
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17 import org.simantics.mapping.constraint.instructions.IInstruction;
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18 import org.simantics.mapping.constraint.instructions.TripletInstruction;
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19 import org.simantics.mapping.constraint.instructions.TripletObjectQuery;
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20 import org.simantics.mapping.constraint.instructions.TripletPredicateObjectQuery;
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21 import org.simantics.mapping.constraint.instructions.TripletPredicateQuery;
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22 import org.simantics.utils.datastructures.persistent.ImmutableSet;
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24 public class TripletConstraint implements IConstraint {
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29 Resource predicate;
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31 public TripletConstraint(Resource variable0, Resource variable1,
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32 Resource variable2, Resource predicate) {
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33 this.variable0 = variable0;
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34 this.variable1 = variable1;
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35 this.variable2 = variable2;
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36 this.predicate = predicate;
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39 public TripletConstraint(Resource variable0, Resource variable1,
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40 Resource variable2) {
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41 this(variable0, variable1, variable2, null);
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45 public ImmutableSet<Resource> binds() {
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46 return ImmutableSet.of(variable0, variable1, variable2);
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50 public IInstruction createInstruction(
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51 TObjectIntHashMap<Resource> variableIds,
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52 ImmutableSet<Resource> bound) throws TooManyUnboundVariablesException {
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53 int id0 = variableIds.get(variable0);
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54 int id1 = variableIds.get(variable1);
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55 int id2 = variableIds.get(variable2);
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56 if(bound.contains(variable0)) {
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57 if(bound.contains(variable1)) {
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58 if(bound.contains(variable2))
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59 return new TripletInstruction(id0, id1, id2);
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61 return new TripletObjectQuery(id0, id1, id2);
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64 if(bound.contains(variable2))
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65 return new TripletPredicateQuery(id0, id1, id2, predicate);
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67 return new TripletPredicateObjectQuery(id0, id1, id2, predicate);
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71 throw new TooManyUnboundVariablesException();
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76 public int isApplicable(ImmutableSet<Resource> bound) {
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77 if(bound.contains(variable0))
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78 return Integer.MAX_VALUE;
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