1 /*******************************************************************************
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2 * Copyright (c) 2007, 2013 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.objmap.graph.rules;
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14 import org.apache.log4j.Logger;
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15 import org.simantics.db.ReadGraph;
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16 import org.simantics.db.WriteGraph;
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17 import org.simantics.objmap.backward.IBackwardMapping;
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18 import org.simantics.objmap.bidirectional.IBidirectionalMappingRule;
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19 import org.simantics.objmap.exceptions.MappingException;
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20 import org.simantics.objmap.forward.IForwardMapping;
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21 import org.simantics.objmap.graph.rules.domain.IDomainAccessor;
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22 import org.simantics.objmap.graph.rules.range.IRangeAccessor;
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28 * A rule that synchronizes collection of elements between
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29 * domain and range accessors. Elements are mapped from
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30 * between domain and range during the synchronization.
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31 * @author Hannu Niemistö
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33 public class MappedElementRule<Domain, Range> implements IBidirectionalMappingRule<Domain, Range> {
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35 static Logger LOGGER = Logger.getLogger("org.simantics.objmap");
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37 IDomainAccessor<Domain,Domain> domainAccessor;
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38 IRangeAccessor<Range,Range> rangeAccessor;
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40 public MappedElementRule(IDomainAccessor<Domain,Domain> domainAccessor,
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41 IRangeAccessor<Range,Range> rangeAccessor) {
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42 this.domainAccessor = domainAccessor;
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43 this.rangeAccessor = rangeAccessor;
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47 public boolean updateDomain(WriteGraph g, IBackwardMapping<Domain, Range> map,
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48 Domain domainElement, Range rangeElement)
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49 throws MappingException {
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50 LOGGER.info(" MappedElementRule.updateDomain");
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51 Range value = rangeAccessor.get(rangeElement);
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52 Domain mappedValue = value == null ? null : map.inverseMap(g, value);//map.inverseGet(value);
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53 return domainAccessor.set(g, domainElement, mappedValue);
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57 public boolean updateRange(ReadGraph g, IForwardMapping<Domain, Range> map,
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58 Domain domainElement, Range rangeElement)
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59 throws MappingException {
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60 LOGGER.info(" MappedElementRule.updateRange");
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61 Domain value = domainAccessor.get(g, domainElement);
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62 Range mappedValue = value == null ? null : map.map(g, value);////map.get(value);
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63 return rangeAccessor.set(rangeElement, mappedValue);
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66 public void createDomain(WriteGraph g, IBackwardMapping<Domain,Range> map, Domain domainElement, Range rangeElement) throws MappingException {
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67 updateDomain(g, map, domainElement, rangeElement);
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70 public void createRange(ReadGraph g, IForwardMapping<Domain,Range> map, Domain domainElement, Range rangeElement) throws MappingException {
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71 updateRange(g, map, domainElement, rangeElement);
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