1 /*******************************************************************************
2 * Copyright (c) 2007, 2013 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.objmap.graph.rules;
14 import org.simantics.db.ReadGraph;
15 import org.simantics.db.WriteGraph;
16 import org.simantics.objmap.backward.IBackwardMapping;
17 import org.simantics.objmap.bidirectional.IBidirectionalMappingRule;
18 import org.simantics.objmap.exceptions.MappingException;
19 import org.simantics.objmap.forward.IForwardMapping;
20 import org.simantics.objmap.graph.rules.domain.IDomainAccessor;
21 import org.simantics.objmap.graph.rules.range.IRangeAccessor;
22 import org.slf4j.Logger;
23 import org.slf4j.LoggerFactory;
26 * A rule that synchronizes collection of elements between
27 * domain and range accessors. Elements are mapped from
28 * between domain and range during the synchronization.
29 * @author Hannu Niemistö
31 public class MappedElementRule<Domain, Range> implements IBidirectionalMappingRule<Domain, Range> {
33 static final Logger LOGGER = LoggerFactory.getLogger(MappedElementRule.class);
35 IDomainAccessor<Domain,Domain> domainAccessor;
36 IRangeAccessor<Range,Range> rangeAccessor;
38 public MappedElementRule(IDomainAccessor<Domain,Domain> domainAccessor,
39 IRangeAccessor<Range,Range> rangeAccessor) {
40 this.domainAccessor = domainAccessor;
41 this.rangeAccessor = rangeAccessor;
45 public boolean updateDomain(WriteGraph g, IBackwardMapping<Domain, Range> map,
46 Domain domainElement, Range rangeElement)
47 throws MappingException {
48 LOGGER.trace(" MappedElementRule.updateDomain");
49 Range value = rangeAccessor.get(rangeElement);
50 Domain mappedValue = value == null ? null : map.inverseMap(g, value);//map.inverseGet(value);
51 return domainAccessor.set(g, domainElement, mappedValue);
55 public boolean updateRange(ReadGraph g, IForwardMapping<Domain, Range> map,
56 Domain domainElement, Range rangeElement)
57 throws MappingException {
58 LOGGER.trace(" MappedElementRule.updateRange");
59 Domain value = domainAccessor.get(g, domainElement);
60 Range mappedValue = value == null ? null : map.map(g, value);////map.get(value);
61 return rangeAccessor.set(rangeElement, mappedValue);
64 public void createDomain(WriteGraph g, IBackwardMapping<Domain,Range> map, Domain domainElement, Range rangeElement) throws MappingException {
65 updateDomain(g, map, domainElement, rangeElement);
68 public void createRange(ReadGraph g, IForwardMapping<Domain,Range> map, Domain domainElement, Range rangeElement) throws MappingException {
69 updateRange(g, map, domainElement, rangeElement);