1 /*******************************************************************************
2 * Copyright (c) 2007, 2011 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.browsing.ui.model.modifiers;
14 import org.simantics.browsing.ui.common.ColumnKeys;
15 import org.simantics.browsing.ui.common.ErrorLogger;
16 import org.simantics.browsing.ui.content.Labeler.Modifier;
17 import org.simantics.db.ReadGraph;
18 import org.simantics.db.Resource;
19 import org.simantics.db.Session;
20 import org.simantics.db.Statement;
21 import org.simantics.db.WriteGraph;
22 import org.simantics.db.common.primitiverequest.PossibleAdapter;
23 import org.simantics.db.common.request.WriteRequest;
24 import org.simantics.db.exception.DatabaseException;
25 import org.simantics.db.layer0.adapter.StringModifier;
26 import org.simantics.db.layer0.adapter.StringModifierFactory;
29 * @author Tuukka Lehtonen
31 public class SingleObjectStringPropertyModifierRule implements ModifierRule {
33 private Resource relation;
34 private Resource propertyRelation;
36 public SingleObjectStringPropertyModifierRule(ReadGraph graph, String relationURI, String propertyRelationURI) throws DatabaseException {
37 this.relation = graph.getResource(relationURI);
38 this.propertyRelation = graph.getResource(propertyRelationURI);
42 public boolean isCompatible(Class<?> contentType) {
43 return contentType.equals(Resource.class);
47 public Modifier getModifier(ReadGraph graph, Object content,
48 String columnKey) throws DatabaseException {
49 if(!ColumnKeys.SINGLE.equals(columnKey))
51 if(!(content instanceof Resource))
54 Resource resource_ = (Resource)content;
56 Resource resource = graph.getSingleObject(resource_, relation);
58 final Statement nameStm = graph.getPossibleStatement(resource, propertyRelation);
62 StringModifierFactory smf = graph.getPossibleAdapter(resource, StringModifierFactory.class);
64 final StringModifier sm = smf.createModifier(graph, propertyRelation, nameStm.getObject());
66 return modifierFor(graph.getSession(), sm, nameStm.getObject());
69 return new L0StringModifier(graph.getSession(), resource, propertyRelation, nameStm.getObject());
72 private Modifier modifierFor(final Session session, final StringModifier sm, final Resource valueResource) {
73 return new Modifier() {
75 public String getValue() {
77 return session.syncRequest(new PossibleAdapter<String>(valueResource, String.class));
78 } catch (DatabaseException e) {
79 ErrorLogger.defaultLogError(e);
84 public String isValid(String label) {
85 return sm.isValid(label);
88 public void modify(final String label) {
90 session.syncRequest(new WriteRequest() {
92 public void perform(WriteGraph graph) throws DatabaseException {
93 sm.modify(graph, label);
96 } catch (DatabaseException e) {
97 ErrorLogger.defaultLogError(e);