1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 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.layer0.utils.property.providers;
14 import java.util.Collection;
16 import org.simantics.db.ReadGraph;
17 import org.simantics.db.Resource;
18 import org.simantics.db.WriteGraph;
19 import org.simantics.db.exception.DatabaseException;
22 public interface IPropertyProvider {
24 Object get(ReadGraph graph, Resource resource, Resource... relations) throws DatabaseException;
26 void set(WriteGraph graph, Object value, Resource resource, Resource... relations) throws DoesNotHaveProperty, DatabaseException;
28 Collection<Resource[]> provides(ReadGraph graph);
32 public interface IPropertyProvider {
33 IProperty getProperty(String name);
34 IProperty getProperty(Resource resource);
35 Collection<IProperty> getProperties();
38 public interface IProperty {
40 Object get(ReadGraph graph, Resource subject);
41 void set(WriteGraph graph, Resource subject, Object value);
44 public class SimpleProperty implements IProperty {
48 public Object get(ReadGraph graph, Resource subject) {
49 return graph.getRelatedValue(subject, relation);
53 public void set(WriteGraph graph, Resource subject, Object value) {
54 // TODO Auto-generated method stub