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.modeling.mapping;
14 import org.simantics.db.ReadGraph;
15 import org.simantics.db.Resource;
16 import org.simantics.db.WriteGraph;
17 import org.simantics.db.exception.DatabaseException;
18 import org.simantics.layer0.utils.predicates.UnaryTest;
20 public class Tag extends UnaryTest {
24 public Tag(Resource tag) {
29 public boolean has(ReadGraph g, Resource r) throws DatabaseException {
30 return g.hasStatement(r, tag);
34 public void add(WriteGraph g, Resource r) throws DatabaseException {
35 if(!g.hasStatement(r, tag))
40 public void remove(WriteGraph g, Resource r) throws DatabaseException {