1 /*******************************************************************************
\r
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
\r
3 * in Industry THTH ry.
\r
4 * All rights reserved. This program and the accompanying materials
\r
5 * are made available under the terms of the Eclipse Public License v1.0
\r
6 * which accompanies this distribution, and is available at
\r
7 * http://www.eclipse.org/legal/epl-v10.html
\r
10 * VTT Technical Research Centre of Finland - initial API and implementation
\r
11 *******************************************************************************/
\r
12 package org.simantics.db.common.request;
\r
14 import java.util.HashSet;
\r
15 import java.util.Set;
\r
17 import org.simantics.db.ReadGraph;
\r
18 import org.simantics.db.Resource;
\r
19 import org.simantics.db.exception.DatabaseException;
\r
21 final public class ObjectsWithSupertype extends ResourceRead3<Set<Resource>> {
\r
23 public ObjectsWithSupertype(Resource subject, Resource subrelationOf, Resource instanceOf) {
\r
24 super(subject, subrelationOf, instanceOf);
\r
28 public Set<Resource> perform(ReadGraph graph) throws DatabaseException {
\r
30 Set<Resource> result = new HashSet<Resource>();
\r
31 for(Resource object : graph.getObjects(resource, resource2)) {
\r
32 if(graph.isInheritedFrom(object, resource3)) result.add(object);
\r