]> gerrit.simantics Code Review - simantics/platform.git/blob - bundles/org.simantics.db.common/src/org/simantics/db/common/request/StatementsWithRange.java
Fixed multiple issues causing dangling references to discarded queries
[simantics/platform.git] / bundles / org.simantics.db.common / src / org / simantics / db / common / request / StatementsWithRange.java
1 /*******************************************************************************
2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
3  * in Industry THTH ry.
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
8  *
9  * Contributors:
10  *     VTT Technical Research Centre of Finland - initial API and implementation
11  *******************************************************************************/
12 package org.simantics.db.common.request;
13
14 import java.util.HashSet;
15 import java.util.Set;
16
17 import org.simantics.db.ReadGraph;
18 import org.simantics.db.Resource;
19 import org.simantics.db.Statement;
20 import org.simantics.db.exception.DatabaseException;
21
22 final public class StatementsWithRange extends ResourceRead3<Set<Statement>> {
23
24     public StatementsWithRange(Resource subject, Resource subrelationOf, Resource inherits) {
25         super(subject, subrelationOf, inherits);
26     }
27
28     @Override
29     public Set<Statement> perform(ReadGraph graph) throws DatabaseException {
30         
31         Set<Statement> result = new HashSet<Statement>();
32         for(Statement stm : graph.getStatements(resource, resource2)) {
33                 if(graph.isInheritedFrom(stm.getObject(), resource3)) result.add(stm);
34         }
35         return result;
36         
37     }
38
39 }