]> gerrit.simantics Code Review - simantics/platform.git/blob - bundles/org.simantics.db.indexing/src/org/simantics/db/indexing/ImmutableIndexedRelationsSearcher.java
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[simantics/platform.git] / bundles / org.simantics.db.indexing / src / org / simantics / db / indexing / ImmutableIndexedRelationsSearcher.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.indexing;
13
14 import org.eclipse.core.runtime.IProgressMonitor;
15 import org.simantics.db.RequestProcessor;
16 import org.simantics.db.Resource;
17 import org.simantics.db.Session;
18
19 /**
20  * @author Tuukka Lehtonen
21  * @author Antti Villberg
22  */
23 public class ImmutableIndexedRelationsSearcher extends IndexedRelationsSearcherBase {
24
25         ImmutableIndexedRelationsSearcher(RequestProcessor session, Resource relation, Resource input) {
26                 super(session, relation, input);
27         }
28
29         @Override
30         String getDescriptor() {
31                 return "IMMU:";
32         }
33         
34     @Override
35     Throwable bestEffortClear(IProgressMonitor monitor, Session session) {
36         return new IllegalStateException("Immutable index cannot be cleared");
37     }
38         
39 }