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.db.impl.query;
14 import java.io.InputStream;
16 import org.simantics.db.Resource;
17 import org.simantics.db.Session;
18 import org.simantics.db.VirtualGraph;
19 import org.simantics.db.exception.DatabaseException;
20 import org.simantics.db.exception.ResourceNotFoundException;
21 import org.simantics.db.impl.graph.ReadGraphImpl;
23 public interface QuerySupport extends ResourceTranslator {
27 boolean isImmutable(int id);
28 long getClusterId(int id);
29 int getId(Resource resource);
30 Resource getResource(int id);
32 boolean resume(ReadGraphImpl graph);
33 void dirtyPrimitives();
36 int getSingleInstance(int subject);
37 int getSingleSuperrelation(int subject);
38 int getFunctionalObject(int subject, int predicate);
39 boolean getObjects(ReadGraphImpl graph, int subject, int predicate, IntProcedure procedure) throws DatabaseException;
41 org.simantics.db.DirectStatements getStatements(ReadGraphImpl graph, final int subject, QueryProcessor processor, boolean ignoreVirtual);
43 void getPredicates(ReadGraphImpl graph, int subject, IntProcedure procedure) throws DatabaseException;
44 byte[] getValue(ReadGraphImpl graph, int resource);
45 InputStream getValueStream(ReadGraphImpl graph, int resource);
47 void requestCluster(ReadGraphImpl graph, long clusterId, Runnable r);
49 void ensureLoaded(final ReadGraphImpl graph, final int subject, final int predicate);
50 void ensureLoaded(final ReadGraphImpl graph, final int subject);
51 boolean isLoaded(int subject);
53 int getBuiltin(String uri);
55 @Deprecated // Use SerialisationSupport instead
56 int getRandomAccessReference(String id) throws ResourceNotFoundException;
59 void ceased(int thread);
62 VirtualGraph getProvider(int subject, int predicate, int object);
63 VirtualGraph getProvider(int subject, int predicate);
64 VirtualGraph getValueProvider(int subject);
66 void exit(Throwable t);