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.primitiverequest;
\r
14 import org.simantics.databoard.binding.Binding;
\r
15 import org.simantics.db.ReadGraph;
\r
16 import org.simantics.db.Resource;
\r
17 import org.simantics.db.common.request.BinaryRead;
\r
18 import org.simantics.db.exception.DatabaseException;
\r
19 import org.simantics.db.request.ReadExt;
\r
20 import org.simantics.db.request.RequestFlags;
\r
22 final public class Value<T> extends BinaryRead<Resource, Binding, T> implements ReadExt {
\r
24 public Value(Resource resource, Binding binding) {
\r
25 super(resource, binding);
\r
29 public T perform(ReadGraph graph) throws DatabaseException {
\r
30 return graph.getValue(parameter, parameter2);
\r
34 public boolean isImmutable(ReadGraph graph) throws DatabaseException {
\r
35 return graph.isImmutable(parameter);
\r
39 public int getType() {
\r
40 return RequestFlags.INVALIDATE;
\r