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.common.primitiverequest;
14 import org.simantics.db.AsyncReadGraph;
15 import org.simantics.db.Resource;
16 import org.simantics.db.procedure.AsyncProcedure;
17 import org.simantics.db.request.AsyncRead;
19 final public class PossibleUniqueAdapter<T> implements AsyncRead<T> {
21 final private Resource resource;
22 final private Class<T> clazz;
25 public int hashCode() {
26 return resource.hashCode() + 31 * clazz.hashCode();
30 public boolean equals(Object object) {
33 else if (object == null)
35 else if (getClass() != object.getClass())
37 PossibleUniqueAdapter<?> r = (PossibleUniqueAdapter<?>)object;
38 return resource.equals(r.resource) && clazz.equals(r.clazz);
42 public int threadHash() {
47 public int getFlags() {
51 public PossibleUniqueAdapter(Resource resource, Class<T> clazz) {
52 this.resource = resource;
57 public void perform(AsyncReadGraph graph, AsyncProcedure<T> procedure) {
59 graph.forPossibleUniqueAdapted(resource, clazz, procedure);