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.request;
16 public abstract class UnaryRead<P, R> extends GenericReadBase<P, R> {
18 final protected P parameter;
21 public int hashCode() {
22 return parameter != null ? parameter.hashCode() : 0;
26 public boolean equals(Object object) {
29 else if (object == null)
31 else if (getClass() != object.getClass())
33 UnaryRead<?, ?> r = (UnaryRead<?, ?>) object;
34 if(parameter != null) {
35 if(!parameter.equals(r.parameter)) return false;
36 } else if(r.parameter != null) return false;
40 public UnaryRead(P parameter) {
41 this.parameter = parameter;
45 public String toString() {
46 return getClass().getSimpleName() + "$" + parameter;