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;
15 abstract public class TernaryRead<P1, P2, P3, R> extends BinaryRead<P1, P2, R> {
17 final protected P3 parameter3;
20 public int hashCode() {
21 final int h1 = parameter != null ? parameter.hashCode() : 0;
22 final int h2 = parameter2 != null ? parameter2.hashCode() : 0;
23 final int h3 = parameter3 != null ? parameter3.hashCode() : 0;
24 return 41 * (h1 + 31 * h2) + h3;
28 public boolean equals(Object object) {
31 else if (object == null)
33 else if (getClass() != object.getClass())
35 TernaryRead<?, ?, ?, ?> r = (TernaryRead<?, ?, ?, ?>) object;
36 if(parameter != null) {
37 if(!parameter.equals(r.parameter)) return false;
38 } else if(r.parameter != null) return false;
39 if(parameter2 != null) {
40 if(!parameter2.equals(r.parameter2)) return false;
41 } else if(r.parameter2 != null) return false;
42 if(parameter3 != null) {
43 if(!parameter3.equals(r.parameter3)) return false;
44 } else if(r.parameter3 != null) return false;
48 public TernaryRead(P1 parameter1, P2 parameter2, P3 parameter3) {
49 super(parameter1, parameter2);
50 this.parameter3 = parameter3;