1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.db.common.request;
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15 abstract public class BinaryAsyncRead<P1, P2, R> extends UnaryAsyncRead<P1, R> {
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17 final protected P2 parameter2;
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20 public int hashCode() {
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21 final int h1 = parameter != null ? parameter.hashCode() : 0;
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22 final int h2 = parameter2 != null ? parameter2.hashCode() : 0;
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23 return h1 + 31 * h2;
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27 public boolean equals(Object object) {
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30 else if (object == null)
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32 else if (getClass() != object.getClass())
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34 BinaryAsyncRead<?, ?, ?> r = (BinaryAsyncRead<?, ?, ?>) object;
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35 if(parameter != null) {
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36 if(!parameter.equals(r.parameter)) return false;
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37 } else if(r.parameter != null) return false;
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38 if(parameter2 != null) {
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39 if(!parameter2.equals(r.parameter2)) return false;
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40 } else if(r.parameter2 != null) return false;
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44 public BinaryAsyncRead(P1 parameter1, P2 parameter2) {
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46 this.parameter2 = parameter2;
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