001 /* 002 Copyright (C) 2002 Laurent Martelli <laurent@aopsys.com> 003 004 This program is free software; you can redistribute it and/or modify 005 it under the terms of the GNU Lesser General Public License as 006 published by the Free Software Foundation; either version 2 of the 007 License, or (at your option) any later version. 008 009 This program is distributed in the hope that it will be useful, 010 but WITHOUT ANY WARRANTY; without even the implied warranty of 011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 012 GNU Lesser General Public License for more details. 013 014 You should have received a copy of the GNU Lesser General Public License 015 along with this program; if not, write to the Free Software 016 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ 017 018 package org.objectweb.jac.util; 019 020 import java.util.Arrays; 021 022 023 /** 024 * This utility class wraps an array of objects and defines an 025 * <code>hashCode()</code> and an <code>equals()</code> 026 */ 027 028 public class ObjectArray { 029 Object [] args; 030 public ObjectArray(Object[] args) { 031 this.args = args; 032 } 033 public Object[] getArray() { 034 return args; 035 } 036 public int hashCode() { 037 int result = 0; 038 for (int i=args.length-1; i>=0; i--) { 039 if (args[i]!=null) 040 result = result ^ args[i].hashCode(); 041 } 042 return result; 043 } 044 public boolean equals(Object o) { 045 return (o instanceof ObjectArray) 046 && Arrays.equals(((ObjectArray)o).args,args); 047 } 048 public String toString() { 049 return Arrays.asList(args).toString(); 050 } 051 }