1 /* 2 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, 20 * CA 94065 USA or visit www.oracle.com if you need additional information or 21 * have any questions. 22 * 23 */ 24 25 package sun.jvm.hotspot.debugger.cdbg; 26 27 import java.util.*; 28 import sun.jvm.hotspot.debugger.*; 29 30 // a comparator used to sort LoadObjects by base address 31 32 public class LoadObjectComparator implements Comparator { 33 public int compare(Object o1, Object o2) { 34 LoadObject lo1 = (LoadObject) o1; 35 LoadObject lo2 = (LoadObject) o2; 36 Address base1 = lo1.getBase(); 37 Address base2 = lo2.getBase(); 38 long diff = base1.minus(base2); 39 return (diff == 0)? 0 : ((diff < 0)? -1 : +1); 40 } 41 42 public boolean equals(Object o) { 43 if (o == null || !(o instanceof LoadObjectComparator)) { 44 return false; 45 } 46 return true; 47 } 48 }