1/* 2 * Copyright 2012, Google Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32package org.jf.dexlib2.base; 33 34import com.google.common.primitives.Ints; 35import org.jf.dexlib2.iface.Annotation; 36import org.jf.util.CollectionUtils; 37 38import java.util.Comparator; 39 40public abstract class BaseAnnotation implements Annotation { 41 @Override 42 public int hashCode() { 43 int hashCode = getVisibility(); 44 hashCode = hashCode*31 + getType().hashCode(); 45 return hashCode*31 + getElements().hashCode(); 46 } 47 48 @Override 49 public boolean equals(Object o) { 50 if (o instanceof Annotation) { 51 Annotation other = (Annotation)o; 52 return (getVisibility() == other.getVisibility()) && 53 getType().equals(other.getType()) && 54 getElements().equals(other.getElements()); 55 } 56 return false; 57 } 58 59 @Override 60 public int compareTo(Annotation o) { 61 int res = Ints.compare(getVisibility(), o.getVisibility()); 62 if (res != 0) return res; 63 res = getType().compareTo(o.getType()); 64 if (res != 0) return res; 65 return CollectionUtils.compareAsSet(getElements(), o.getElements()); 66 } 67 68 public static final Comparator<? super Annotation> BY_TYPE = new Comparator<Annotation>() { 69 @Override 70 public int compare(Annotation annotation1, Annotation annotation2) { 71 return annotation1.getType().compareTo(annotation2.getType()); 72 } 73 }; 74} 75