BaseAnnotationElement.java revision 22c3185bb7c8618437eabe6c597549e0989ec4e6 
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
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29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32package org.jf.dexlib2.base;
33
34import org.jf.dexlib2.iface.AnnotationElement;
35
36import javax.annotation.Nonnull;
37import java.util.Comparator;
38
39public abstract class BaseAnnotationElement implements AnnotationElement {
40    @Override
41    public int hashCode() {
42        int hashCode = getName().hashCode();
43        return hashCode*31 + getValue().hashCode();
44    }
45
46    @Override
47    public boolean equals(Object o) {
48        if (o != null && o instanceof AnnotationElement) {
49            AnnotationElement other = (AnnotationElement)o;
50            return getName().equals(other.getName()) &&
51                   getValue().equals(other.getValue());
52        }
53        return false;
54    }
55
56    @Override
57    public int compareTo(AnnotationElement o) {
58        int res = getName().compareTo(o.getName());
59        if (res != 0) return res;
60        return getValue().compareTo(o.getValue());
61    }
62
63    public static final Comparator<AnnotationElement> COMPARE_BY_NAME = new Comparator<AnnotationElement>() {
64        @Override
65        public int compare(@Nonnull AnnotationElement element1, @Nonnull AnnotationElement element2) {
66            return element1.getName().compareTo(element2.getName());
67        }
68    };
69}
70