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 
32 package org.jf.dexlib2.base.reference;
33 
34 import org.jf.dexlib2.iface.reference.FieldReference;
35 
36 import javax.annotation.Nonnull;
37 import javax.annotation.Nullable;
38 
39 public abstract class BaseFieldReference implements FieldReference {
40     @Override
hashCode()41     public int hashCode() {
42         int hashCode = getDefiningClass().hashCode();
43         hashCode = hashCode*31 + getName().hashCode();
44         return hashCode*31 + getType().hashCode();
45     }
46 
47     @Override
equals(@ullable Object o)48     public boolean equals(@Nullable Object o) {
49         if (o instanceof FieldReference) {
50             FieldReference other = (FieldReference)o;
51             return getDefiningClass().equals(other.getDefiningClass()) &&
52                    getName().equals(other.getName()) &&
53                    getType().equals(other.getType());
54 
55         }
56         return false;
57     }
58 
59     @Override
compareTo(@onnull FieldReference o)60     public int compareTo(@Nonnull FieldReference o) {
61         int res = getDefiningClass().compareTo(o.getDefiningClass());
62         if (res != 0) return res;
63         res = getName().compareTo(o.getName());
64         if (res != 0) return res;
65         return getType().compareTo(o.getType());
66     }
67 }
68