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.iface.value;
33 
34 import org.jf.dexlib2.iface.AnnotationElement;
35 import org.jf.dexlib2.iface.BasicAnnotation;
36 
37 import javax.annotation.Nonnull;
38 import javax.annotation.Nullable;
39 import java.util.Set;
40 
41 /**
42  * This class represents an encoded annotation value.
43  */
44 public interface AnnotationEncodedValue extends EncodedValue, BasicAnnotation {
45     /**
46      * Gets the type of this annotation.
47      *
48      * This will be the type descriptor of the class that defines this annotation.
49      *
50      * @return The type of this annotation
51      */
getType()52     @Nonnull String getType();
53 
54     /**
55      * Gets a set of the name/value elements associated with this annotation.
56      *
57      * The elements in the returned set will be unique by name.
58      *
59      * @return A set of AnnotationElements
60      */
getElements()61     @Nonnull Set<? extends AnnotationElement> getElements();
62 
63     /**
64      * Returns a hashcode for this AnnotationEncodedValue.
65      *
66      * This hashCode is defined to be the following:
67      *
68      * <pre>
69      * {@code
70      * int hashCode = getType().hashCode();
71      * hashCode = hashCode*31 + getElements().hashCode();
72      * }</pre>
73      *
74      * @return The hash code value for this AnnotationEncodedValue
75      */
hashCode()76     @Override int hashCode();
77 
78     /**
79      * Compares this AnnotationEncodedValue to another AnnotationEncodedValue for equality.
80      *
81      * This AnnotationEncodedValue is equal to another AnnotationEncodedValue if all of it's "fields" are equal. That
82      * is, if the return values getType() and getElements() are both equal.
83      *
84      * @param o The object to be compared for equality with this AnnotationEncodedValue
85      * @return true if the specified object is equal to this AnnotationEncodedValue
86      */
equals(@ullable Object o)87     @Override boolean equals(@Nullable Object o);
88 
89     /**
90      * Compare this AnnotationEncodedValue to another EncodedValue.
91      *
92      * The comparison is based on the value of getType() and getElements(), in that order. When
93      * comparing the set of elements, the comparison is done with the semantics of
94      * org.jf.util.CollectionUtils.compareAsSet(), using the natural ordering of AnnotationElement.
95      *
96      * @param o The EncodedValue to compare with this AnnotationEncodedValue
97      * @return An integer representing the result of the comparison
98      */
compareTo(@onnull EncodedValue o)99     @Override int compareTo(@Nonnull EncodedValue o);
100 }
101