1/*
2 * reserved comment block
3 * DO NOT REMOVE OR ALTER!
4 */
5/*
6 * Licensed to the Apache Software Foundation (ASF) under one or more
7 * contributor license agreements.  See the NOTICE file distributed with
8 * this work for additional information regarding copyright ownership.
9 * The ASF licenses this file to You under the Apache License, Version 2.0
10 * (the "License"); you may not use this file except in compliance with
11 * the License.  You may obtain a copy of the License at
12 *
13 *      http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 */
21
22package com.sun.org.apache.bcel.internal.classfile;
23
24import java.io.DataInput;
25import java.io.DataOutputStream;
26import java.io.IOException;
27
28import com.sun.org.apache.bcel.internal.Const;
29
30/**
31 * Represents the default value of a annotation for a method info
32 *
33 * @version $Id: AnnotationDefault 1 2005-02-13 03:15:08Z dbrosius $
34 * @since 6.0
35 */
36public class AnnotationDefault extends Attribute {
37
38    private ElementValue default_value;
39
40    /**
41     * @param name_index    Index pointing to the name <em>Code</em>
42     * @param length        Content length in bytes
43     * @param input         Input stream
44     * @param constant_pool Array of constants
45     */
46    AnnotationDefault(final int name_index, final int length, final DataInput input, final ConstantPool constant_pool) throws IOException {
47        this(name_index, length, (ElementValue) null, constant_pool);
48        default_value = ElementValue.readElementValue(input, constant_pool);
49    }
50
51    /**
52     * @param name_index    Index pointing to the name <em>Code</em>
53     * @param length        Content length in bytes
54     * @param defaultValue  the annotation's default value
55     * @param constant_pool Array of constants
56     */
57    public AnnotationDefault(final int name_index, final int length, final ElementValue defaultValue, final ConstantPool constant_pool) {
58        super(Const.ATTR_ANNOTATION_DEFAULT, name_index, length, constant_pool);
59        this.default_value = defaultValue;
60    }
61
62    /**
63     * Called by objects that are traversing the nodes of the tree implicitely
64     * defined by the contents of a Java class. I.e., the hierarchy of methods,
65     * fields, attributes, etc. spawns a tree of objects.
66     *
67     * @param v Visitor object
68     */
69    @Override
70    public void accept(final Visitor v) {
71        v.visitAnnotationDefault(this);
72    }
73
74    /**
75     * @param defaultValue the default value of this methodinfo's annotation
76     */
77    public final void setDefaultValue(final ElementValue defaultValue) {
78        default_value = defaultValue;
79    }
80
81    /**
82     * @return the default value
83     */
84    public final ElementValue getDefaultValue() {
85        return default_value;
86    }
87
88    @Override
89    public Attribute copy(final ConstantPool _constant_pool) {
90        return (Attribute) clone();
91    }
92
93    @Override
94    public final void dump(final DataOutputStream dos) throws IOException {
95        super.dump(dos);
96        default_value.dump(dos);
97    }
98}
99