AttSignature.java revision 99409883d9c4c0ffb49b070ce307bb33a9dfe9f1 
1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.dx.cf.attrib;
18
19import com.android.dx.rop.cst.CstUtf8;
20
21/**
22 * Attribute class for standards-track {@code Signature} attributes.
23 */
24public final class AttSignature extends BaseAttribute {
25    /** {@code non-null;} attribute name for attributes of this type */
26    public static final String ATTRIBUTE_NAME = "Signature";
27
28    /** {@code non-null;} the signature string */
29    private final CstUtf8 signature;
30
31    /**
32     * Constructs an instance.
33     *
34     * @param signature {@code non-null;} the signature string
35     */
36    public AttSignature(CstUtf8 signature) {
37        super(ATTRIBUTE_NAME);
38
39        if (signature == null) {
40            throw new NullPointerException("signature == null");
41        }
42
43        this.signature = signature;
44    }
45
46    /** {@inheritDoc} */
47    public int byteLength() {
48        return 8;
49    }
50
51    /**
52     * Gets the signature string.
53     *
54     * @return {@code non-null;} the signature string
55     */
56    public CstUtf8 getSignature() {
57        return signature;
58    }
59}
60