BaseParameterAnnotations.java revision f6c387128427e121477c1b32ad35cdcaa5101ba3 
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.annotation.AnnotationsList;
20import com.android.dx.util.MutabilityException;
21
22/**
23 * Base class for parameter annotation list attributes.
24 */
25public abstract class BaseParameterAnnotations extends BaseAttribute {
26    /** non-null; list of annotations */
27    private final AnnotationsList parameterAnnotations;
28
29    /** >= 0; attribute data length in the original classfile (not
30     * including the attribute header) */
31    private final int byteLength;
32
33    /**
34     * Constructs an instance.
35     *
36     * @param attributeName non-null; the name of the attribute
37     * @param parameterAnnotations non-null; the annotations
38     * @param byteLength >= 0; attribute data length in the original
39     * classfile (not including the attribute header)
40     */
41    public BaseParameterAnnotations(String attributeName,
42            AnnotationsList parameterAnnotations, int byteLength) {
43        super(attributeName);
44
45        try {
46            if (parameterAnnotations.isMutable()) {
47                throw new MutabilityException(
48                        "parameterAnnotations.isMutable()");
49            }
50        } catch (NullPointerException ex) {
51            // Translate the exception.
52            throw new NullPointerException("parameterAnnotations == null");
53        }
54
55        this.parameterAnnotations = parameterAnnotations;
56        this.byteLength = byteLength;
57    }
58
59    /** {@inheritDoc} */
60    public final int byteLength() {
61        // Add six for the standard attribute header.
62        return byteLength + 6;
63    }
64
65    /**
66     * Gets the list of annotation lists associated with this instance.
67     *
68     * @return non-null; the list
69     */
70    public final AnnotationsList getParameterAnnotations() {
71        return parameterAnnotations;
72    }
73}
74