1 package org.apache.bcel.classfile;
2
3 /* ====================================================================
4 * The Apache Software License, Version 1.1
5 *
6 * Copyright (c) 2001 The Apache Software Foundation. All rights
7 * reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. The end-user documentation included with the redistribution,
22 * if any, must include the following acknowledgment:
23 * "This product includes software developed by the
24 * Apache Software Foundation (http://www.apache.org/)."
25 * Alternately, this acknowledgment may appear in the software itself,
26 * if and wherever such third-party acknowledgments normally appear.
27 *
28 * 4. The names "Apache" and "Apache Software Foundation" and
29 * "Apache BCEL" must not be used to endorse or promote products
30 * derived from this software without prior written permission. For
31 * written permission, please contact apache@apache.org.
32 *
33 * 5. Products derived from this software may not be called "Apache",
34 * "Apache BCEL", nor may "Apache" appear in their name, without
35 * prior written permission of the Apache Software Foundation.
36 *
37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
44 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
45 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48 * SUCH DAMAGE.
49 * ====================================================================
50 *
51 * This software consists of voluntary contributions made by many
52 * individuals on behalf of the Apache Software Foundation. For more
53 * information on the Apache Software Foundation, please see
54 * <http://www.apache.org/>.
55 */
56
57 import org.apache.bcel.Constants;
58 import java.io.*;
59
60 /***
61 * This class represents a constant pool reference to a field.
62 *
63 * @version $Id: ConstantFieldref.java,v 1.2 2002/03/11 16:16:35 mdahm Exp $
64 * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
65 */
66 public final class ConstantFieldref extends ConstantCP {
67 /***
68 * Initialize from another object.
69 */
70 public ConstantFieldref(ConstantFieldref c) {
71 super(Constants.CONSTANT_Fieldref, c.getClassIndex(), c.getNameAndTypeIndex());
72 }
73
74 /***
75 * Initialize instance from file data.
76 *
77 * @param file input stream
78 * @throws IOException
79 */
80 ConstantFieldref(DataInputStream file) throws IOException
81 {
82 super(Constants.CONSTANT_Fieldref, file);
83 }
84
85 /***
86 * @param class_index Reference to the class containing the Field
87 * @param name_and_type_index and the Field signature
88 */
89 public ConstantFieldref(int class_index,
90 int name_and_type_index) {
91 super(Constants.CONSTANT_Fieldref, class_index, name_and_type_index);
92 }
93
94 /***
95 * Called by objects that are traversing the nodes of the tree implicitely
96 * defined by the contents of a Java class. I.e., the hierarchy of Fields,
97 * fields, attributes, etc. spawns a tree of objects.
98 *
99 * @param v Visitor object
100 */
101 public void accept(Visitor v) {
102 v.visitConstantFieldref(this);
103 }
104 }
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