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.
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37   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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39   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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45   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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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 method.
62   *
63   * @version $Id: ConstantMethodref.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 ConstantMethodref extends ConstantCP {
67    /***
68     * Initialize from another object.
69     */
70    public ConstantMethodref(ConstantMethodref c) {
71      super(Constants.CONSTANT_Methodref, c.getClassIndex(), c.getNameAndTypeIndex());
72    }
73  
74    /***
75     * Initialize instance from file data.
76     *
77     * @param file input stream
78     * @throws IOException
79     */
80    ConstantMethodref(DataInputStream file) throws IOException
81    {
82      super(Constants.CONSTANT_Methodref, file);
83    }
84  
85    /***
86     * @param class_index Reference to the class containing the method
87     * @param name_and_type_index and the method signature
88     */
89    public ConstantMethodref(int class_index, 
90  			   int name_and_type_index) {
91      super(Constants.CONSTANT_Methodref, 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 methods,
97     * fields, attributes, etc. spawns a tree of objects.
98     *
99     * @param v Visitor object
100    */
101   public void accept(Visitor v) {
102     v.visitConstantMethodref(this);
103   }    
104 }
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