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Java > Open Source Codes > org > apache > bcel > classfile > ConstantFieldref


1 /*
2  * Copyright 2000-2004 The Apache Software Foundation
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  */
17 package org.apache.bcel.classfile;
18
19 import java.io.DataInputStream JavaDoc;
20 import java.io.IOException JavaDoc;
21 import org.apache.bcel.Constants;
22
23 /**
24  * This class represents a constant pool reference to a field.
25  *
26  * @version $Id: ConstantFieldref.java 386056 2006-03-15 11:31:56Z tcurdt $
27  * @author <A HREF="mailto:m.dahm@gmx.de">M. Dahm</A>
28  */
29 public final class ConstantFieldref extends ConstantCP {
30
31     /**
32      * Initialize from another object.
33      */
34     public ConstantFieldref(ConstantFieldref c) {
35         super(Constants.CONSTANT_Fieldref, c.getClassIndex(), c.getNameAndTypeIndex());
36     }
37
38
39     /**
40      * Initialize instance from file data.
41      *
42      * @param file input stream
43      * @throws IOException
44      */
45     ConstantFieldref(DataInputStream JavaDoc file) throws IOException JavaDoc {
46         super(Constants.CONSTANT_Fieldref, file);
47     }
48
49
50     /**
51      * @param class_index Reference to the class containing the Field
52      * @param name_and_type_index and the Field signature
53      */
54     public ConstantFieldref(int class_index, int name_and_type_index) {
55         super(Constants.CONSTANT_Fieldref, class_index, name_and_type_index);
56     }
57
58
59     /**
60      * Called by objects that are traversing the nodes of the tree implicitely
61      * defined by the contents of a Java class. I.e., the hierarchy of Fields,
62      * fields, attributes, etc. spawns a tree of objects.
63      *
64      * @param v Visitor object
65      */
66     public void accept( Visitor v ) {
67         v.visitConstantFieldref(this);
68     }
69 }
70
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