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Java > Open Source Codes > org > apache > bcel > generic > FieldGenOrMethodGen


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.generic;
18
19 import java.util.ArrayList JavaDoc;
20 import java.util.List JavaDoc;
21 import org.apache.bcel.Constants;
22 import org.apache.bcel.classfile.AccessFlags;
23 import org.apache.bcel.classfile.Attribute;
24
25 /**
26  * Super class for FieldGen and MethodGen objects, since they have
27  * some methods in common!
28  *
29  * @version $Id: FieldGenOrMethodGen.java 410087 2006-05-29 12:12:19Z tcurdt $
30  * @author <A HREF="mailto:m.dahm@gmx.de">M. Dahm</A>
31  */
32 public abstract class FieldGenOrMethodGen extends AccessFlags implements NamedAndTyped, Cloneable JavaDoc {
33
34     protected String JavaDoc name;
35     protected Type type;
36     protected ConstantPoolGen cp;
37     private List JavaDoc attribute_vec = new ArrayList JavaDoc();
38
39
40     protected FieldGenOrMethodGen() {
41     }
42
43
44     public void setType( Type type ) {
45         if (type.getType() == Constants.T_ADDRESS) {
46             throw new IllegalArgumentException JavaDoc("Type can not be " + type);
47         }
48         this.type = type;
49     }
50
51
52     public Type getType() {
53         return type;
54     }
55
56
57     /** @return name of method/field.
58      */
59     public String JavaDoc getName() {
60         return name;
61     }
62
63
64     public void setName( String JavaDoc name ) {
65         this.name = name;
66     }
67
68
69     public ConstantPoolGen getConstantPool() {
70         return cp;
71     }
72
73
74     public void setConstantPool( ConstantPoolGen cp ) {
75         this.cp = cp;
76     }
77
78
79     /**
80      * Add an attribute to this method. Currently, the JVM knows about
81      * the `Code', `ConstantValue', `Synthetic' and `Exceptions'
82      * attributes. Other attributes will be ignored by the JVM but do no
83      * harm.
84      *
85      * @param a attribute to be added
86      */
87     public void addAttribute( Attribute a ) {
88         attribute_vec.add(a);
89     }
90
91
92     /**
93      * Remove an attribute.
94      */
95     public void removeAttribute( Attribute a ) {
96         attribute_vec.remove(a);
97     }
98
99
100     /**
101      * Remove all attributes.
102      */
103     public void removeAttributes() {
104         attribute_vec.clear();
105     }
106
107
108     /**
109      * @return all attributes of this method.
110      */
111     public Attribute[] getAttributes() {
112         Attribute[] attributes = new Attribute[attribute_vec.size()];
113         attribute_vec.toArray(attributes);
114         return attributes;
115     }
116
117
118     /** @return signature of method/field.
119      */
120     public abstract String JavaDoc getSignature();
121
122
123     public Object JavaDoc clone() {
124         try {
125             return super.clone();
126         } catch (CloneNotSupportedException JavaDoc e) {
127             System.err.println(e);
128             return null;
129         }
130     }
131 }
132
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