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Java > Open Source Codes > com > puppycrawl > tools > checkstyle > bcel > classfile > FieldDefinition


1 //Tested with BCEL-5.1
2 //http://jakarta.apache.org/builds/jakarta-bcel/release/v5.1/
3
4 package com.puppycrawl.tools.checkstyle.bcel.classfile;
5
6 import java.util.HashSet JavaDoc;
7 import java.util.Set JavaDoc;
8
9 import org.apache.bcel.classfile.Field;
10
11 import com.puppycrawl.tools.checkstyle.bcel.generic.FieldReference;
12 import com.puppycrawl.tools.checkstyle.bcel.generic.PUTFIELDReference;
13 import com.puppycrawl.tools.checkstyle.bcel.generic.PUTSTATICReference;
14
15 /**
16  * Contains the definition of a Field and its references.
17  * @author Rick Giles
18  */
19 public class FieldDefinition
20     extends FieldOrMethodDefinition
21 {
22     /** the GET references for the Field */
23     private final Set JavaDoc mGetReferences = new HashSet JavaDoc();
24
25     /** the PUT references for the FSield */
26     private final Set JavaDoc mPutReferences = new HashSet JavaDoc();
27
28     /**
29      * Creates a <code>FieldDefinition</code> for a Field.
30      * @param aField the Field.
31      */
32     public FieldDefinition(Field aField)
33     {
34         super(aField);
35     }
36
37     /**
38      * Returns the Field for this definition.
39      * @return the Field for this definition.
40      */
41     public Field getField()
42     {
43         return (Field) getFieldOrMethod();
44     }
45
46     /**
47      * Determines the number of read, or GET, references to the Field.
48      * @return the number of read references to the Field.
49      */
50     public int getReadReferenceCount()
51     {
52         return mGetReferences.size();
53     }
54
55     /**
56      * Determines the number of write, or PUT, references to the Field.
57      * @return the number of write references to the Field.
58      */
59     public int getWriteReferenceCount()
60     {
61         return mPutReferences.size();
62     }
63
64     /**
65      * Determines the total number of references to the Field.
66      * @return the number of references to the Field.
67      */
68     public int getReferenceCount()
69     {
70         return getReadReferenceCount() + getWriteReferenceCount();
71     }
72
73     /**
74      * Adds a reference to the Field.
75      * @param aFieldRef the reference.
76      */
77     public void addReference(FieldReference aFieldRef)
78     {
79         // TODO Polymorphize
80 if ((aFieldRef instanceof PUTFIELDReference)
81             || (aFieldRef instanceof PUTSTATICReference))
82         {
83             mPutReferences.add(aFieldRef);
84         }
85         else {
86             mGetReferences.add(aFieldRef);
87         }
88     }
89 }
90
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