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1
4 package net.sourceforge.pmd.cpd;
5
6 import java.util.HashMap  ;
7 import java.util.Map ;
8
9 public class TokenEntry implements Comparable {
10
11 public static final TokenEntry EOF = new TokenEntry();
12
13 private String tokenSrcID;
14 private int beginLine;
15 private int index;
16 private int identifier;
17 private int hashCode;
18
19 private final static Map Tokens = new HashMap ();
20 private static int TokenCount = 0;
21
22 private TokenEntry() {
23 this.identifier = 0;
24 this.tokenSrcID = "EOFMarker";
25 }
26
27 public TokenEntry(String image, String tokenSrcID, int beginLine) {
28 Integer i = (Integer ) Tokens.get(image);
29 if (i == null) {
30 i = new Integer (Tokens.size() + 1);
31 Tokens.put(image, i);
32 }
33 this.identifier = i.intValue();
34 this.tokenSrcID = tokenSrcID;
35 this.beginLine = beginLine;
36 this.index = TokenCount++;
37 }
38
39 public static TokenEntry getEOF() {
40 TokenCount++;
41 return EOF;
42 }
43
44 public static void clearImages() {
45 Tokens.clear();
46 TokenCount = 0;
47 }
48
49 public String getTokenSrcID() {
50 return tokenSrcID;
51 }
52
53 public int getBeginLine() {
54 return beginLine;
55 }
56
57 public int getIdentifier() {
58 return this.identifier;
59 }
60
61 public int getIndex() {
62 return this.index;
63 }
64
65 public int hashCode() {
66 return hashCode;
67 }
68
69 public void setHashCode(int hashCode) {
70 this.hashCode = hashCode;
71 }
72
73 public boolean equals(Object o) {
74 if (!(o instanceof TokenEntry)) {
75 return false;
76 }
77 TokenEntry other = (TokenEntry) o;
78 return other.hashCode == hashCode;
79 }
80
81 public int compareTo(Object o) {
82 TokenEntry other = (TokenEntry) o;
83 return getIndex() - other.getIndex();
84 }
85 } |
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