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/**
* BSD-style license; for more info see http://pmd.sourceforge.net/license.html
*/
package net.sourceforge.pmd.cpd;
import java.util.HashMap;
import java.util.Map;
public class TokenEntry implements Comparable<TokenEntry> {
public static final TokenEntry EOF = new TokenEntry();
private String tokenSrcID;
private int beginLine;
private int index;
private int identifier;
private int hashCode;
private final static Map<String, Integer> Tokens = new HashMap<String, Integer>();
private static int TokenCount = 0;
private TokenEntry() {
this.identifier = 0;
this.tokenSrcID = "EOFMarker";
}
public TokenEntry(String image, String tokenSrcID, int beginLine) {
Integer i = Tokens.get(image);
if (i == null) {
i = Tokens.size() + 1;
Tokens.put(image, i);
}
this.identifier = i.intValue();
this.tokenSrcID = tokenSrcID;
this.beginLine = beginLine;
this.index = TokenCount++;
}
public static TokenEntry getEOF() {
TokenCount++;
return EOF;
}
public static void clearImages() {
Tokens.clear();
TokenCount = 0;
}
public String getTokenSrcID() {
return tokenSrcID;
}
public int getBeginLine() {
return beginLine;
}
public int getIdentifier() {
return this.identifier;
}
public int getIndex() {
return this.index;
}
public int hashCode() {
return hashCode;
}
public void setHashCode(int hashCode) {
this.hashCode = hashCode;
}
public boolean equals(Object o) {
if (!(o instanceof TokenEntry)) {
return false;
}
TokenEntry other = (TokenEntry) o;
return other.hashCode == hashCode;
}
public int compareTo(TokenEntry other) {
return getIndex() - other.getIndex();
}
}
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