wordtable.java

Boosting算法软件包

package jboost.examples;

import java.io.Serializable;
import java.util.HashMap;
import java.util.Vector;

/** defines a mapping from words to tokens */
public class WordTable implements Serializable{
  
  HashMap map;		// mapping from string to int
  int size;		// # unique words seen so far (starts with 0)
  boolean frozen;		// true if no more tokens
  Vector words;		// mapping from int to string
  public void setFrozen(boolean flag) {frozen=flag;}
  public boolean getFrozen() {return frozen;}
  
  WordTable() {
    map = new HashMap();
    size = 0;
    frozen = false;
    words=new Vector();
  }
  
  public String toString() {
    return "Size: " + size + "\nMap: " + map.toString() + "\nWords: " 
           + words.toString() + "\nfrozen: " + Boolean.toString(frozen);
  }
  
  public void update(WordTable newTable) {
    map= newTable.map;
    size= newTable.size;
    frozen= newTable.frozen;
    words= newTable.words;
  }
  
  // shared WordTable
  public static WordTable globalTable= new WordTable();
  
}