textextractor.java

java与模式 一书的源码

package com.javapatterns.observersax;

import org.xml.sax.*;
import org.xml.sax.helpers.DefaultHandler;
import java.io.*;


public class TextExtractor extends DefaultHandler  {

  private Writer out;
  
  public TextExtractor(Writer out) {
    this.out = out;   
  }
    
  public void characters(char[] text, int start, int length)
   throws SAXException {
    try {
      out.write(text, start, length); 
    }
    catch (IOException e) {
      throw new SAXException(e);   
    }
  }

}