myhandler.java

《Java与模式》一书的源代码

package com.javapatterns.observersax;

import java.io.IOException;
import java.io.Writer;
import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;

public class MyHandler implements ContentHandler
{

    private Writer out;

    public MyHandler(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);
        }

    }

    // do-nothing methods
    public void setDocumentLocator(Locator locator) { }

    public void startDocument() { }

    public void endDocument() { }

    public void startPrefixMapping(String prefix,
    String uri) { }

    public void endPrefixMapping(String prefix) { }

    public void startElement(String namespaceURI,
    String localName,
    String qualifiedName, Attributes atts) { }

    public void endElement(String namespaceURI,
    String localName,
    String qualifiedName) { }

    public void ignorableWhitespace(char[] text,
    int start,
    int length) throws SAXException { }

    public void processingInstruction(String target,
    String data) { }

    public void skippedEntity(String name) { }

}