discoitembuilder.java

一款即时通讯软件

package edu.ou.kmi.buddyspace.plugins.disco.xml;

/*
 * DiscoItemBuilder.java
 *
 * Project: BuddySpace
 * (C) Copyright Knowledge Media Institute 2003
 *
 *
 * Created on 18 August 2003, 16:48
 */

import java.io.Serializable;
import java.util.*;
import org.jabber.jabberbeans.util.*;
import org.jabber.jabberbeans.*;
import org.jabber.jabberbeans.Extension.*;
import org.xml.sax.AttributeList;
import org.xml.sax.helpers.AttributeListImpl;

/**
 * <code>DiscoItemBuilder</code> is used to construct DiscoItem objects
 *
 * @author  Jiri Komzak, Knowledge Media Institute, Open University, United Kingdom
 */
public class DiscoItemBuilder implements ExtensionBuilder
{
	/** XML base element attributes (including namespace) */
        private AttributeListImpl attributes;

        /*
	 * Construct a new <code>DiscoItemBuilder</code> object 
	 */
	public DiscoItemBuilder()
	{reset();}

	/** reset this builder to a default state, for reuse */
	public void reset() {
		attributes = null;
	}
	
	
        /* returns given attribute */
	public String getAttribute(String name) {
            return (attributes == null || name == null)? null : attributes.getValue(name);
        }
        
        
        /* returns all attribute */
	public AttributeList getAttributes() {
            return attributes;
        }
        
        /* sets attributes */
        public void setAttributes(AttributeList attributes) {
            this.attributes = new AttributeListImpl(attributes);
        }
        
        /*
	 * Build a <code>DiscoItem</code> based on the current builder
	 * state.
	 *
	 * @return <code>DiscoItem</code> based on the current builder
	 * state.
	 */
	public Extension build() throws InstantiationException
	{return new DiscoItem(this);}
}