nulldeltalistener.java

用java 实现的IE browser适合于学者

package com.hnjchina.example.treeviewer;
public class NullDeltaListener implements IDeltaListener {
	protected static NullDeltaListener soleInstance = new NullDeltaListener();
	public static NullDeltaListener getSoleInstance() {
		return soleInstance;
	}
	
	/*
	 * @see IDeltaListener#add(DeltaEvent)
	 */
	public void add(DeltaEvent event) {}

	/*
	 * @see IDeltaListener#remove(DeltaEvent)
	 */
	public void remove(DeltaEvent event) {}

}