import org.jivesoftware.smackx.pubsub.listener.ItemDeleteListener; //导入依赖的package包/类
/**
 * Register an listener for item delete events.  This listener
 * gets called whenever an item is deleted from the node.
 * 
 * @param listener The handler for the event
 */
public void addItemDeleteListener(ItemDeleteListener listener)
{
	StanzaListener delListener = new ItemDeleteTranslator(listener); 
	itemDeleteToListenerMap.put(listener, delListener);
	EventContentFilter deleteItem = new EventContentFilter(EventElementType.items.toString(), "retract");
	EventContentFilter purge = new EventContentFilter(EventElementType.purge.toString());
	
	con.addSyncStanzaListener(delListener, new OrFilter(deleteItem, purge));
}
 

import org.jivesoftware.smackx.pubsub.listener.ItemDeleteListener; //导入依赖的package包/类
/**
 * Unregister a listener for item delete events.
 * 
 * @param listener The handler to unregister
 */
public void removeItemDeleteListener(ItemDeleteListener listener)
{
	StanzaListener conListener = itemDeleteToListenerMap .remove(listener);
	
	if (conListener != null)
		con.removeSyncStanzaListener(conListener);
}
 

import org.jivesoftware.smackx.pubsub.listener.ItemDeleteListener; //导入依赖的package包/类
/**
 * Register an listener for item delete events.  This listener
 * gets called whenever an item is deleted from the node.
 * 
 * @param listener The handler for the event
 */
public void addItemDeleteListener(ItemDeleteListener listener)
{
	PacketListener delListener = new ItemDeleteTranslator(listener); 
	itemDeleteToListenerMap.put(listener, delListener);
	EventContentFilter deleteItem = new EventContentFilter(EventElementType.items.toString(), "retract");
	EventContentFilter purge = new EventContentFilter(EventElementType.purge.toString());
	
	con.addPacketListener(delListener, new OrFilter(deleteItem, purge));
}
 

import org.jivesoftware.smackx.pubsub.listener.ItemDeleteListener; //导入依赖的package包/类
/**
 * Unregister a listener for item delete events.
 * 
 * @param listener The handler to unregister
 */
public void removeItemDeleteListener(ItemDeleteListener listener)
{
	PacketListener conListener = itemDeleteToListenerMap .remove(listener);
	
	if (conListener != null)
		con.removePacketListener(conListener);
}
 

import org.jivesoftware.smackx.pubsub.listener.ItemDeleteListener; //导入依赖的package包/类
/**
 * Register an listener for item delete events. This listener gets called
 * whenever an item is deleted from the node.
 * 
 * @param listener
 *            The handler for the event
 */
public void addItemDeleteListener(ItemDeleteListener listener) {
	PacketListener delListener = new ItemDeleteTranslator(listener);
	itemDeleteToListenerMap.put(listener, delListener);
	EventContentFilter deleteItem = new EventContentFilter(
			EventElementType.items.toString(), "retract");
	EventContentFilter purge = new EventContentFilter(
			EventElementType.purge.toString());

	con.addPacketListener(delListener, new OrFilter(deleteItem, purge));
}
 

import org.jivesoftware.smackx.pubsub.listener.ItemDeleteListener; //导入依赖的package包/类
/**
 * Unregister a listener for item delete events.
 * 
 * @param listener
 *            The handler to unregister
 */
public void removeItemDeleteListener(ItemDeleteListener listener) {
	PacketListener conListener = itemDeleteToListenerMap.remove(listener);

	if (conListener != null)
		con.removePacketListener(conListener);
}
 

import org.jivesoftware.smackx.pubsub.listener.ItemDeleteListener; //导入依赖的package包/类
public ItemDeleteTranslator(ItemDeleteListener eventListener)
{
	listener = eventListener;
}
 

import org.jivesoftware.smackx.pubsub.listener.ItemDeleteListener; //导入依赖的package包/类
public ItemDeleteTranslator(ItemDeleteListener eventListener) {
	listener = eventListener;
}