unsubscription.java

发布/订阅系统路由重配算法,可应用于ad hoc环境

/*
 * Created on May 4, 2005
 *
 * To change the template for this generated file go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
package com;

import java.util.*;

import broker.Filter;

/**
 * @author parzy
 *
 * To change the template for this generated type comment go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
public class Unsubscription extends Subscription implements Cloneable {

	private LinkedList uncoveredFilters = new LinkedList();

	public Unsubscription(Filter filter){
		super(filter);
	}
	
	public Unsubscription(Filter filter, int type){
		super(filter, type);
	}
	
	public Unsubscription(Filter filter, Collection uncoveredFilters){
		super(filter);
		this.uncoveredFilters.addAll(uncoveredFilters);
	}
	
	public Unsubscription(Filter filter, Collection uncoveredFilters, int type){
		super(filter, type);
		this.uncoveredFilters.addAll(uncoveredFilters);
	}
	
	public Collection getUncoveredFilters(){
		return uncoveredFilters;
	}
	
	public void addUncoveredFilter(Filter filter){
		uncoveredFilters.add(filter);
	}
	
	public Object clone(){
		Unsubscription u; // the cloned unsubscription
		LinkedList l;     // a deep copy of the uncovered filter list
		u = (Unsubscription)super.clone();
		l = new LinkedList();
		l.addAll(u.getUncoveredFilters());
		u.uncoveredFilters = l;
		return u;
	}	
	
}