abstractnodeinstance.java.svn-base

Fire-Workflow-Engine-All-In-One-20090208 包含全部文档

/**
 * Copyright 2007-2008 陈乜云（非也,Chen Nieyun）
 * All rights reserved. 
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation。
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see http://www.gnu.org/licenses. *
 */
package org.fireflow.kenel.impl;

import java.util.ArrayList;
import java.util.List;

import org.fireflow.kenel.INodeInstance;
import org.fireflow.kenel.ITransitionInstance;
import org.fireflow.kenel.KenelException;
import org.fireflow.kenel.event.INodeInstanceEventListener;
import org.fireflow.kenel.event.NodeInstanceEvent;
import org.fireflow.kenel.plugin.IPlugable;
/**
 * @author chennieyun
 *
 */
public abstract class AbstractNodeInstance implements INodeInstance,IPlugable {

	protected transient List<ITransitionInstance> leavingTransitionInstances = new ArrayList<ITransitionInstance>();
	protected transient List<ITransitionInstance> enteringTransitionInstances = new ArrayList<ITransitionInstance>();
	protected transient List<INodeInstanceEventListener> eventListeners = new ArrayList<INodeInstanceEventListener>();
	/* (non-Javadoc)
	 * @see org.fireflow.kenel.INodeInstance#addLeavingTransitionInstance(org.fireflow.kenel.ITransitionInstance)
	 */
	public void addLeavingTransitionInstance(
			ITransitionInstance transitionInstance) {
		leavingTransitionInstances.add(transitionInstance);

	}

	public List<ITransitionInstance> getLeavingTransitionInstances(){
		return this.leavingTransitionInstances;
	}

	public List<ITransitionInstance> getEnteringTransitionInstances(){
		return this.enteringTransitionInstances;
	}
	public void addEnteringTransitionInstance(ITransitionInstance transitionInstance){
		this.enteringTransitionInstances.add(transitionInstance);
	}
	//TODO 此处是addAll还是直接替换？
	public void setEventListeners(List<INodeInstanceEventListener> listeners){
		eventListeners.addAll(listeners);
	}
	
	public List<INodeInstanceEventListener> getEventListeners(){
		return eventListeners;
	}
	
	public void fireNodeEnteredEvent(NodeInstanceEvent event)throws KenelException{
		for (int i=0;i<this.eventListeners.size();i++){
			INodeInstanceEventListener listener = this.eventListeners.get(i);
			listener.onNodeInstanceEventFired(event);
		}
	}
	public void fireNodeLeavingEvent(NodeInstanceEvent event) throws KenelException{
		for (int i=0;i<this.eventListeners.size();i++){
			INodeInstanceEventListener listener = this.eventListeners.get(i);
			listener.onNodeInstanceEventFired(event);
		}
	}	
}