appenditeratorfilter.java

来自「struts 2 核心包 的源码 有错误是难免的」· Java 代码 · 共 69 行

// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi space 
// Source File Name:   AppendIteratorFilter.java

package org.apache.struts2.util;

import com.opensymphony.xwork2.Action;
import java.util.*;

// Referenced classes of package org.apache.struts2.util:
//			IteratorFilterSupport

public class AppendIteratorFilter extends IteratorFilterSupport
	implements Iterator, Action
{

	List iterators;
	List sources;

	public AppendIteratorFilter()
	{
		iterators = new ArrayList();
		sources = new ArrayList();
	}

	public void setSource(Object anIterator)
	{
		sources.add(anIterator);
	}

	public String execute()
	{
		for (int i = 0; i < sources.size(); i++)
		{
			Object source = sources.get(i);
			iterators.add(getIterator(source));
		}

		return "success";
	}

	public boolean hasNext()
	{
		if (iterators.size() > 0)
			return ((Iterator)iterators.get(0)).hasNext();
		else
			return false;
	}

	public Object next()
	{
		Object obj = ((Iterator)iterators.get(0)).next();
		if (iterators.size() > 0 && !((Iterator)iterators.get(0)).hasNext())
			iterators.remove(0);
		return obj;
		Exception exception;
		exception;
		if (iterators.size() > 0 && !((Iterator)iterators.get(0)).hasNext())
			iterators.remove(0);
		throw exception;
	}

	public void remove()
	{
		throw new UnsupportedOperationException();
	}
}