listquery.java

如果遇到MD5加密文件

package com.easyjf.web.tools;

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

public class ListQuery implements IQuery {
private int begin=0;
private int max=0;
private List list=null;
public ListQuery()
{
	
}
public ListQuery(List l)
{		
	if(l!=null){
	this.list=l;
	this.max=l.size();
	}
}
public void initList(List l)
{
	this.list=l;
	this.max=l.size();
}
	public int getRows(String conditing) {
		
		return (list==null?0:list.size());
	}

	public List getResult(String conditing) {		
		return list.subList(begin,begin+max>list.size()?list.size():begin+max);
	}
	public void setFirstResult(int begin) {		
		this.begin=list.size()<begin?list.size():begin;		
	}
	public void setMaxResults(int max) {
		this.max=max;
	}
	public List getResult(String conditing, int begin, int max) {
		
		return list;
	}	
	public void setParaValues(Collection paraValues) {
		// TODO Auto-generated method stub		
	}
	public static void main(String[] args) {
		List l=new ArrayList();
		for(int i=0;i<50;i++)l.add("test"+i);
		System.out.println(l.size());
		ListQuery lq=new ListQuery(l);
		lq.setFirstResult(49);
		lq.setMaxResults(10);
		List l1=lq.getResult("");
		System.out.println(l1.size());
		for(int i=0;i<l1.size();i++)
			System.out.println(l1.get(i));
		System.out.println(l.size());
	}
}