AutoArrayList.java

package com.mycim.valueobject.bas;

import java.util.ArrayList;

/**
 * 用于接收form表单的list
 *
 * @author fanta
 */
public class AutoArrayList extends ArrayList {

    private static final long serialVersionUID = -745994649616595068L;

    private Class itemClass;

    public AutoArrayList(Class itemClass) {
        this.itemClass = itemClass;
    }

    public Object get(int index) {
        try {
            while (index >= size()) {
                add(itemClass.newInstance());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return super.get(index);
    }

}