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package cn.sylinx.hbatis.kit;

import java.io.Serializable;

/**
 * 元组对象
 * 
 * @author han
 *
 */
@SuppressWarnings("serial")
public class Tuple implements Serializable {

	/**
	 * 创建Tuple对象
	 * 
	 * @param args
	 *            Object 对象
	 * @return the Tuple
	 */
	public static Tuple apply(Object... args) {
		return new Tuple(args);
	}

	/**
	 * 数组对象
	 */
	private Object[] items;

	/**
	 * 构造器
	 * 
	 * @param items
	 *            Object对象数组
	 */
	public Tuple(Object[] items) {
		this.items = items;
	}

	public Tuple() {
	}

	public Object[] getItems() {
		return items;
	}

	public void setItems(Object[] items) {
		this.items = items;
	}

	/**
	 * 获取对象
	 * 
	 * @param index
	 *            索引
	 * @return Object对象
	 */
	public Object get(int index) {
		if (index < 0 || items == null || index > items.length - 1) {
			return null;
		}

		return items[index];
	}

	/**
	 * get the object for the index
	 * 
	 * @param index
	 *            index
	 * @return Object
	 */
	@SuppressWarnings("unchecked")
	public  T getObject(int index) {
		Object obj = get(index);
		return (T) obj;
	}

	@SuppressWarnings("unchecked")
	public  T getObject(int index, Class clz) {
		Object obj = get(index);
		return (T) obj;
	}

	/**
	 * get the length
	 * 
	 * @return the length of the tuple
	 */
	public int length() {

		return items == null ? 0 : items.length;
	}
}