primarykeyobj.java

基于数据库操作的封装

package org.shaoye.magic;

import java.util.Vector;
import org.shaoye.magic.Column;
import java.io.Serializable;

/**
 * @author zhangt
 *
 * To change this generated comment edit the template variable "typecomment":
 * Window>Preferences>Java>Templates.
 * To enable and disable the creation of type comments go to
 * Window>Preferences>Java>Code Generation.
 */
public class PrimaryKeyObj implements Serializable {

	private Vector _v = new Vector();

	public PrimaryKeyObj() {
	}

	/**
	 *	����һ��������
	 *
	 */

	public void addPrimaryKey(Column _col) {
		_v.add(_col);
	}

	/**
	 *	ɾ��һ��������
	 *
	 */

	public void delPrimaryKey(int i) {
		_v.remove(i);
	}

	/**
	 *	ȡ��һ��������
	 *
	 */

	public Column getPrimaryKey(int i) {
		return (Column)_v.get(i);
	}

	/**
	 *	������
	 *
	 */

	public int getPrimaryKeySize() {
		return _v.size();
	}

        public void clear(){
           _v.clear();
        }


}