daofactory.java

中国移动系统 给了前台了

package db;

public abstract class DAOFactory
{
    public static final int ORACLE = 1;
    public static final int SQLSERVER = 2;
    public static final int MYSQL = 3;
    /*
    *获得用于操作Operator表的DAO类
    */
    public abstract OperatorDAO getOperatorDAO();
    
    //获得其他的DAO的方法
    public static DAOFactory getDAOFactory(int dbType)
    {
        switch(dbType)
        {
            case ORACLE:
                return new OracleDAOFactory();
            /*
            case SQLSERVER:
                return new SQLDAOFactory();
            case MYSQL:
                return new MySQLDAOFactory();
            */
            default:
                return null;
        }
    }
}