daofactory.java

java设计模式的工厂模式

package factory.app;


public class DAOFactory {
	private DAOFactory(){		
	}
	
	private static DAOFactory bf = new DAOFactory();
	
	public static DAOFactory getInstance(){
		return bf;
	}
	
	public DAOInterface getDAO(){
		return new HibernateDAOImpl();
	}
	
}