abstractservicelocatordao.java

hibernate quickly 一书的各章节源代码

package com.manning.hq.ch08;

import net.sf.hibernate.HibernateException;
import net.sf.hibernate.Session;
import net.sf.hibernate.Transaction;

import java.util.List;

/**
 * A layer supertype that handles the common operations for all Data Access Objects.
 */
public abstract class AbstractServiceLocatorDao extends AbstractDao {
    private Session session;
    private Transaction tx;

    public AbstractServiceLocatorDao() {
    }

    protected Session getSession() {
        return session;
    }

    protected Transaction getTx() {
        return tx;
    }

    protected void startOperation() throws HibernateException {
        session = HibernateFactory.openSession();
        tx = session.beginTransaction();
    }
}