JpaDaoSupport 被删除以后 Object ret = getJpaTemplate().execute(new JpaCallback()怎么升级?

[dd121011]

public int batchUpdate(final String jpql, final Object[] params) {
		    Object ret = getJpaTemplate().execute(new JpaCallback()
		    {
		      public Object doInJpa(EntityManager em) throws PersistenceException {
		        Query query = em.createQuery(jpql);
		        int parameterIndex = 1;
		        if ((params != null) && (params.length > 0)) {
		          for (Object obj : params) {
		            query.setParameter(parameterIndex++, obj);
		          }
		        }
		        query.setHint("org.hibernate.cacheable", Boolean.valueOf(true));
		        return Integer.valueOf(query.executeUpdate());
		      }
		    });
		    return ((Integer)ret).intValue();
		  }

这是以前spirng支持JpaDaoSupport 时候的一小段代码?被删除以后这段代码应该怎么调整?多谢指教

[dd121011]

主要是Object ret = getJpaTemplate().execute(new JpaCallback(){}这一样代码