又一个DynamicDao

模型如下：

@Entity
public class Topic {
	@Id
	@GeneratedValue
	private int id;
	private String title;
	private Date createdAt;
        .......
}

 

   用法如下：

public interface TopicDao {
	@Find
	Topic find(int id);

	@Find(load = true)
	Topic load(int id);

	@Save
	void save(Topic topic);

	@Delete
	void delete(Topic topic);

	@Query("from Topic where title like ?")
	List<Topic> findByTitle(String title);

	@Query("from Topic")
	List<Topic> findAll(@FirstResult int firstResult, @MaxResults	int maxResults);

	@Query("from Topic where id = ?")
	boolean isExist(int id);

	@Query(value = "delete from Topic where createdAt < ?", update = true)
	int deleteByCreatedAt(Date createdAt);

	@Query("select count(*) from Topic")
	long count();
}

 

然后在配置文件中增加如下代码：

<bean id="topicDao" class="com.dynamicDao.DynamicDaoFactoryBean"
		p:daoInterface="com.dynamicDao.dao.TopicDao">