Class TagRepositoryImpl

src/main/java/cms/repository/topic/impl/TagRepositoryImpl.java:25–194

标签管理接口实现类

 *
 */
@Repository
@Transactional
public class TagRepositoryImpl extends DaoSupport<Tag> implements TagRepository {
	/**
	 * 根据Id查询标签
	 * @param tagId 标签Id
	 * @return
	 */
	@Transactional(readOnly=true, propagation=Propagation.NOT_SUPPORTED)
	public Tag findById(Long tagId){
		Query query = em.createQuery("select o from Tag o where o.id=?1")
		.setParameter(1, tagId);
		List<Tag> list = query.getResultList();
		for(Tag p : list){
			return p;
		}
		return null;
	}
	/**
	 * 根据Id查询标签
	 * @param tagId 标签Id
	 * @return
	 */
	@Transactional(readOnly=true, propagation=Propagation.NOT_SUPPORTED)
	@Cacheable(value="tagRepositoryImpl_cache",key="'findById_'+#tagId")
	public Tag findById_cache(Long tagId){
		return this.findById(tagId);
	}
	/**
	 * 查询所有标签
	 * @return
	 */
	@Transactional(readOnly=true, propagation=Propagation.NOT_SUPPORTED)
	public List<Tag> findAllTag(){
		Query query = em.createQuery("select o from Tag o order by o.sort desc");
		return query.getResultList();
	}
	
	/**
	 * 查询所有标签 - 缓存
	 * @return
	 */
	@Transactional(readOnly=true,propagation=Propagation.NOT_SUPPORTED)
	@Cacheable(value="tagRepositoryImpl_cache",key="'findAllTag_default'")
	public List<Tag> findAllTag_cache(){
		return this.findAllTag();
	}
	
	/**
	 * 根据标签查询所有父标签
	 * @param tag 标签
	 * @return
	 */
	@Transactional(readOnly=true, propagation=Propagation.NOT_SUPPORTED)
	public List<Tag> findAllParentById(Tag tag){
		List<Tag> tagList = new ArrayList<Tag>();
		//查询所有标签
		if(tag.getParentId() >0){