我想在findOne方法中添加“Cacheable”注释,并在删除或发生方法时逐出缓存。
我该怎么做?
答案 0 :(得分:12)
public interface CachingDao<T, ID extends Serializable> extends JpaRepository<T, ID>, JpaSpecificationExecutor<T> {
@Cacheable(value = "myCache")
T findOne(ID id);
@Cacheable(value = "myCache")
List<T> findAll();
@Cacheable(value = "myCache")
Page<T> findAll(Pageable pageable);
....
@CacheEvict(value = "myCache", allEntries = true)
<S extends T> S save(S entity);
....
@CacheEvict(value = "myCache", allEntries = true)
void delete(ID id);
}
答案 1 :(得分:6)
我认为@7的答案基本上是正确的,但有2个缺失点:
我们无法定义通用接口,我担心我们必须单独声明每个具体接口,因为注释不能被继承,我们需要为每个存储库设置不同的缓存名称。
save
和delete
应为CachePut
,findAll
应为Cacheable
和CacheEvict
public interface CacheRepository extends CrudRepository<T, String> {
@Cacheable("cacheName")
T findOne(String name);
@Cacheable("cacheName")
@CacheEvict(value = "cacheName", allEntries = true)
Iterable<T> findAll();
@Override
@CachePut("cacheName")
T save(T entity);
@Override
@CacheEvict("cacheName")
void delete(String name);
}
答案 2 :(得分:4)
我通过以下方式解决了这个问题并且工作正常
public interface BookRepositoryCustom {
Book findOne(Long id);
}
public class BookRepositoryImpl extends SimpleJpaRepository<Book,Long> implements BookRepositoryCustom {
@Inject
public BookRepositoryImpl(EntityManager entityManager) {
super(Book.class, entityManager);
}
@Cacheable(value = "books", key = "#id")
public Book findOne(Long id) {
return super.findOne(id);
}
}
public interface BookRepository extends JpaRepository<Book,Long>, BookRepositoryCustom {
}
答案 3 :(得分:2)
尝试提供MyCRUDRepository(接口和实现),如下所述:Adding custom behaviour to all repositories。然后,您可以覆盖并添加这些方法的注释:
findOne(ID id)
delete(T entity)
delete(Iterable<? extends T> entities)
deleteAll()
delete(ID id)