在使用Hibernate或者JPA时,我们经常会使用@Where注解实现查询过滤,在实体类上、实体属性上、查询语句上都有应用。
例如:
@Where(clause = "status != -1")
List<SalarySheetEntity> findAllByCreatedByOrderByIdDesc(String login);
@Where(clause = "status != -1") public class SmsAccountEntity extends AbstractAuditingEntity {}
注意:应用在查询时需要注意,不可以应用在count上,注解源码可知:
/** * Where clause to add to the element Entity or target entity of a collection. The clause is written in SQL. * A common use case here is for soft-deletes. * * @author Emmanuel Bernard */ @Target({TYPE, METHOD, FIELD}) @Retention(RUNTIME) public @interface Where { /** * The where-clause predicate. */ String clause(); }