此内容没有您所选择的语言版本。

14.5. Referring to identifier property


There are 2 ways to refer to an entity's identifier property:
  • The special property (lowercase) id may be used to reference the identifier property of an entity provided that the entity does not define a non-identifier property named id.
  • If the entity defines a named identifier property, you can use that property name.
References to composite identifier properties follow the same naming rules. If the entity has a non-identifier property named id, the composite identifier property can only be referenced by its defined named. Otherwise, the special id property can be used to reference the identifier property.

Important

Please note that, starting in version 3.2.2, this has changed significantly. In previous versions, id always referred to the identifier property regardless of its actual name. A ramification of that decision was that non-identifier properties named id could never be referenced in Hibernate queries.
返回顶部
Red Hat logoGithubredditYoutubeTwitter

学习

尝试、购买和销售

社区

关于红帽文档

通过我们的产品和服务,以及可以信赖的内容,帮助红帽用户创新并实现他们的目标。 了解我们当前的更新.

让开源更具包容性

红帽致力于替换我们的代码、文档和 Web 属性中存在问题的语言。欲了解更多详情,请参阅红帽博客.

關於紅帽

我们提供强化的解决方案,使企业能够更轻松地跨平台和环境(从核心数据中心到网络边缘)工作。

Theme

© 2025 Red Hat