触发JPA侦听器进行收集字段更改 [英] Firing JPA listeners on collection field change

问题描述

一旦我的实体发生更改，我正在使用EntityListeners(@PreUpdate)执行某些操作. 但是我注意到，实体内部集合的更改不会触发JPA实体侦听器，这是有道理的，因为包含该实体的表并未更改，而多对多表已更改.

I am using EntityListeners (@PreUpdate) to perform certain actions once my entities change. However I noticed that changes of a collection inside an entity does not fire the JPA entity listener, that makes sense because the table containing the entity was not changed, but a many to many table was.

是否有一种方法可以使实体侦听器在发生集合更改时触发?

Is there a way to make the entity listener fire in case of a collection change?

推荐答案

针对版本化的实体触发了侦听器(请参见 https://stackoverflow.com/a/17073342/12039

Listeners are fired for versioned entities (see javax.persistence.Version). Found via this answer: https://stackoverflow.com/a/17073342/12039

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