如何判断当前tx(Hibernate)中是否删除了Grails/GORM域实例？

Question

我正在寻找Grails(GORM)实例的"isDeleted()"测试:

Project p = ... get persistent entity from somewhere ...
p.delete() // done in some nested logic
... sometime later in the code prior to commit of the tx ...
if (!p.isDeleted()) ... do some more stuff ...

在我的应用程序中,可能删除p的逻辑在其他地方并且传回一个标志或某些东西会很痛苦.

Answer 1

您需要进入Hibernate会话和持久化上下文:

import org.hibernate.engine.Status

boolean deleted = Project.withSession { session ->
   session.persistenceContext.getEntry(p).status == Status.DELETED
}