java - AUTO 和 COMMIT FlushMode 之间有什么区别？

Question

这个问题已经有答案了:

EntityManger flushmode in JDBC (1 个回答)

已关闭 9 年前。

• entityManager.setFlushMode(FlushModeType.AUTO)
• entityManager.setFlushMode(FlushModeType.COMMIT)

以上两者有什么区别，使用COMMIT有什么好处？冲洗模式？

Answer 1

JPA AUTO causes a flush to the database before a query is executed. Simple operations like find don't require a flush since the library can handle the search, however queries would be much more complicated, and so if AUTO is set, it will flush it first. If the mode is set to COMMIT, it will only flush the changes to the database upon a call to commit or flush. If COMMIT is set, and a query is run, it will not return results that have not been flushed.

来源:Another stack overflow question