Difference between save and saveAndFlush in Spring data jpa

java spring hibernate jpa spring-data-jpa
Anand picture Anand · Jan 18, 2014 · Viewed 133.6k times · Source

I am trying to learn spring data JPA by testing some CRUD operation via JpaRepository.

I came across two methods save and saveAndFlush. I don't get the difference between these two. On calling save also my changes are getting saved into database so what is the use of saveAndFlush.

Answer

user1918305 picture user1918305 · Jan 18, 2014

On saveAndFlush, changes will be flushed to DB immediately in this command. With save, this is not necessarily true, and might stay just in memory, until flush or commit commands are issued.

But be aware, that even if you flush the changes in transaction and do not commit them, the changes still won't be visible to the outside transactions until the commit in this transaction.

In your case, you probably use some sort of transactions mechanism, which issues commit command for you if everything works out fine.

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