So before I do the merge() I verified that Image() had been set. Is it possible to change a versioned entity instance, and get the to-be-incremented-version without using flush ? too long after flushing the modification, the version is finally : 17 */ public void modify Header And Get Updated Version() In my test, the version got incremented after the flush. FIELD) public class Employee package com.journaldev.hibernate.model; import javax.persistence. Cascade; @Entity @Table(name = "EMPLOYEE") @Access(value=Access Type. FIELD) public class Address package com.journaldev.hibernate.main; import org.hibernate. Generic Generator; import org.hibernate.annotations. Parameter; @Entity @Table(name = "ADDRESS") @Access(value=Access Type. Transaction; import com.journaldev.hibernate.model.
Today we will look into Session important methods for saving and updating data in tables – save, save Or Update, persist, update and merge.
As both are referring to the same record there is a failure.
The solution to above issue would be to As can be seen from the above Hibernate did not modify the detached entity.
too long the version before modification : 16 the version after modification : 16 after merge the modification, the version is : 16 Hibernate: update Receiving Good set creation Date=? And then the UI could have the latest version, and will pass this version for the next submission. too long after the second flush, the version got increased again into : 20 */ public void modify Header And Get Updated Version With2Flushes() I'll again recommend reading more about Hibernate and how it works, be it by its documentation or "Java Persistence with Hibernate".
In my experience, incrementing this manually can be problematic as can be seen from this example below. The 1st one is to synchronize the changes to the db connection, so that a stored procedure call from the same connection could see the changes made from the entity Manager. You are seeing this in flush operation because that's where the database updates happens.