How to force flushing in Grails GORM

Question

I have a service that distributes tasks to operators. Inside a method I distribute many tasks in time inside a loop. I want to flush the task, the operator, and a DistributionLog. If I just had one domain to save I think I could do something like

Operator.withTransaction{ //...some code }

but I have at least 3 domains to save and to make it even worse, two of them have dependency on each other. The operator have a list of tasks.

I can't wait all the distribution to finish before an operator can get his tasks, so I have to force it to flush. To make it even harder, it's all inside a multitenantService.doWithTenant() (multitenant plugin)

I'm sorry Ithink I should have informed that I have already tried to call flush on the last .save() call, but it didn't work. I don't know if it is because all is happening inside the doWithTenant but what I know is that it didn't work — user3155328, May 27 '15 at 16:10

score 6 · Accepted Answer · answered Jun 02 '15 at 10:59

6

You can get the session using the withSession method available in all domain classes and call to flush() on it.

Operator.withSession { session ->
   // ...
   session.flush()
}

answered Jun 02 '15 at 10:59

albertovilches

340
1
5

score 3 · Answer 2 · answered May 29 '15 at 22:19

If you want to do an explicit flush, you can get a reference to the hibernate session factory in your grails service like this:

def sessionFactory

You can then get the current hibernate session, and call flush on that:

sessionFactory.currentSession.flush()

score 2 · Answer 3 · answered May 27 '15 at 15:42

2

You can force a flush with flush argument to the last call to save:

obj.save flush:true

answered May 27 '15 at 15:42

Graeme Rocher

7,985
2
26
37

1

The Object is not flushed right away. Only when the Transaction is commited, or the session is flushed, the Object is persisted. – IndianerJones Jan 20 '20 at 08:55

score 0 · Answer 4 · answered May 27 '15 at 16:07

See the documentation:

http://grails.github.io/grails-doc/2.2.5/ref/Domain%20Classes/save.html

The save method informs the persistence context that an instance should be saved or updated. The object will not be persisted immediately unless the flush argument is used:

b.save(flush: true)

How to force flushing in Grails GORM

4 Answers4

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