[
Date Prev][
Date Next][
Thread Prev][
Thread Next][
Date Index][
Thread Index]
[
List Home]
|
[eclipselink-users] Batch insert
|
Hi,
what is the recommended way to batch insert an object tree using eclipselink? I have a three-level object tree, where each parent has a one tot many relationship with its children.
A
- B
- C
- C
- C
- C
- C
- B
- C
- C
- C
-B
- C
When I use em.persist(a) with logging set to FINEST, I notice that each object generates a separate insert statement, and a "select @@IDENTITY" after the insert. The persist is transactional, so all inserts are committed at the same time, but is there a way to only create a single insert statement fot the C objects with multiple parameters like this
insert into C(col1,col2,B_ID)
values
(...,...,...)
(...,...,...)
(...,...,...)
(...,...,...)
(...,...,...)
and execute this in one go?
I tried eclipselink.jdbc.batch-writing "JDBC", but this only batches a single insert of C, which does not solve the problem.
Does anyone has an idea to improve batch insertion time?
Regards,
Leen Toelen
