The batch is per persister.If you want you can try a different behaviour but
take care... don't feel so happy at the first success,  try it in some
complex scenario saving objects graph with
different association/aggregation.

2009/10/19 fknebels <[email protected]>

>
> I'm running into the same problem.  When I strip down my code and only
> insert into one table (mapped type), the batching works correctly.
> Once I try to batch across a number of types, the statements no longer
> are batched.
>
> Is this by design?  if it's just grouping sql statements together,
> shouldn't it be able to do them across type?
>
> The documentation (Chapter 12. Batch processing) doesn't seem to
> mention this issue.
>
> Any information would be appreciated,
> --Fran
>
> On Oct 16, 7:53 am, arnesten <[email protected]> wrote:
> > Hi!
> >
> > I have 3 classes, lets call them X, Y and Z. They all use HiLo to
> > generate IDs. Y and Z reference X. The problem is that I get the
> > following SQL-statements when using NHProfiler:
> >
> > Statement 1: INSERT INTO X VALUES(..)
> > Statement 2: INSERT INTO Y VALUES(..)
> >  INSERT INTO Y VALUES(..)
> >  INSERT INTO Y VALUES(..)
> > Statement 3: INSERT INTO Z VALUES(..)
> >
> > I understand that X needs to be inserted alone, but the other two
> > statements I do not know why they are not batched together.
> >
> > To clarify this is what I want:
> >
> > Statement 1: INSERT INTO X VALUES(..)
> > Statement 2: INSERT INTO Y VALUES(..)
> >  INSERT INTO Y VALUES(..)
> >  INSERT INTO Y VALUES(..)
> >  INSERT INTO Z VALUES(..)
> >
> > I'm using NHibernate 2.1 and I have setadonet.batch_sizeto 20.
> >
> > Is it a limitation of NHibernate that types are batched type by type?
> > Or am I doing something wrong?
>
> >
>


-- 
Fabio Maulo

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