I guess it would be easily possible to turn the cache *off*.
But what do you do about circular references?
You get exposed to stack overflows w/o a cache.
|---------+------------------------------------------->
| | Andrea Aime <[EMAIL PROTECTED]> |
| | Sent by: |
| | [EMAIL PROTECTED]|
| | ceforge.net |
| | |
| | |
| | 14/08/03 04:55 PM |
| | |
|---------+------------------------------------------->
>------------------------------------------------------------------------------------------------------------------------------|
|
|
| To: hibernate list <[EMAIL PROTECTED]>
|
| cc:
|
| Subject: [Hibernate] Session-less OR-mapping
|
>------------------------------------------------------------------------------------------------------------------------------|
Hi Gavin, hi everybody,
working on an application that needs to manage lots of objects/records, I'm
wondering
if it would be difficult to have a session-less or-mapping, that is,
something that just
enables HQL, transactions, statement caching and batching withouth putting
objects
in the session cache, no callbacks, no cascades.
There are time when I'd like to do mass deletes, or another example where I
have to
insert 200.000 objects into the database, where the session cache is a
royal pain
performance and memory wise.
I know your standard answer, just do it with direct sql, but consider that:
* direct sql needs the real table and column names (I have to go back and
look at
the mapping to see what are the real column names since often I cannot
keep the
java name in the sql)
* the code is mixed, thus a bit more difficult to use;
* the same code throws both HibernateException and SQLException and they
need
to be catched separately;
* I have to implement by hand batching, creating the prepared statements,
and so on
So, using direct SQL _is_ faster, but I loose much convenience and I have
to
do work that should be performed by the OR mapping tool. Do you think it's
too complicated
to have another option, a cache-less behaviour?
If you can give pointers on how to implement it I try to code it myself
(for the next project,
since this one already use hand-made statements, but I like to see
Hibernate become more
flexible)
Best regards
Andrea Aime
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