AW: [Objectbridge-developers] Thread-Safety of OJB Classes

[Mahler T. <tho...@it...>]

Hi Sasha,

> -----Urspr=FCngliche Nachricht-----
> Von: Sasha Haghani [mailto:sha...@br...]
> Gesendet: Dienstag, 29. Mai 2001 22:39
> An: 'obj...@li...'
> Betreff: [Objectbridge-developers] Thread-Safety of OJB Classes
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> Hi Thomas and friends,
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> I have some questions regarding the thread-safety of some of=20
> the OJB classes
> as I will be using them in a multi-threaded application.
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> Here is the thread-safety of the key objects, as I understand=20
> them.  Please
> correct me if I'm wrong.
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> ojb.server.OJB: Thread-safe - a single instance can be used=20
> by multiple
> threads to instantiate databases.
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OK

> org.odmg.Database (ojb.server.DatabaseImpl): Not thread-safe?=20
> - one instance
> per thread.  Are there any issues/limitations with creating a=20
> pool of open
> databases?
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Everything in the ODMG package should be thread safe. The transaction
manager was build to handle transactions running concurrently within
separate threads.

> Also, from what I can determine from the source code, OJB=20
> maintains one
> connection per JdbcConnectionDescriptor in the repository XML=20
> file.  Is that
> correct?

Exactly.

regards,


Thomas


> Thanks,
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> Sasha Haghani
> Toronto, Canada
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