Re: [eclipselink-users] Blob and PostgreSQL

[Tom Ware <tom.ware@xxxxxxxxxx>]

There is quite alot of functionality that can be overridden through subclassing 
our various database platforms.

You should be able to override buildFieldTypes() in PostgreSQLPlatform to change 
what DDL generation will generate.

How is writing to a LOB using OID different than writing to a bytea different in 
JDBC?

On 24/06/2013 9:50 AM, Andreas Joseph Krogh wrote:
> På mandag 24. juni 2013 kl. 14:37:07, skrev Tom Ware <tom.ware@xxxxxxxxxx
> <mailto:tom.ware@xxxxxxxxxx>>:
>
>     Is the code attached to this bug any help?
>
>     https://bugs.eclipse.org/bugs/show_bug.cgi?id=337467
>
>     If so, you can subclass PostgreSQLPlatform to make use of that code and enable
>     it by specifying the name of your subclass in the persistence unit property
>     "eclipselink.target-database".
>
> It looks like that code makes EL able to read blobs, but not to write them, or
> generate correct schema. Does EL offer a mechanism to override
> default-implementations of built-in types, so that one can make a custom
> Blob-type and have EL use it for all JPA-fields of type=Blob?
> --
> Andreas Joseph Krogh <andreak@xxxxxxxxxxxx>      mob: +47 909 56 963
> Senior Software Developer / CTO - OfficeNet AS - http://www.officenet.no
> Public key: http://home.officenet.no/~andreak/public_key.asc
>
>
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