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Re: [eclipselink-users] Blob and PostgreSQL
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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".
-Tom
On 24/06/2013 4:30 AM, Andreas Joseph Krogh wrote:
Hi.
I see in PostgreSQLPlatform this code:
//**/
/* Return the JDBC type for the Java type. For some reason PostgreSQL does/
/* not seem to like the JDBC Blob type (PostgreSQL 8.2)./
/*//
@Override
*public int*getJDBCType(*Class*javaType) {
*if*(javaType ==*ClassConstants*./*BLOB*/) {
*return**Types*./*LONGVARBINARY*/;
}
*return super*.getJDBCType(javaType);
}
This indicates that EclipseLink doesn't use PG's OID-type for blobs (and testing
shows EL generates bytea-columns for JPA-fields of type java.sql.Blob). I need
to store quite large binaries in my DB so storing them as byte-arrays (PG's
bytea) doesn't work for me, I need to work with streams. I need be able to call
myBinaryProperty.getBinaryStream() on a JPA-entity holding this blob.
Is there a way to teach EclipseLink to treat Blobs as PG's OID-type?
Thanks.
--
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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