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@Lob column not updated?

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qabi

Post subject: @Lob column not updated?

Posted: Mon May 25, 2009 8:17 am

Newbie

Joined: Mon May 25, 2009 8:13 am
Posts: 2

Hi,

I'm using hibernate (JPA) with spring. I have a field of type Blob that is marked with an @Lob annotation.

This field causes a OID (postgresql) column to be created, but even though the field is set before peristing (insert/update) the column is always null.

I am creating the Blob instance with "Hibernate.createBlob(inputStream)".

Any ideas on why a Blob column is never updated? Any good ideas on how to diagnose?

Thanks,

-dennis

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Urmech

Post subject: Re: @Lob column not updated?

Posted: Tue May 26, 2009 5:25 am

Regular

Joined: Thu Apr 14, 2005 10:39 am
Posts: 115

Hi, this is an bug of postgres,
according to "Hibernate - Ein Praxisbuch für Entwickler" 2.6.11 S.134 ff -- German book.

I use

Quote:

@Type(type = "org.hibernate.type.BinaryType")

on my byte-array.

Otherwise you have to introduce Rules for Delete/Update to tell postgres what to do.

Greetings Michael

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