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From "Golgoth 14 (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-3650) Derby + Hibernate JPA 3.2.1 problem on entity with Blob/Clob
Date Wed, 30 Apr 2008 14:21:55 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12593336#action_12593336
] 

Golgoth 14 commented on DERBY-3650:
-----------------------------------

On my previous comment, I've added the Maven command to run the test without Eclipse :)

I will perhaps post the same test case on the Hibernate Forum...

Thanks,
  Stephane

> Derby + Hibernate JPA 3.2.1 problem on entity with Blob/Clob
> ------------------------------------------------------------
>
>                 Key: DERBY-3650
>                 URL: https://issues.apache.org/jira/browse/DERBY-3650
>             Project: Derby
>          Issue Type: Bug
>          Components: Network Client
>    Affects Versions: 10.4.1.3
>         Environment: Mac OSX 10.4
> JDK 1.5.0_13
> Hibernate EntityManager 3.2.1
>            Reporter: Golgoth 14
>         Attachments: DerbyHibernateTest.zip
>
>
> Hi,
> I'm using Derby in Client - Server mode with Hibernate JPA EJB 3.0.
> When a query on an entity containing a Clob and some joins on other entites is executed,
an exception with the following message is thrown:
>   XJ073: The data in this BLOB or CLOB is no longer available.  The BLOB/CLOB's transaction
may be committed, or its connection is closed.
> This problem occurs when the property "hibernate.max_fetch_depth" is greater than 0.
> When hibernate.max_fetch_depth=0, the query works.
> If Derby is configured in embedded mode, the query works independently of the value of
hibernate.max_fetch_depth.
> On the Hibernate's documentation, the advised value of hibernate.max_fetch_depth is 3.
> Could you explain me if I made something wrong ?
> Thank you.
> Stephane

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