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From "Jeremy Boynes (JIRA)" <...@geronimo.apache.org>
Subject [jira] Commented: (GERONIMO-1001) Derby NetworkServer does not use TCCL
Date Sat, 10 Sep 2005 15:47:30 GMT
    [ http://issues.apache.org/jira/browse/GERONIMO-1001?page=comments#action_12323128 ] 

Jeremy Boynes commented on GERONIMO-1001:
-----------------------------------------

A workaround is to load the classes for the procedures into the database as described here:
http://db.apache.org/derby/docs/10.1/devguide/cdevdeploy30736.html

I don't know if this is a permanent link so the relevant commands are:
CALL sqlj.install_jar('procs.jar', 'APP.Sample1', 0);
CALL SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY('derby.database.classpath', 'APP.Sample1');

> Derby NetworkServer does not use TCCL
> -------------------------------------
>
>          Key: GERONIMO-1001
>          URL: http://issues.apache.org/jira/browse/GERONIMO-1001
>      Project: Geronimo
>         Type: Bug
>   Components: databases
>     Versions: 1.0-M5
>  Environment: Derby 10.1
>     Reporter: Jeremy Boynes

>
> When calling stored procedures, the Derby engine locates the implementation using three
sources:
> * the Thread's context classloader (TCCL)
> * the database class path (jars that have been loaded in)
> * the classpath of the engine classes themselves
> When embedded in Geronimo as a RAR, we initialize the TCCL to that of the RAR which allows
procedure code to be located in the RAR itself.
> However, if the RAR defines a NetworkServer the TCCL is not inherited by the worker threads
it spawns to service requests from clients and as a result calls to procedures whose implementation
is located in the war will fail with a ClassNotFoundException

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