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From Lin Sun <>
Subject Re: EJB-QL Compiler Factory
Date Wed, 12 Sep 2007 14:29:32 GMT
I have seen them used in the very early version of daytrader (1.0?) for 
the DB2 plan but they are no longer used in the latest daytrader DB2 or 
Oracle plans.   My guess is that they are obsolete?


Efren Gonzalez wrote:
> Hello
> On the openejb-jar documentation, it says that the 
> <ejb-ql-compiler-factory> and <db-syntax-factory> are to specify classes

> that know about a certain RDBMS, and that the default is for Derby.
> I have used CMP EJBs with MySQL without specifying those two parameters 
> (it uses the Derby defaults I suppose) and haven't noticed any 
> particular issue, but I was wondering if there are specific classes for 
> MySQL.
> Does anyone know if there are such classes? Maybe using the Derby 
> defaults work OK with MySQL, but performance could be improved by using 
> specific MySQL ones?
> I have been looking in other threads and on the TranQL site with no 
> luck, hope someone can provide any clue on this.
> Thanks!!
> Efrén

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