Pinaki:

Thanks for the reference.  I'd read your article earlier but I didn't 
understand the implications of that section.  I need some additional time to 
ponder the full implications of this capability and to decide whether or not 
this provides sufficient power for extending JPQL.  But I am immediately 
concerned that this hides invocation of native functionality in a rather 
unexpected place.  I doubt that I am the first to raise this objection.  What 
persuaded the committee to accept this syntax?

-=- Jerry


On Jun 3, 2010, at 2:37 PM, Pinaki Poddar [via OpenJPA] wrote:

> > This is a significant weakness of JPA in my not so humble opinion.  I would 
> > love to see a mechanism in JPA > 3.0 which allows the author to define 
> > aliases within JPQL for stored procedures, SQL functions, or 
> > DB-specific functions.   
> 
> Part of this limitation has been answered with JPA 2.0 itself. In JPA 2.0, 
> queries can use database specific functions [1]. 
> 
> [1] http://www.ibm.com/developerworks/java/library/j-typesafejpa/#N10B02
>     See the subsection "Extensible datastore expressions" 
> 
> Pinaki
> 
> 
> View message @ 
> http://openjpa.208410.n2.nabble.com/JPA-for-portable-database-management-tp5134215p5136374.html
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