openjpa-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hans J. Prueller" <hans.pruel...@gmx.net>
Subject Re: Duplicate query
Date Thu, 19 Apr 2007 16:44:08 GMT
Jacek,

thank you for diving into this. I added the following node to my
persistence.xml right
after the <classes> - List:

<exclude-unlisted-classes >true</exclude-unlisted-classes>

It seems that the "duplicate query" warning stays - did  I add it the
wrong way?

hans

Am Mittwoch, den 18.04.2007, 00:16 +0200 schrieb Jacek Laskowski:

> On 4/17/07, Hans J. Prueller <hans.prueller@gmx.net> wrote:
> 
> >  it took some time but finally I can send to the TRACE. As it is rather long
> > I'll paste it below. Additional information:
> 
> Thanks for the information. It's helped me a lot to narrow down the
> issue. I think it's misconfiguration that causes it and I don't think
> that we could call it a bug, but some improvements in OpenJPA
> configuration of PUs would be welcome.
> 
> I think that the first query parsing occurs because in Java EE
> environments a jpa container is supposed to find all managed
> persistence classes (see Chapter 6 Entity Packaging of the JPA spec).
> So, OpenJPA searches all the roots of persistence units and collect
> information on them. That's why you see the first message about the
> query.
> 
> 1679  lbsims  TRACE  [RMI TCP Connection(7)-127.0.1.1]
> openjpa.MetaData - parsePersistentTypeNames() found
> [com.lbslogics.ims.model.PositionLog].
> ...
> 2203  lbsims  TRACE  [RMI TCP Connection(7)-127.0.1.1]
> openjpa.MetaData - Parsing class
> "com.lbslogics.ims.model.PositionLog".
> ...
> 2546  lbsims  TRACE  [RMI TCP Connection(7)-127.0.1.1]
> openjpa.MetaData - Parsing query "PositionLog.byId".
> 
> Then, since the persistence.xml file has
> <class>com.lbslogics.ims.model.PositionLog</class> in it, it parses
> the class again (it shouldn't, but that's what I could merely come up
> with how OpenJPA works). That's when the other message about the query
> pops up:
> 
> 3123  lbsims  TRACE  [RMI TCP Connection(7)-127.0.1.1]
> openjpa.MetaData - Processing registered persistence-capable class
> "class com.lbslogics.ims.model.PositionLog".
> ...
> 3134  lbsims  TRACE  [RMI TCP Connection(7)-127.0.1.1]
> openjpa.MetaData - Parsing query "PositionLog.byId".
> 3135  lbsims  WARN   [RMI TCP Connection(7)-127.0.1.1]
> openjpa.MetaData - Found duplicate query "PositionLog.byId" in "class
> com.lbslogics.ims.model.PositionLog".  Ignoring.
> 
> To prevent the double parsing from occuring, remove the class element
> >from the persistence.xml file and let OpenJPA find the classes (not
> recommended in Java EE env and mandatory in Java SE) or add
> <exclude-unlisted-classes /> element to the persistence.xml file to
> tell OpenJPA that listed classes only are to be managed (highly
> recommended).
> 
> I think it should help avoiding the message - "openjpa.MetaData -
> Found duplicate query "PositionLog.byId" in "class
> com.lbslogics.ims.model.PositionLog".  Ignoring."
> 
> Jacek
> 

Mime
View raw message