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From "Patrick Linskey" <plins...@bea.com>
Subject RE: Getting all the ClassMetaDatas
Date Tue, 02 Jan 2007 02:05:18 GMT
BTW, I should probably eludicate a bit. When working with
LifecycleEvents, you can get the instance associated with the event, and
from that you can get the corresponding StateManager and ClassMetaData:

    Broker broker = (Broker) ((PersistenceCapable) event.getSource())
        .pcGetGenericContext();
    StateManager sm = broker.getStateManager(event.getSource());
    ClassMetaData meta = sm.getMetaData();

With TransactionEvents, you can do:

    Broker broker = (Broker) event.getSource();
    for (Object o : event.getTransactionalObjects()) {
        StateManager sm = broker.getStateManager(o);
        ClassMetaData meta = sm.getMetaData();
        if (!sm.isDirty())
            continue;

        // update indexes
    }

Also, IMO, searching is something that shouldn't depend on the JPA spec
-- ideally, you should be able to implement all this without any
dependencies on the org.apache.openjpa.persistence package or
sub-packages.

-Patrick

-- 
Patrick Linskey
BEA Systems, Inc. 

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> -----Original Message-----
> From: Patrick Linskey 
> Sent: Monday, January 01, 2007 5:51 PM
> To: open-jpa-dev@incubator.apache.org
> Subject: RE: Getting all the ClassMetaDatas
> 
> > -----Original Message-----
> > From: Shay Banon [mailto:kimchy@gmail.com] 
> > Sent: Monday, January 01, 2007 1:11 PM
> > To: open-jpa-dev@incubator.apache.org
> > Subject: Getting all the ClassMetaDatas
> > 
> > ...
> > 
> > p.s.
> > 
> > I am the author of Compass, so once I have this nailed down, 
> > we will have
> > Search capabilities to OpenJPA ;)
> 
> Cool! FYI, you'll probably be interested in
> org.apache.openjpa.event.TransactionListener and
> org.apache.openjpa.event.LifecycleListener (and associated
> superinterfaces).
> 
> -Patrick
> ______________________________________________________________
> _________
> Notice:  This email message, together with any attachments, 
> may contain
> information  of  BEA Systems,  Inc.,  its subsidiaries  and  
> affiliated
> entities,  that may be confidential,  proprietary,  
> copyrighted  and/or
> legally privileged, and is intended solely for the use of the 
> individual
> or entity named in this message. If you are not the intended 
> recipient,
> and have received this message in error, please immediately 
> return this
> by email and then delete it.
> 

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