hi steve,
the problem should be fixed now. i implemented a new class ProxyHelper to
get the real object.
hth
jakob
----- Original Message -----
From: "Jakob Braeuchi" <[EMAIL PROTECTED]>
To: "OJB Users List" <[EMAIL PROTECTED]>; "sclark"
<[EMAIL PROTECTED]>
Sent: Tuesday, December 17, 2002 6:36 PM
Subject: Re: singlevm PB bug: proxies in MtoN relationships
> hi steve,
>
> this problem is already fixed in the current revision in cvs. i fixed it
in
> ClassDescriptor#getKeyValues.
>
> hth
> jakob
>
> ----- Original Message -----
> From: "sclark" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, December 17, 2002 6:01 PM
> Subject: singlevm PB bug: proxies in MtoN relationships
>
>
> > I think I've found a bug in the singlevm PersistenceBrokerImpl. The
> problem
> > occurs when the target of a many-to-many relationship is a proxied class
> and the
> > indirection table is implicit. In 0.9.7 I get exceptions like the
> following:
> >
> > [org.apache.ojb.odmg.ObjectEnvelopeTable] ERROR: Commit on object level
> failed
> > for tx org.apache.ojb.odmg.TransactionImpl@593225
> > $Proxy54 not found in OJB Repository
> > org.apache.ojb.broker.metadata.ClassNotPersistenceCapableException:
> $Proxy54 not
> > found in OJB Repository
> > at
> >
>
org.apache.ojb.broker.metadata.DescriptorRepository.getDescriptorFor(Descrip
> torR
> > epository.java:322)
> > at
> >
>
org.apache.ojb.broker.metadata.DescriptorRepository.getDescriptorFor(Descrip
> torR
> > epository.java:310)
> > at
> >
>
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.storeMtoNImplementor(Pe
> rsis
> > tenceBrokerImpl.java:766)
> > at
> >
>
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.storeCollections(Persis
> tenc
> > eBrokerImpl.java:725)
> > at
> >
>
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.store(PersistenceBroker
> Impl
> > .java:1615)
> > at
> >
>
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.store(PersistenceBroker
> Impl
> > .java:1539)
> > at
> >
>
org.apache.ojb.broker.singlevm.PersistenceBrokerImpl.store(PersistenceBroker
> Impl
> > .java:1525)
> >
> > It appears that the problem is that storeMtoNImplementor does not check
> for
> > otherObj being a proxy and does not retrieve its realSubject. I added
> this
> > code:
> >
> > if (otherObj instanceof VirtualProxy)
> > {
> > otherObj = ((VirtualProxy) otherObj).getRealSubject();
> > }
> > // same for dynamic Proxies
> > else if (Proxy.isProxyClass(otherObj.getClass()))
> > {
> > IndirectionHandler handler = (IndirectionHandler)
> > Proxy.getInvocationHandler(otherObj);
> > otherObj = handler.getRealSubject();
> > }
> >
> > ... before the declaration of otherCld, and the problem went away.
> Anybody want
> > to comment and/or commit a fix?
> >
> > thanks,
> > -steve
> >
> > Steve Clark
> > Technology Applications Team
> > Natural Resources Research Center/USGS
> > [EMAIL PROTECTED]
> > (970)226-9291
> >
> >
> >
> > --
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> >
>
>
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