Just now I notice one thing. The application that i am building is
compleatly EJB centric. I have um EJB project that usually do all the
database stuff, and another EJB project for the drools rules. Lets call
them
EJB-DATA and EJB-DROOLS. When the client calls for an specific data that
must be threated thru the Drools rules it calls an Stateless method from
EJB-DATA, inside the method, it gather the necessarie parameter
information and them inside the EJB-DATA method it calls the EJB-DROOLS.
(hoping not been confusing)
(if you are using an fixed space font, here comes the sequence)
Client --> EJB-DATA (gather information inside) --> EJB-DROOLS
<-- return to Client data from EJB-DROOLS<-- return to EJB-DATA
Now looking over my two projects, I notice that I make them apart so one
could evolve with interfering the other.
When I call EJB-DROOLS directly from an UNIT-TEST client with pojos
parameters intantiated by the test, it pass.
When I call EJB-DATA from an UNIT-TEST client (pojos created inside this),
first i was getting an CORBA exception ´cause of a ClassNotFoundException
for the hibernate PersistenceBag.
That´s the way i figure out that my objects are bagged or proxied thru
hibernate.
I´ve tried to use the EntityManager.clear() (EJB3-JPA) to clean the pojos
before send it and make them more like the ones from the first unit-test,
but even so it´s not working.
Then, possible solutions:
1) Make equality test works from objects that came from hibernate from jpa.
2) Kill the proxies and make them simple objects (not hibernate derivated).
3) don´t know, but i´m been realy in a deadline here.
again
thanks for anyone in advance !
--
Guto Maia
Consultor de TI / Desenvolvedor
CSM - SCJP- SCWCD - SCBCD - ZCE
In fact, i´m really using JPA with hibernate as an provider.
Could you send me your hibernate config? I will compare some proprieties
of tyour hibernate.config with my persistence.xml.
I plenty sure that the rule is ok, since it is working with the unit test.
If you need any help to mimic what your using with JPA, just ask.
Thanks anyway.
>
> I'm using non-proxied hibernate backed POJOs in drools with no problems.
> (THe pojos aer generaed by hbm2java.) I'll try configuring for proxies
> to
> see what happens.
>
>
> --- On Mon, 5/4/09, Gustavo Maia Neto <guto(a)guto.net> wrote:
>
>> From: Gustavo Maia Neto <guto(a)guto.net>
>> Subject: Re: [rules-users] Hibernate proxy objects equality tests
>> failing in Drools 5
>> To: "Rules Users List" <rules-users(a)lists.jboss.org>
>> Date: Monday, May 4, 2009, 11:28 AM
>> on this afternoon I will migrate to Drools 5 CR1,
>> unfortunelly i'm not
>> sure if it will solve my problem.
>>
>> Does anyone else uses Drools with objects that came from an
>> hibernate,
>> (proxies)?
>>
>> Also, i'm not using any proxy to fetch lazy data inside
>> my Drools
>> stateful session.
>>
>> thanks
>>
>> Guto escreveu:
>> > I was following that subject on markmail, and them
>> I've enterred the
>> > user-group (so subject and body are coppied from
>> them). I've got the
>> > exactly same problem. When I use the rules with
>> objects the came from the
>> > database (thru JPA hibernate provider), thouse rules
>> never match. When I
>> > do the same from Pojos hand made for unit test, it
>> work.
>> >
>> > I don't know what really happen, but i'm sure
>> that it is an equality test
>> > falling 'cause of the hibernate proxys.
>> >
>> > I don't get also any kind of error or exception,
>> since it ALL WORK. Just
>> > the rule isn't be acomplished.
>> >
>> > I'm using EJB3 + JPA (hibernate provider) and
>> Drools 4 GA;
>> >
>> > thanks in advance for any help
>> >
>>
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>> rules-users(a)lists.jboss.org
>>
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>
>
>
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>
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>
--
Guto Maia
Consultor de TI / Desenvolvedor
CSM - SCJP- SCWCD - SCBCD - ZCE
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