From open-jpa-dev-return-2696-apmail-incubator-open-jpa-dev-archive=incubator.apache.org@incubator.apache.org Tue Mar 13 18:26:44 2007
Return-Path: <open-jpa-dev-return-2696-apmail-incubator-open-jpa-dev-archive=incubator.apache.org@incubator.apache.org>
Delivered-To: apmail-incubator-open-jpa-dev-archive@locus.apache.org
Received: (qmail 49920 invoked from network); 13 Mar 2007 18:26:43 -0000
Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2)
  by minotaur.apache.org with SMTP; 13 Mar 2007 18:26:43 -0000
Received: (qmail 67888 invoked by uid 500); 13 Mar 2007 18:26:40 -0000
Delivered-To: apmail-incubator-open-jpa-dev-archive@incubator.apache.org
Received: (qmail 67854 invoked by uid 500); 13 Mar 2007 18:26:40 -0000
Mailing-List: contact open-jpa-dev-help@incubator.apache.org; run by ezmlm
Precedence: bulk
List-Help: <mailto:open-jpa-dev-help@incubator.apache.org>
List-Unsubscribe: <mailto:open-jpa-dev-unsubscribe@incubator.apache.org>
List-Post: <mailto:open-jpa-dev@incubator.apache.org>
List-Id: <open-jpa-dev.incubator.apache.org>
Reply-To: open-jpa-dev@incubator.apache.org
Delivered-To: mailing list open-jpa-dev@incubator.apache.org
Received: (qmail 67763 invoked by uid 99); 13 Mar 2007 18:26:40 -0000
Received: from herse.apache.org (HELO herse.apache.org) (140.211.11.133)
    by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 13 Mar 2007 11:26:39 -0700
X-ASF-Spam-Status: No, hits=0.0 required=10.0
	tests=
X-Spam-Check-By: apache.org
Received: from [140.211.11.4] (HELO brutus.apache.org) (140.211.11.4)
    by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 13 Mar 2007 11:26:29 -0700
Received: from brutus (localhost [127.0.0.1])
	by brutus.apache.org (Postfix) with ESMTP id 49BF171406F
	for <open-jpa-dev@incubator.apache.org>; Tue, 13 Mar 2007 11:26:09 -0700 (PDT)
Message-ID: <29200918.1173810369270.JavaMail.jira@brutus>
Date: Tue, 13 Mar 2007 11:26:09 -0700 (PDT)
From: "Abe White (JIRA)" <jira@apache.org>
To: open-jpa-dev@incubator.apache.org
Subject: [jira] Commented: (OPENJPA-171) EntityManager.getReference()
 returns an object of a wronc class
In-Reply-To: <12197142.1173795729281.JavaMail.jira@brutus>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
X-Virus-Checked: Checked by ClamAV on apache.org


    [ https://issues.apache.org/jira/browse/OPENJPA-171?page=3Dcom.atlassia=
n.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12480510 ]=20

Abe White commented on OPENJPA-171:
-----------------------------------

I attempted to reproduce this in a very simple test case but failed.  We'll=
 need a user-supplied test case.  As a technical aside, I'm having trouble =
seeing how the "T getReference(Class<T> cls, Object id)" method could possi=
bly return anything other than a "T" instance.

> EntityManager.getReference() returns an object of a wronc class
> ---------------------------------------------------------------
>
>                 Key: OPENJPA-171
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-171
>             Project: OpenJPA
>          Issue Type: Bug
>    Affects Versions: 0.9.6
>            Reporter: Stefano Juri
>
> I have a simple class system : a PersonImpl owns a set of AbstractAddress=
es. An AbstractAddress can be an EMailAddressImpl or a PostalAddressImpl. A=
ll these objects extend AbstractBusinessObject.=20
> When I call entityManager.getReference(PersonImpl.class, "1") I get the E=
MailAddressImpl object with id "1" instead of a PersonImpl object.=20
> If I get the object with a query (select p from PersonImpl p where p.id=
=3D'1') everything is ok.
> My mapping file is :=20
> <entity-mappings xmlns=3D"http://java.sun.com/xml/ns/persistence/orm"
> =09xmlns:xsi=3D"http://www.w3.org/2001/XMLSchema-instance"
> =09xsi:schemaLocation=3D"http://java.sun.com/xml/ns/persistence/orm http:=
//java.sun.com/xml/ns/persistence/orm_1_0.xsd"
> =09version=3D"1.0">
> =09<mapped-superclass
> =09=09class=3D"ch.admin.bit.fw2.bm.AbstractBusinessObjectImpl">
> =09=09<attributes>
> =09=09=09<id name=3D"id">
> =09=09=09=09<column name=3D"ID" />
> =09=09=09=09<generated-value strategy=3D"SEQUENCE" generator=3D"TimeSeq"/=
>
> =09=09=09=09<sequence-generator name=3D"TimeSeq" sequence-name=3D"time()"=
/>
> =09=09=09</id>
> =09=09=09<version name=3D"version" />
> =09=09</attributes>
> =09</mapped-superclass>
> =09
> =09<entity class=3D"ch.admin.bit.fw2.demo.bm.address.AbstractAddressImpl"=
>
> =09=09<table name=3D"ADDRESS"></table>
> =09=09<inheritance strategy=3D"SINGLE_TABLE"/>
> =09=09<discriminator-column name=3D"DISCRIMINANT" length=3D"1"/>
> =09=09<attributes>
> =09=09=09<basic name=3D"addressName">
> =09=09=09=09<column name=3D"ADDRESS_NAME"/>
> =09=09=09</basic>
> =09=09</attributes>
> =09</entity>
> =09
> =09<entity class=3D"ch.admin.bit.fw2.demo.bm.address.EMailAddressImpl">
> =09=09<discriminator-value>E</discriminator-value>
> =09=09<attributes>
> =09=09=09<basic name=3D"domain">
> =09=09=09=09<column name=3D"EMAIL_DOMAIN"/>
> =09=09=09</basic>
> =09=09=09<basic name=3D"name">
> =09=09=09=09<column name=3D"EMAIL_NAME"/>
> =09=09=09</basic>
> =09=09</attributes>
> =09</entity>
> =09
> =09<entity class=3D"ch.admin.bit.fw2.demo.bm.address.PostalAddressImpl">
> =09=09<discriminator-value>P</discriminator-value>
> =09=09<attributes>
> =09=09=09<basic name=3D"firstName">
> =09=09=09=09<column name=3D"FIRST_NAME"/>
> =09=09=09</basic>
> =09=09=09<basic name=3D"lastName">
> =09=09=09=09<column name=3D"LAST_NAME"/>
> =09=09=09</basic>
> =09=09=09<basic name=3D"street"></basic>
> =09=09=09<basic name=3D"country"></basic>
> =09=09=09<basic name=3D"zip"></basic>
> =09=09=09<basic name=3D"city"></basic>
> =09=09</attributes>
> =09</entity>
> =09
> =09<entity class=3D"ch.admin.bit.fw2.demo.bm.person.PersonImpl">
> =09=09<table name=3D"PERSON" />
> =09=09<attributes>
> =09=09=09<basic name=3D"title" />
> =09=09=09<basic name=3D"firstName">
> =09=09=09=09<column name=3D"FIRST_NAME" />
> =09=09=09</basic>
> =09=09=09<basic name=3D"lastName">
> =09=09=09=09<column name=3D"LAST_NAME" />
> =09=09=09</basic>
> =09=09=09<one-to-many name=3D"addresses"
> =09=09=09=09target-entity=3D"ch.admin.bit.fw2.demo.bm.address.AbstractAdd=
ressImpl">
> =09=09=09=09<join-table name=3D"PERS_ADDR">
> =09=09=09=09=09<join-column name=3D"ID_PERSON" />
> =09=09=09=09=09<inverse-join-column name=3D"ID_ADDRESS" />
> =09=09=09=09</join-table>
> =09=09=09</one-to-many>
> =09=09</attributes>
> =09</entity>
> =09
> </entity-mappings>
> And the database creation script is :
> --------------------------------------------------
> -- Create Table ADDRESS
> --------------------------------------------------
> Create table ADDRESS (
>     ID                             VARCHAR(20)         NOT NULL    ,
>     DISCRIMINANT                   CHARACTER(1)        NOT NULL    ,
>     ADDRESS_NAME                   VARCHAR(35)         NOT NULL    ,
>     EMAIL_DOMAIN                   VARCHAR(50)                     ,
>     EMAIL_NAME                     VARCHAR(50)                     ,
>     FIRST_NAME                     VARCHAR(35)                     ,
>     LAST_NAME                      VARCHAR(35)                     ,
>     STREET                         VARCHAR(35)                     ,
>     CITY                           VARCHAR(35)                     ,
>     ZIP                            VARCHAR(10)                     ,
>     COUNTRY                        CHARACTER(2)                    ,
>     VERSION                        TIMESTAMP
>     )
> ;
> --------------------------------------------------
> -- Create Primary Key PRIMARY_KEY
> --------------------------------------------------
> alter table ADDRESS=20
> =09add constraint PERSON_KEY=20
> =09Primary Key (ID);
> --------------------------------------------------
> -- Create Table PERSON
> --------------------------------------------------
> Create table PERSON (
>     ID                             VARCHAR(20)         NOT NULL    ,
>     FIRST_NAME                     VARCHAR(35)         NOT NULL    ,
>     LAST_NAME                      VARCHAR(35)         NOT NULL    ,
>     TITLE                          VARCHAR(35)         NOT NULL        ,
>     VERSION                        TIMESTAMP
>     )=20
> ;
> --------------------------------------------------
> -- Create Primary Key SQL060816161507820
> --------------------------------------------------
> alter table PERSON=20
> =09add constraint ADDRESS_KEY=20
> =09Primary Key (ID);
> =09
> --------------------------------------------------
> -- Create Table PERS_ADDR
> --------------------------------------------------
> Create table PERS_ADDR (
>     ID_PERSON                      VARCHAR(20)         NOT NULL    ,
>     ID_ADDRESS                     VARCHAR(20)         NOT NULL   =20
> );
> --------------------------------------------------
> -- Create Primary Key SQL060816161507820
> --------------------------------------------------
> alter table PERS_ADDR=20
> =09add constraint PERS_ADDR_KEY=20
> =09Primary Key (ID_PERSON,ID_ADDRESS);
> =09
> Insert into PERSON values('1', 'Enrico', 'Barilla', 'Mr',0);
> Insert into PERSON values('2', 'Adelgrunde', 'Volkswagen', 'Ms',0);=09
> =09
> Insert into ADDRESS values('1', 'E', 'Home', 'barilla.it', 'enrico.barill=
a', NULL, NULL, NULL, NULL, NULL, NULL, 0);
> Insert into ADDRESS values('2', 'P', 'Office', NULL, NULL, NULL, NULL, 'K=
=C3=A4ferstr. 78', 'Wolfsburg', '12345', 'DE', 0);
> Insert into ADDRESS values('3', 'P', 'Home', NULL, NULL, NULL, NULL, 'Via=
 delle Lasagne 12', 'Roma', '67890', 'IT', 0);
> Insert into PERS_ADDR values ('1','1');
> Insert into PERS_ADDR values ('1','3');
> Insert into PERS_ADDR values ('2','2');

--=20
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.