[jira] Commented: (OPENJPA-171) EntityManager.getReference() returns an object of a wronc class
[ https://issues.apache.org/jira/browse/OPENJPA-171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12480455 ] Abe White commented on OPENJPA-171: --- It would speed things up a lot if you attached a working test case demonstrating the problem. 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 AbstractAddresses. An AbstractAddress can be an EMailAddressImpl or a PostalAddressImpl. All these objects extend AbstractBusinessObject. When I call entityManager.getReference(PersonImpl.class, 1) I get the EMailAddressImpl object with id 1 instead of a PersonImpl object. If I get the object with a query (select p from PersonImpl p where p.id='1') everything is ok. My mapping file is : entity-mappings xmlns=http://java.sun.com/xml/ns/persistence/orm; xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance; xsi:schemaLocation=http://java.sun.com/xml/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm_1_0.xsd; version=1.0 mapped-superclass class=ch.admin.bit.fw2.bm.AbstractBusinessObjectImpl attributes id name=id column name=ID / generated-value strategy=SEQUENCE generator=TimeSeq/ sequence-generator name=TimeSeq sequence-name=time()/ /id version name=version / /attributes /mapped-superclass entity class=ch.admin.bit.fw2.demo.bm.address.AbstractAddressImpl table name=ADDRESS/table inheritance strategy=SINGLE_TABLE/ discriminator-column name=DISCRIMINANT length=1/ attributes basic name=addressName column name=ADDRESS_NAME/ /basic /attributes /entity entity class=ch.admin.bit.fw2.demo.bm.address.EMailAddressImpl discriminator-valueE/discriminator-value attributes basic name=domain column name=EMAIL_DOMAIN/ /basic basic name=name column name=EMAIL_NAME/ /basic /attributes /entity entity class=ch.admin.bit.fw2.demo.bm.address.PostalAddressImpl discriminator-valueP/discriminator-value attributes basic name=firstName column name=FIRST_NAME/ /basic basic name=lastName column name=LAST_NAME/ /basic basic name=street/basic basic name=country/basic basic name=zip/basic basic name=city/basic /attributes /entity entity class=ch.admin.bit.fw2.demo.bm.person.PersonImpl table name=PERSON / attributes basic name=title / basic name=firstName column name=FIRST_NAME / /basic basic name=lastName column name=LAST_NAME / /basic one-to-many name=addresses target-entity=ch.admin.bit.fw2.demo.bm.address.AbstractAddressImpl join-table name=PERS_ADDR join-column name=ID_PERSON / inverse-join-column name=ID_ADDRESS / /join-table /one-to-many /attributes /entity /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) ,
[jira] Commented: (OPENJPA-171) EntityManager.getReference() returns an object of a wronc class
[ https://issues.apache.org/jira/browse/OPENJPA-171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12480510 ] 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(ClassT cls, Object id) method could possibly 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 AbstractAddresses. An AbstractAddress can be an EMailAddressImpl or a PostalAddressImpl. All these objects extend AbstractBusinessObject. When I call entityManager.getReference(PersonImpl.class, 1) I get the EMailAddressImpl object with id 1 instead of a PersonImpl object. If I get the object with a query (select p from PersonImpl p where p.id='1') everything is ok. My mapping file is : entity-mappings xmlns=http://java.sun.com/xml/ns/persistence/orm; xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance; xsi:schemaLocation=http://java.sun.com/xml/ns/persistence/orm http://java.sun.com/xml/ns/persistence/orm_1_0.xsd; version=1.0 mapped-superclass class=ch.admin.bit.fw2.bm.AbstractBusinessObjectImpl attributes id name=id column name=ID / generated-value strategy=SEQUENCE generator=TimeSeq/ sequence-generator name=TimeSeq sequence-name=time()/ /id version name=version / /attributes /mapped-superclass entity class=ch.admin.bit.fw2.demo.bm.address.AbstractAddressImpl table name=ADDRESS/table inheritance strategy=SINGLE_TABLE/ discriminator-column name=DISCRIMINANT length=1/ attributes basic name=addressName column name=ADDRESS_NAME/ /basic /attributes /entity entity class=ch.admin.bit.fw2.demo.bm.address.EMailAddressImpl discriminator-valueE/discriminator-value attributes basic name=domain column name=EMAIL_DOMAIN/ /basic basic name=name column name=EMAIL_NAME/ /basic /attributes /entity entity class=ch.admin.bit.fw2.demo.bm.address.PostalAddressImpl discriminator-valueP/discriminator-value attributes basic name=firstName column name=FIRST_NAME/ /basic basic name=lastName column name=LAST_NAME/ /basic basic name=street/basic basic name=country/basic basic name=zip/basic basic name=city/basic /attributes /entity entity class=ch.admin.bit.fw2.demo.bm.person.PersonImpl table name=PERSON / attributes basic name=title / basic name=firstName column name=FIRST_NAME / /basic basic name=lastName column name=LAST_NAME / /basic one-to-many name=addresses target-entity=ch.admin.bit.fw2.demo.bm.address.AbstractAddressImpl join-table name=PERS_ADDR join-column name=ID_PERSON / inverse-join-column name=ID_ADDRESS / /join-table /one-to-many /attributes /entity /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)
