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From "Marcel Urbanek (JIRA)" <j...@apache.org>
Subject [jira] [Created] (OPENJPA-2040) Problems when using "openjpa.MetaDataFactory" Property
Date Wed, 17 Aug 2011 11:58:39 GMT
Problems when using "openjpa.MetaDataFactory" Property
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                 Key: OPENJPA-2040
                 URL: https://issues.apache.org/jira/browse/OPENJPA-2040
             Project: OpenJPA
          Issue Type: Bug
    Affects Versions: 2.1.1
            Reporter: Marcel Urbanek


I want to overwrite the MetaDataFactory like described here: 
http://openjpa.apache.org/builds/1.0.2/apache-openjpa-1.0.2/docs/manual/ref_guide_meta.html

But it turned out it doesn't work. I managed to develop a test scenario 
which easily produces the behaviour I encountered. 

What _does_ work is the following: 

Adding 
<property name="openjpa.MetaDataFactory" value="jpa"/> 
to persistence.xml. 

When setting this property my junit test (persisting a simple association, 
using @Column Annotation to use differing column names) does work. 


According to the document above, this property Tag should be equivalent to 
the setting above: 

<property name="openjpa.MetaDataFactory" 
value="org.apache.openjpa.persistence.PersistenceMetaDataFactory"/> 

But when using this configuration my junit test fails. The differing 
Column Names set by the @Column.name Attribute are no longer found. 
Instead the Java Attribute-Names are used in the SQL. 

My problem is, that I want to implement a custom MetaDataFactory and this 
doesn't work either (which is expected, because I extend 
PersistenceMetaDataFactory). 
Using PersistenceMappingFactory instead doesn't work either.

For detailed information please see the following discussion:
http://openjpa.208410.n2.nabble.com/Problems-when-using-quot-openjpa-MetaDataFactory-quot-Property-td6671704.html

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