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From "aabbcc (Closed) (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (OPENJPA-2138) One-To-Many mapping is not working
Date Thu, 01 Mar 2012 13:17:58 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-2138?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

aabbcc closed OPENJPA-2138.
---------------------------

    Resolution: Cannot Reproduce
    
> One-To-Many mapping is not working
> ----------------------------------
>
>                 Key: OPENJPA-2138
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-2138
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: jpa
>    Affects Versions: 2.1.1
>            Reporter: aabbcc
>
> I have business object model with below structure
> Class A {
> private B b;
> }
> Class B {
> private String joinKey;
> private List<C> c;
> }
> Class C {
> private String joinKey;
> private String str1;
> private String str2;
> }
> In the ORM.xml,I have specified mapping like this 
> <entity class="xxx.xxx.A">
>   <table name="table1"/>
>   <attributes>
>   <one-to-one name="name1" target-entity="xxx.xxx.B">
>       <join-column name='"column1"' referenced-column-name='"column1"'/>
>   </one-to-one>
>   </attributes>
> </entity>
> <entity class="xxx.xxx.B">
>  <table name="table2"/>
>  <attributes>
>  <basic name="joinKey">
>     <column name="column1"/>
>  </basic> 
>  <one-to-many name="name1" target-entity="xxx.xxx.C">
>       <join-column name='"column1"' referenced-column-name='"column1"'/>
>   </one-to-many>
>   </attributes>
> </entity>
> <entity class="xxx.xxx.C">
>   <attributes>
>   <basic name="joinKey">
>     <column name="column1"/>
>  </basic>
>       <basic name="str1">
>            <column name="str1Column"/>
>       </basic>
>       <basic name="str2">
>            <column name="str2Column"/>
>       </basic>
>   </attributes>
> </entity>
> The one-to-many mapping specified in the entity C does not work by both approach 1) JoinColumn
2) JoinTable.  My code skips this mapping while generating SQL query.
> But instead of one-to-many mapping If I specify one-to-one mapping and change class B
to replace "private List<C> c;" with "private C c;" then the one-to-one mapping works
fine.
> I am using OPENJpa 2.1.1, as per the documentation one-to-many mapping should work but
it seems OPENJpa 2.1.1 API is working as expected. It seems there is bug in API.
> Can you please advise to fix this issue?

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