[hibernate-issues] [Hibernate-JIRA] Closed: (HHH-2874) Problem with join table mapping

Gail Badner (JIRA) noreply at atlassian.com
Wed Oct 3 13:45:25 EDT 2007


     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2874?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gail Badner closed HHH-2874.
----------------------------

    Resolution: Rejected

Please use the user forum for help (http://forum.hibernate.org/).

> Problem with join table mapping
> -------------------------------
>
>                 Key: HHH-2874
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2874
>             Project: Hibernate3
>          Issue Type: Bug
>    Affects Versions: 3.2.5
>            Reporter: vinod dev
>            Priority: Minor
>
> I have a the below problem while mapping in hibernate.
> I am mapping a many - to - many relation.
> Table A				Table B
> Field X				Field A
> Field Y				Field Y
> Field Z				Field C
> 	Table  C(Many - to - Many or Combination Table)
> 	Field X
> 	Field Y
> 	Field A
> Mapping part
>         <class name="Table A's class">
>     <set name="tests" table="Table C" cascade = "all">
> 	        <key >
> 	        <column name="Field X" ></column>
> 	        <column name="Field Y"></column>
> 	        </key>
> 	        <many-to-many  class="Table B's Class" >
> 	        <column name="Field A"/>
> 	        <column name="Field Y"/>
> 	        </many-to-many>
> 	</set>		
> 	</class>
>              <class name="Table B's class">
> 	.
> 	.
> 	.
> 	</class>
> Bold indicates composite primary key.
> I get Repeated column in mapping for collection.
> If I remove field Y from either many-to-many or key I get this error.
> Foreign key (FKD3FBFB2875481687: must have same number of columns as the referenced primary key
> I would like to know if there is any way we can get rid of this.
> Please let me know if detail is required.
> Thanks

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