[hibernate-issues] [Hibernate-JIRA] Resolved: (HHH-5328) Equality check on a natural-id that references other entities

[Gail Badner (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5328?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gail Badner resolved HHH-5328.
------------------------------

      Assignee: Gail Badner
    Resolution: Duplicate

This was fixed in 3.5.2.

> Equality check on a natural-id that references other entities
> -------------------------------------------------------------
>
>                 Key: HHH-5328
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5328
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.5.1
>            Reporter: Manuel Schrag
>            Assignee: Gail Badner
>
> I have the following entity mapping:
> {code:xml}
> <class name="ch.ims.cufa.data.model.SystemSettingImpl" table="TB_SystemSetting"> 
>     <id name="id" type="string" column="id" length="32"> 
>       <generator class="uuid.hex"/> 
>     </id>  
>     <natural-id mutable="true"> 
>       <many-to-one name="orgCanton" class="ch.ims.cufa.data.model.OrgCantonImpl" cascade="none" lazy="false" foreign-key="FK_A_OrgCanto_SysSetti" unique="true"> 
>         <column name="COL_orgCanton" not-null="true">
>         </column> 
>       </many-to-one> 
>     </natural-id>
>   </class> 
> </hibernate-mapping>
> {code}
> Updating fails because hibernate invokes the equals() method on OrgCantonImpl but as the parameter it sends the id of the Object to compare, which returns always false. This ends up in an exception: immutable natural identifier was modified...

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