Question about inheritence

[Necro <Ne...@komdat.de>]

Hi,

i'd like to do the following. I have classes A, B and C.
A is superclass of B and B is superclass of C. There are
the following entries in the repository.xml file

<class-descriptor class="A" table="a">
  <field-descriptor name="id" column="id" ... />
  ...
</class-descriptor>

<class-descriptor class="C" table="c">
  <field-descriptor name="id" column="id" ... />
  <field-descriptor name="additionalvalue" ... />
  <reference-descriptor name="super" class-ref="A">
    <foreign-key field-ref="id" />
  </reference-descriptor>
</class-descriptor>

As you can see I don't want to add any persistence to B.
B just adds some additional methods, no values.

The problem is, I get an exception in the class
org.apache.ojb.broker.metadata.RepositoryXmlHandler
because the checkThis method checks whether A is the
direct superclass of C which is not the case.

My question is, does it really need to be the direct
superclass? Are there any workarounds? What else can
I do?

Tanks

christof

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Re: Question about inheritence

[Necro <Ne...@komdat.de>]

Thomas Dudziak wrote:
> Perhaps adding an extent-class to the descriptor for A helps ?

Sorry, i did forget to mention that. Yes there is an extent-class.
The problem is, the method checkThis() ignores this information.
It only checks, whether (something like the following)
C.class.getSuperclass().getName().equals(A.class.getName()), which is
not the case, because B is in between.

> <class-descriptor class="A" table="a">
>   <extent-class class-ref="C"/>
>   ...
> </class-descriptor>
> 
> Tom


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Re: Question about inheritence

[Thomas Dudziak <to...@first.gmd.de>]

Perhaps adding an extent-class to the descriptor for A helps ?

<class-descriptor class="A" table="a">
  <extent-class class-ref="C"/>
  ...
</class-descriptor>

Tom


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