So is it now possible to combine the extent concept with a mapping on
multiple joined tables? What would be the expected behavior in such a
scenario?
<class-descriptor class="BaseClassThatCouldBeConcrete"
table="BaseClassTable" >
<extent-class class-ref="SubClass" />
...
</class-descriptor>
<class-descriptor class="SubClass" table="SubClassTable" >
...
<reference-descriptor
name="super"
class-ref="BaseClassThatCouldBeConcrete"
auto-retrieve="true"
auto-update="true"
auto-delete="true" >
<foreignkey field-ref="..." />
</reference-descriptor>
</class-descriptor>
-----Original Message-----
From: Armin Waibel [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 21, 2005 12:16 PM
To: OJB Users List
Subject: Re: Mapping Classes on Multiple Joined Tables
Jakob Braeuchi wrote:
>>
>> The issue is noted in the release-notes:
>>
>> <snip>
>> - When a class mapped on multiple joined tables was used in a
>> reference only objects
>> of the base type class will be instantiated, e.g. a Company class
has
>> a 1:n reference 'employees' to a base class Employee and class
>> Manager extends Employee,
>> then 'employees' only contains objects of type Employee even if the
>> real type was Manager.
>> See in OJB test suite
>> ...broker.InheritanceMultipleTableTest#testInheritancedObjectsInColle
>> ctionReferences
>>
>> Same problem occur when query the base class, then OJB only returns
>> objects of base type instead
>> the real type.
>> </snip>
>>
>> But I admit my English is abstruse ;-)
>
>
> you're right, i do not understand it :(
>
That's why I wrote the test case. Maybe you can rephrase this section in
release-notes, or much better finding a solution for the problem ;-) I
will check in my changes (first alpha version) for this kind of
inheritance today plus some new tests. But it will not solve the problem
described above.
regards,
Armin
> jakob
>
>>
>> regards,
>> Armin
>>
>>
>>
>>> Thank you,
>>> stefan walkner
>>>
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