dernier réponse :::: upgrade to RC5, ClassCastException on getCollectionByQuery

[Reda Benzair <re...@smartjog.com>]

Armin Waibel wrote:

> Hi Raymond,
>
> Jakob has checked in a fix. Will be included
> in the upcoming 1.0 version.
>
> regards,
> Armin
>
> Armin Waibel wrote:
>
>> Hi,
>>
>> rbarlow@raymanoz.com wrote:
>>
>>> Hi Armin,
>>>
>>> Ah, right yes, that would make sense. Those 2 classes are not 
>>> instances of
>>> Collection. They descend from java.lang.Object (ie. does not extend
>>> anything). The implement ManagableCollection.
>>>
>>> This worked for rc3, I guess there's been changes around that since. 
>>> Does
>>
>>
>>
>> yes, I think the prefetching mechanism was added since rc3
>>
>>> this mean that I now need to descend all my custom list classes from
>>> Collection?
>>
>>
>>
>> hmm, I don't implement this new part, but I assume it's a bug, 
>> because I can't find an note in the release-notes that now all 
>> collection-class need to be instance of collection. And this wouldn't 
>> be make sense because in repository.dtd we say
>> "This attribute must only specified if the attribute type is not a 
>> java.util.Collection (or subclass) or Array type."
>>
>> I will try to add a test case for this problem.
>>
>> regards,
>> Armin
>>
>>>
>>> -Raymond
>>>
>>>
>>>> Hi Raymond,
>>>>
>>>> the error occured in method prefetchRelationship(Collection owners)
>>>> line 149 when a cast for the 1:n references is done.
>>>> The cast is
>>>>
>>>> if (collectionClass != null)
>>>> {
>>>>    newChildren = (Collection)
>>>> broker.getCollectionByQuery(collectionClass, queries[i]); //Line 149
>>>> }
>>>>
>>>> Thus I think OJB has problems with one of your collection class in
>>>> class-descriptor of Employee
>>>>
>>>> <collection-descriptor
>>>>         name="contracts"
>>>>         element-class-ref="com.hours28.domain.entity.EmployeeContract"
>>>>  collection-class="com.hours28.domain.entity.EmployeeContractCollection" 
>>>>
>>>>         auto-retreive="true"
>>>>         auto-update="true">
>>>>         <inverse-foreignkey field-ref="employeeId"/>
>>>>      </collection-descriptor>
>>>>
>>>>      <collection-descriptor
>>>>         name="employeeServiceDetails"
>>>> element-class-ref="com.hours28.domain.entity.EmployeeServiceDetail"
>>>> collection-class="com.hours28.domain.entity.EmployeeServiceDetailCollection" 
>>>>
>>>>         auto-retreive="true"
>>>>         auto-update="true">
>>>>         <inverse-foreignkey field-ref="employeeId"/>
>>>>      </collection-descriptor>
>>>>
>>>> Are both classes EmployeeContractCollection,
>>>> EmployeeServiceDetailCollection instance of Collection?
>>>>
>>>> regards,
>>>> Armin
>>>>
>>>> Raymond Barlow wrote:
>>>>
>>>>
>>>>> Hi Armin,<snip>
>>>>
>>>
>>>
>>>
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>>>
>>
>>
>>
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>
>
>
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-- 
*Reda BENZAIR**
*Software Analyst

***
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reda.benzair@smartjog.com <ma...@smartjog.com>

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