il faut voir au niveau upgrade to RC5, ClassCastException on getCollectionByQuery

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

Raymond Barlow wrote:

> Hi Armin,
>
> I found Jacob's fixes and incorporated them into my local source 
> branch, rebuilt jars etc, and now it all works!!
>
> Thanks Armin. Thanks Jacob.
>
> -Raymond
>
> 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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