Yes, I have one, but it cannot be used by PersistentFieldIntrospectorImpl
because the getPropertyDescriptor().getWriteMethod() returns null.
I think this is because the set accessor
public void setBs( Collection )
is not recognized as a setter for the property
public BList getBs()
because they have not the same type.
-----Message d'origine-----
De : Larry V. Streepy, Jr. [mailto:[EMAIL PROTECTED]
Envoye : mardi 13 janvier 2004 18:06
A : OJB Users List
Objet : Re: Problem using strongly typed collections
I know that it may have just been omitted from your example data model,
but do you have a
public void setBs( Collection )
method in A?
Guillaume Nodet wrote:
>The problem is the object model cannot be modified.
>
>-----Message d'origine-----
>De : Thomas Mahler [mailto:[EMAIL PROTECTED]
>Envoye : mardi 13 janvier 2004 17:41
>A : OJB Users List
>Objet : Re: Problem using strongly typed collections
>
>
>Hi Guilaume,
>
>Guillaume Nodet wrote:
>
>
>>I've got an object model with strongly typed collections:
>>
>> class A {
>> private BList bs;
>> public BList getBs();
>> }
>>
>> class B {
>> ...
>> }
>>
>> class BList implements Collection {
>> ...
>> }
>>
>>When I store the object, everything is good, but when i read it later i've
>>got an exception
>>thrown from AbstractPersistentField.set when trying to set the B
>>
>>
>collection,
>
>
>>which is a
>>ManageableCollection.
>>
>>
>
>IMO the is caused by the fact that you Blist attribute is now filled
>with a ManeageableCollection and not with BList!
>
>You have to tell in the collection-descriptor that the "bs" attribute
>must use a special collection-class="BList".
>
>To make this work You BList must implement the interface
>o.a.ojb.broker.ManageableCollection.
>
>See tutorial 3 for more details.
>
>
>
>>OJB was configured to use
>>PersistentFieldDirectAccessImpl.
>>
>>So i tried with PersistentFieldIntrospectorImpl and adding a set method
>> public void setBs(Collection list)
>>but I've got the following exception:
>> Can't get WriteMethod for property:bs in object:A
>>
>>
>>Is there a way to store and read my collection without writing a custom
>>PersistentField ?
>>
>>
>>
>
>IMO this is only a secondary error!
>
>cheers,
>thomas
>
>
>
>>Guillaume Nodet
>>
>>
>>
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>
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--
Larry V. Streepy, Jr.
Senior Vice President and CTO
Health Language, Inc.
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