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From "Martin Taal (JIRA)" <j...@apache.org>
Subject [jira] Created: (OJB-20) Allow the use of collection-factory
Date Tue, 12 Apr 2005 18:41:16 GMT
Allow the use of collection-factory
-----------------------------------

         Key: OJB-20
         URL: http://issues.apache.org/jira/browse/OJB-20
     Project: OJB
        Type: New Feature
  Components: PB-API  
    Versions: 1.1 CVS    
    Reporter: Martin Taal
 Attachments: patch_coll_factory.txt

Hi,
This is a request for allowing a user to specify a collection-factory for a collection-descriptor.
The collection factory is used to create collection instances when the owner of the collection
is read from the database. 
In my usecase I need to pass runtime information to the constructor of the collection (i.e.
the collection needs its owning object). This is for example for handling a notification infrastructure
in which changes to the collection are broadcasted to listeners who need to know from which
object the notification comes. The current collection-class implementation in ojb 'only' supports
zero-argument constructors which do not handle my usecase.

I have made an implementation of the collection-factory in ojb which I will try to attach
(as a patch) to this request or otherwise send to the ojb-dev mailing list. If I can be of
help to get this implemented then please let me know. 

gr. Martin Taal

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