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Posted to ojb-user@db.apache.org by Marco Achermann <ma...@bluewin.ch> on 2003/07/02 11:53:34 UTC

basic question: update with odmg api

Hi List

in tutorial2 is a short example about updating an object. It shows that 
all modifications on the model happen after the object ist locked by the 
tx so the object can be updatet properly.

Is there a way to update a given model though the modifications where 
performed bevore locking the model?

tyk
 Marco

Re: basic question: update with odmg api

Posted by Marco Achermann <ma...@bluewin.ch>.
Hi Thomas,

there is light at the end of the tunnel :-)

tyk
 Marco

Thomas Mahler wrote:

> Hi Marco,
>
> Marco Achermann wrote:
>
>> Hi List
>>
>> in tutorial2 is a short example about updating an object. It shows 
>> that all modifications on the model happen after the object ist 
>> locked by the tx so the object can be updatet properly.
>>
>> Is there a way to update a given model though the modifications where 
>> performed bevore locking the model?
>
>
> This is not supported by ODMG API (not OJB specific!)
> With a simple trick you can still implement it:
>
> 1. lock the object to the transaction
> 2. cast the transaction object to org.apache.ojb.odmg.TransactionImpl.
> 3. call the method markdirty(object)
>
> cheers,
> thomas
>
>>
>> tyk
>> Marco
>>
>>
>>
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>>
>
>
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Re: basic question: update with odmg api

Posted by Thomas Mahler <th...@web.de>.
Hi Marco,

Marco Achermann wrote:
> Hi List
> 
> in tutorial2 is a short example about updating an object. It shows that 
> all modifications on the model happen after the object ist locked by the 
> tx so the object can be updatet properly.
> 
> Is there a way to update a given model though the modifications where 
> performed bevore locking the model?

This is not supported by ODMG API (not OJB specific!)
With a simple trick you can still implement it:

1. lock the object to the transaction
2. cast the transaction object to org.apache.ojb.odmg.TransactionImpl.
3. call the method markdirty(object)

cheers,
thomas

> 
> tyk
> Marco
> 
> 
> 
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>