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From Andrus Adamchik <and...@objectstyle.org>
Subject Re: Change data by an external process (non cayenne)
Date Thu, 16 May 2013 06:05:49 GMT
The question is too generic, so the answer is "yes" :) Could you describe the scenario in a
bit more detail? 

Also does your interface needs to know when an object is invalidated right at that moment
or is it enough to make the object "hollow" so that it is refetched lazily on next access?

Andrus

On May 16, 2013, at 7:52 AM, Markus Reich <markus.reich@markusreich.at> wrote:
> would it be possible to work with a servlet to invalidate certain objects?
> 
> Is there a way to get all ObjectStores of all Threads or is the only
> solution to set the DataContext as attribute in the session?
> 
> 
> 2013/5/15 Andrus Adamchik <andrus@objectstyle.org>
> 
>> I'd use query.setCacheStrategy(..) / query.setCacheGroups(..) to cache the
>> results, and then define expiration time for a given set of cache groups
>> for whatever cache provider is in use (EhCache most likely, so this will go
>> into ehcache.xml).
>> 
>> If you want real-time refresh, EhCache might be configured to listen to
>> cache group refresh events via JMS. Your external process would send such
>> events via ActiveMQ (that supports a bunch of command-line friendly
>> protocols, not just JMS) whenever the data is changed.
>> 
>> Andrus
>> 
>> 
>> On May 15, 2013, at 4:28 PM, Markus Reich <markus.reich@markusreich.at>
>> wrote:
>> 
>>> Hi,
>>> 
>>> is there really no better way than described here:
>>> http://markmail.org/message/plnaj4zj4gxrt6hk
>>> 
>>> regards
>>> Meex
>> 
>> 
> 
> 
> -- 
> *Markus Reich*
> Moosbach 28/2
> 6392 St. Jakob i.H.
> www.markusreich.at / www.meeximum.at
> markus.reich@markusreich.at


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