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From Claus Ibsen <claus.ib...@gmail.com>
Subject Re: ScheduledPollConsumer - poll() behavior?
Date Fri, 19 Mar 2010 07:08:19 GMT
On Fri, Mar 19, 2010 at 2:49 AM, tide08 <sachin2_2k@yahoo.com> wrote:
>
> Sorry, I am much confused at this point :(
>
> In regards to ScheduledPollConsumer,  is poll() method invoked by concurrent
> consumers? or is it just one consumer? I just see one thread invoking
> poll(), what is threadpool for than?
>

Yes 1 thread. The thread pool can schedule as its a ScheduledExecutorService.


> Thanks!
>
>
>
> tide08 wrote:
>>
>> Hi,
>>
>> I am writing custom component and I need a polling consumer but I am not
>> sure, if the approach I am taking is correct. I need create
>> scheduledPollingConsumer which polls external system to receive messages.
>>
>> Looking at other components SchedulePollingConsumers implement poll()
>> method which works with "known" number of messages i.e. Mail, File - each
>> know what number of messages to work with inside of poll()
>>
>> //mail
>> int count = folder.getMessageCount();
>>
>> But in my scenario, there is no way to know it until you receive "null"
>> message from external system. So as I understand in my scenario, if there
>> are tonnes of messages, this consumer will keep running indefinitely. How
>> would this affect threadpool?
>>
>> How are ScheduledPollingConsumer supposed to behave? Consume as much in
>> polling interval? or consume restrictively so that the scheduled run ends
>> before the next schedule?
>>
>> Please advice. Thanks!
>>
>>
>>
>
> --
> View this message in context: http://old.nabble.com/ScheduledPollConsumer---poll%28%29-behavior--tp27942516p27950874.html
> Sent from the Camel - Users mailing list archive at Nabble.com.
>
>



-- 
Claus Ibsen
Apache Camel Committer

Author of Camel in Action: http://www.manning.com/ibsen/
Open Source Integration: http://fusesource.com
Blog: http://davsclaus.blogspot.com/
Twitter: http://twitter.com/davsclaus

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