The callback is invoked on a separate thread from the client so the client thread which does the placeOrder can continue and the callback will happen later on some other thread.
...ant On Thu, Jul 17, 2008 at 6:20 PM, Balasubramanyam, Shivakumar < [EMAIL PROTECTED]> wrote: > Hi ant, > > Thanks for your response. I have a question regarding the execution of this > statement in file OrderServiceClient.java > > > orderService.placeOrder(oRequest); > > // …the client code can continue to do processing > > > > I did not see any thread usage here and was wondering how the above > executtion returns to the client immediately. In which thread context does > the callack execute? > > > > Thanks, > > Shiva > > > > > > > ------------------------------ > *From:* ant elder [mailto:[EMAIL PROTECTED] > *Sent:* Thursday, July 17, 2008 3:36 AM > *To:* user@tuscany.apache.org > *Cc:* Balasubramanyam, Shivakumar > *Subject:* Re: Example of asynchronous programming using Callback > > There are a few samples the show using callbacks in the Tuscany samples > folder, look for the ones with "callback" in the name. The most recently > added is one using the jms binding: > http://svn.apache.org/repos/asf/tuscany/java/sca/samples/callbacks-jms, > which is based on an INFOQ article about SCA asynchronous programming, see > the sample README for details. > > ...ant > > On 7/16/08, Balasubramanyam, Shivakumar <[EMAIL PROTECTED]> wrote: >> >> Hi, >> >> I would like to know if there is any example that demonstates a >> asynchronous programming of a service. >> >> I would also like to know if there is any documentation of the threading >> model used by Java SCA Runtime. >> >> Thanks, >> Shiva >> > >
