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<a href="http://community.jboss.org/index.jspa" style="text-decoration: none; color: #E1E1E1">JBoss Community</a></h1>
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Parallel gateways really parallel?
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created by <a href="http://community.jboss.org/people/tob1as">Tobias Wittur</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/628338#628338">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I was trying to throw and catch a message while also running a count down timer, that terminates the process in case a message is not received within a certain time.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I therefore used a parallel gateway. I ran into some issues and wonder now, are the different branches running in parallel or randomly sequential?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #339966;">In this process, my service task on the top throws a message, which the intermediate message catch event receives and successfully executes.The service task asks the user per command line, if a message should be thrown.</span></p><p><a href="http://community.jboss.org/servlet/JiveServlet/showImage/2-628338-17049/Capture3.GIF"><span> http://community.jboss.org/servlet/JiveServlet/downloadImage/2-628338-17049/450-118/Capture3.GIF </span></a></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I then tried to introduce the timer as a thrid branch. However, the timer is never started. It never <span style="color: #ff0000;">"runs into check if message received within time frame"</span>.</p><p><a href="http://community.jboss.org/servlet/JiveServlet/showImage/2-628338-17050/Capture2.GIF"><span> http://community.jboss.org/servlet/JiveServlet/downloadImage/2-628338-17050/450-217/Capture2.GIF </span></a></p><p><span style="color: #ff0000;">I then remodelled the process. Here, suddenly the intermediate catch event is never executed.</span></p><p><a href="http://community.jboss.org/servlet/JiveServlet/showImage/2-628338-17048/Capture1.GIF"><span> http://community.jboss.org/servlet/JiveServlet/downloadImage/2-628338-17048/450-239/Capture1.GIF </span></a></p><p>Are those parallel gateways executed sequentially or do they run in separate threads and are executed in parallel?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I know usually I would use an intermediate catch. However, I have to present my process to my boss next week and I have to show, how easily I can introduce change in a modeler to a process and execute it. So subprocesses and event based splits are not an option for this model.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Best regards,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Tobias</p></div>
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