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How to trigger an external signal event with a web service
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created by <a href="https://community.jboss.org/people/nujib">Francois MARTIN</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/728668#728668">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hello,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am really new to Java and Jbpm so my questions may sound stupid. I designed a simple Process which looks like this : </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>and what I'd like to do is to trigger the signal event using a web service. I have a main function initializing the knowledgeBase and starting my process just like the HelloWorld example. I just moved the initialiation step to another class called ProcessManager which holds a static ksession variable. Here is the aborescence of my project : </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>My configuration is the following : </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>     -     jBPM 5.2</p><p>     -     Eclipse Helios SR2 3.6.2</p><p>     -     Tomcat 6 with Axis 2</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I already manage to create a webservice and integrate it into tomcat so that I can use SoapUI to make a call a get the result in the eclipse console. </p><p>I tried to trigger the signal event by inserting the following piece of code into the exposed method of my WS : </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java">ProcessManager.ksession.signalEvent(<font color="red">"receptionRetourOperat"</font>, 1);
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The problem is that the ksession that is initialized in my main function is null when making the WS call. I guess the two executions (WS call and main) are done in a different context so that I can't get the initialized ksession variable from my WS call. My questions are the following :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>- Is it possible to make the WS access the ksession variable from the main function ?</p><p>- Does it make sense to have only one jBPM session and to create a process instance at each WS call ?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks.</p></div>
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