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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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Understanding Deployments & Executions
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created by <a href="http://community.jboss.org/people/obolabs">Karoy Labs</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/560102#560102">View the full discussion</a>
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<div class="jive-rendered-content"><p>Please read the following knowing that I am still only finding my way around JBPM as well as JBoss, although I've got some experience with weblogic and JEE in general.</p><p>Here I'm trying to wrap my mind around how the deploy and execution scenarios work together.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Consider this Ant-based deploy process:</p><p><taskdef</p><p>     name="jbpm-deploy"</p><p>     classname="org.jbpm.pvm.internal.ant.<strong>JbpmDeployTask</strong>"</p><p>     classpathref="jbpm.dependencies" /><br/><jbpm-deploy file="ProcessTester.bar" /></p><p>As far as I can tell, it parses the jbpm xml {for validation?} and  writes the .bar file contents into the JBPM4_LOB table, as well as creating entries for the process in other deployment related tables.</p><p>This is done without needing anything from the JBoss+JBPM runtime, other than the support libraries.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Once running, BPM Console checks the DB for available deployments.</p><p>When a process is 'Start'-ed in the Console's Process Overview, its <strong>.bar</strong> is read from DB, reassembled and executed in place. In other words, the business archive does not have to be explicitly in the JBoss classpath.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Is that more or less it or are there missing bits in this description?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Also, I am fairly certain that you can also deploy processes from .bar files included in the classpath by simply putting the file into the deploy folder of the JBoss instance. However, I remember reading in another thread that JBPM 4.4 doesn't yet have a deployer, but one can use 4.1,2,3 deployers?</p><p>This method of deployment would result in the same DB artifacts being generated and the execution would be same.</p></div>
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