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Re: jBPM 5.1 in a real world web application
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created by <a href="https://community.jboss.org/people/krishnapitla">Krishna Pitla</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/748004#748004">View the full discussion</a>
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<div class="jive-rendered-content"><p>hi ashutosh,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>try out this code <span style="font-size: 10pt;"><span style="font-size: 2;"><p>kbuilder.add(ResourceFactory.<em>newClassPathResource</em>(</p></span><span style="color: #2a00ff; font-size: 10pt;">"simplerule.drl"</span><span style="font-size: 10pt;">), ResourceType.</span><em style="color: #0000c0; font-size: 10pt;"><em style="color: #0000c0; font-size: 10pt;">DRL</em></em><span style="font-size: 2;">); </span></span></p><div class="mcePaste" id="_mcePaste" style="left: 0px; position: absolute; top: 0px;"></div><p>in your code where you try to start the process .</p><p></p><p>Sample code pasted below :</p><p></p><p><strong style="color: #7f0055; font-size: 10pt;"><p><strong style="color: #7f0055; font-size: 10pt;"><strong style=": ; color: #7f0055; font-size: 2;"><p align="left">package</p></strong></strong></p></strong><span style="font-size: 10pt;"><span style="color: #000000;"> com.sample;</span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><p><span style=": ; color: #7f0055; font-size: 2;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><span style=": ; color: #7f0055; font-size: 2;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><span style=": ; color: #7f0055; font-size: 2;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><span style=": ; color: #7f0055; font-size: 2;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><span style=": ; color: #7f0055; font-size: 2;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><span style=": ; color: #7f0055; font-size: 2;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><span style=": ; color: #7f0055; font-size: 2;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></p></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><p><strong><span style="font-size: 10pt; color: #7f0055;"><strong style="color: #7f0055; font-size: 10pt;"><strong style=": ; color: #7f0055; font-size: 2;"><p align="left">import</p></strong></strong></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><span style="color: #000000; font-size: 10pt;"> org.drools.KnowledgeBase;</span></p><strong><span style="font-size: 10pt; color: #7f0055;"><strong style="color: #7f0055; font-size: 10pt;"><strong style=": ; color: #7f0055; font-size: 2;"><p align="left">import</p></strong></strong></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><span style="color: #000000; font-size: 10pt;"> org.drools.builder.KnowledgeBuilder;</span></p><strong><span style="font-size: 10pt; color: #7f0055;"><strong style="color: #7f0055; font-size: 10pt;"><strong style=": ; color: #7f0055; font-size: 2;"><p align="left">import</p></strong></strong></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><span style="color: #000000; font-size: 10pt;"> org.drools.builder.KnowledgeBuilderFactory;</span></p><strong><span style="font-size: 10pt; color: #7f0055;"><strong style="color: #7f0055; font-size: 10pt;"><strong style=": ; color: #7f0055; font-size: 2;"><p align="left">import</p></strong></strong></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><span style="color: #000000; font-size: 10pt;"> org.drools.builder.ResourceType;</span></p><strong><span style="font-size: 10pt; color: #7f0055;"><strong style="color: #7f0055; font-size: 10pt;"><strong style=": ; color: #7f0055; font-size: 2;"><p align="left">import</p></strong></strong></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><span style="color: #000000; font-size: 10pt;"> org.drools.io.ResourceFactory;</span></p><strong><span style="font-size: 10pt; color: #7f0055;"><strong style="color: #7f0055; font-size: 10pt;"><strong style=": ; color: #7f0055; font-size: 2;"><p align="left">import</p></strong></strong></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><span style="font-size: 10pt;"><span style="color: #000000;"> org.drools.runtime.StatefulKnowledgeSession;</span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><span style="color: #3f5fbf; font-size: 10pt;"><p align="left">/**</p><p align="left">* This is a sample file to launch a process.</p><p align="left">*/</p></span><strong><span style="font-size: 10pt; color: #7f0055;"><strong style="color: #7f0055; font-size: 10pt;"><strong style=": ; color: #7f0055; font-size: 2;"><p align="left">public</p></strong></strong></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><span style="font-size: 10pt; color: #000000;"> </span><strong style="color: #7f0055; font-size: 10pt;"><strong style="color: #7f0055; font-size: 10pt;">class</strong></strong><p align="left"><span style="font-size: 10pt;"><span style="color: #000000;"> ProcessMain {</span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><span style="font-size: 2;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></span></p><strong style="color: #7f0055; font-size: 10pt;"><strong style="color: #7f0055; font-size: 10pt;">public</strong></strong><span style="font-size: 10pt;"> </span><strong style="color: #7f0055; font-size: 10pt;"><strong style="color: #7f0055; font-size: 10pt;">static</strong></strong><span style="font-size: 10pt;"> </span><strong style="color: #7f0055; font-size: 10pt;"><strong style="color: #7f0055; font-size: 10pt;">final</strong></strong><span style="font-size: 10pt;"> </span><strong style="color: #7f0055; font-size: 10pt;"><strong style="color: #7f0055; font-size: 10pt;">void</strong></strong><span style="font-size: 10pt;"> main(String[] args) </span><strong style="color: #7f0055; font-size: 10pt;"><strong style="color: #7f0055; font-size: 10pt;">throws</strong></strong><p align="left"><span style="font-size: 10pt;"> Exception {<span style="font-size: 2;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></span></p><p align="left"><span style="font-size: 10pt; color: #3f7f5f;"><p align="left"><span style="font-size: 10pt; color: #3f7f5f;">// load up the knowledge base</span></p></span></p><span style="font-size: 10pt;"><p align="left">KnowledgeBase kbase = <em>readKnowledgeBase</em>();</p><p align="left">StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();</p><span style="font-size: 2;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></span><p align="left"><span style="font-size: 10pt; color: #3f7f5f;"><p align="left"><span style="font-size: 10pt; color: #3f7f5f;">// start a new process instance</span></p></span></p><span style=": ; font-size: 2;"><p align="left">ksession.startProcess(</p></span><span style="color: #2a00ff; font-size: 10pt;">"com.sample.bpmn.hello"</span><p align="left"><span style="font-size: 10pt;">);<span style="font-size: 2;"><p align="left">ksession.insert(</p></span></span></p><strong style="color: #7f0055; font-size: 10pt;"><strong style="color: #7f0055; font-size: 10pt;">new</strong></strong><p align="left"><span style="font-size: 10pt;"> Account());<p align="left">ksession.fireAllRules();</p><p align="left">}</p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><span style="font-size: 2;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></span></p><strong style="color: #7f0055; font-size: 10pt;"><strong style="color: #7f0055; font-size: 10pt;">private</strong></strong><span style="font-size: 10pt;"> </span><strong style="color: #7f0055; font-size: 10pt;"><strong style="color: #7f0055; font-size: 10pt;">static</strong></strong><span style="font-size: 10pt;"> KnowledgeBase readKnowledgeBase() </span><strong style="color: #7f0055; font-size: 10pt;"><strong style="color: #7f0055; font-size: 10pt;">throws</strong></strong><p align="left"><span style="font-size: 10pt;"> Exception {<p align="left">KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.<em>newKnowledgeBuilder</em>();</p><span style="font-size: 2;"><p align="left">kbuilder.add(ResourceFactory.<em>newClassPathResource</em>(</p></span></span></p><span style="color: #2a00ff; font-size: 10pt;">"simplerule.drl"</span><span style="font-size: 10pt;">), ResourceType.</span><em style="color: #0000c0; font-size: 10pt;"><em style="color: #0000c0; font-size: 10pt;">DRL</em></em><p align="left"><span style="font-size: 10pt;">);<p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><span style="font-size: 2;"><p align="left">kbuilder.add(ResourceFactory.<em>newClassPathResource</em>(</p></span></span></p><span style="color: #2a00ff; font-size: 10pt;">"sample.bpmn"</span><span style="font-size: 10pt;">), ResourceType.</span><em style="color: #0000c0; font-size: 10pt;"><em style="color: #0000c0; font-size: 10pt;">BPMN2</em></em><p align="left"><span style="font-size: 10pt;">);<span style="font-size: 2;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></span></p><strong style="color: #7f0055; font-size: 10pt;"><strong style="color: #7f0055; font-size: 10pt;">return</strong></strong><p align="left"><span style="font-size: 10pt;"> kbuilder.newKnowledgeBase();<p align="left">}</p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>}</p></span></p></strong></strong></strong></strong></strong></strong></strong></p></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p></p><p>Hope this helps . Though i am still new to jbpm and drools. So if i have missed something then please pardon me.</p></div>
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