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How to get parameters in Script Action
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created by <a href="https://community.jboss.org/people/martin_2013">martin martin</a> in <i>jBPM</i> - <a href="https://community.jboss.org/docs/DOC-48275">View the full document</a>
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<div class="jive-rendered-content"><p>Hello everybody.I have a question, then need your help.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I start a process by session and set a map of parameters.The name of a parameter is "person". As follows:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>KnowledgeBuilder kBuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();</p><p> kBuilder.add(ResourceFactory.newClassPathResource("hello.bpmn"), </p><p>                ResourceType.BPMN2);</p><p>KnowledgeBase kBase = kBuilder.newKnowledgeBase();</p><p>StatefulKnowledgeSession kSession = kBase.newStatefulKnowledgeSession();</p><p>Map<String, Object> params = new HashMap<String, Object>();    </p><p>Person person = new Person();</p><p>person.setName("martin");</p><p> params.put("person", person);</p><p>ProcessInstance pInstance = kSession.startProcess("com.sample.hello", params);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>then I think print the name of person in a script action.Code as follows:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>System.out.println(person.getName());</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I run my codes and then get a exception:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>[main] ERROR builder.impl.KnowledgeBuilderImpl.newKnowledgeBase  - Process Compilation error : org.drools.lang.descr.ProcessDescr@79024994</p><p>    defaultPackage/Process_defaultPackage_Sample_Process_4419562b234b4de3b32f940de6602c9f.java (11:468) : person cannot be resolved</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Exception in thread "main" java.lang.IllegalArgumentException: Could not parse knowledge.</p><p>    at org.drools.builder.impl.KnowledgeBuilderImpl.newKnowledgeBase(KnowledgeBuilderImpl.java:79)</p><p>    at com.sample.JBPMTest.main(JBPMTest.java:23)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>How to get parameters in script action?</p><p>Thank you!</p></div>
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<p style="margin: 0;">Comment by <a href="https://community.jboss.org/docs/DOC-48275">going to Community</a></p>
<p style="margin: 0;">Create a new document in jBPM at <a href="https://community.jboss.org/choose-container!input.jspa?contentType=102&containerType=14&container=2034">Community</a></p>
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