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How to get parameters in Script Action

created by martin martin in jBPM - View the full document

Hello everybody.I have a question, then need your help.

 

I start a process by session and set a map of parameters.The name of a parameter is "person". As follows:

 

KnowledgeBuilder kBuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();

kBuilder.add(ResourceFactory.newClassPathResource("hello.bpmn"),

                ResourceType.BPMN2);

KnowledgeBase kBase = kBuilder.newKnowledgeBase();

StatefulKnowledgeSession kSession = kBase.newStatefulKnowledgeSession();

Map<String, Object> params = new HashMap<String, Object>();   

Person person = new Person();

person.setName("martin");

params.put("person", person);

ProcessInstance pInstance = kSession.startProcess("com.sample.hello", params);

 

then I think print the name of person in a script action.Code as follows:

 

System.out.println(person.getName());

 

I run my codes and then get a exception:

 

[main] ERROR builder.impl.KnowledgeBuilderImpl.newKnowledgeBase  - Process Compilation error : org.drools.lang.descr.ProcessDescr@79024994

    defaultPackage/Process_defaultPackage_Sample_Process_4419562b234b4de3b32f940de6602c9f.java (11:468) : person cannot be resolved

 

Exception in thread "main" java.lang.IllegalArgumentException: Could not parse knowledge.

    at org.drools.builder.impl.KnowledgeBuilderImpl.newKnowledgeBase(KnowledgeBuilderImpl.java:79)

    at com.sample.JBPMTest.main(JBPMTest.java:23)

 

How to get parameters in script action?

Thank you!

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