[jboss-user] [JBoss jBPM] - accessing context variable map outside of session?

[simonbaker]

What is the correct way to get a processinstance context variable map if we only want to use it for "read-only" access to look up variable values outside of a jbpm session?

For example, here is an experimental method to retrieve a handle to a context variable map, but since the method opens and closes a session, is the handle still pointing to a valid map, or should we make a copy of the map to return from the method?


  | public static Map getProcessVariableMap(long LprocessId) throws Exception
  | {
  | 	Map mapVariables;
  | 
  | 	if (jbpmConfiguration == null)
  | 		jbpmConfiguration = JbpmConfiguration.getInstance();
  | 
  | 	JbpmContext jbpmContext = null;
  | 
  | 	try
  | 	{
  | 		jbpmContext = jbpmConfiguration.createJbpmContext();
  | 
  | 		ProcessInstance procinst = jbpmContext.getProcessInstance(LprocessId);
  | 
  | 		mapVariables = procinst.getContextInstance().getVariables();
  | 	}
  | 	finally
  | 	{
  | 		if (jbpmContext != null) jbpmContext.close();
  | 	}
  | 
  | 	return mapVariables;
  | }
  | 

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