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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