how to signal a sub-process in 3.2.2

[dfrenkiel]

hello.

do i need to explicitly signal sub-process?

like...

processInstance.getRootToken().getSubProcessInstance().signal()

if i signal the parent process it throws a null point exception upon leaving the process-state that contains the sub-process.

java.lang.NullPointerException
at org.jbpm.graph.node.ProcessState.leave(ProcessState.java:204)
at org.jbpm.graph.exe.Token.signal(Token.java:195)
at org.jbpm.graph.exe.Token.signal(Token.java:140)
at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:271)

thanks.
david f.

[dfrenkiel]

for now we're gonna recursively look for the deepest sub-process instance and signal that (or the parent process instance if there are no sub-processes).

public void signalDeepest(ProcessInstance processInstance) {

ProcessInstance subProcess = processInstance.getRootToken().getSubProcessInstance();

if(subProcess == null) {
processInstance.signal();
}

else {
signalDeepest(subProcess);
}
}

does this seem like the right way?

thanks very much for any comments.

david f.

[dfrenkiel]

sorry. here's the method declaration in a more readable format:

public void signalProcessInstance(ProcessInstance processInstance) {

 ProcessInstance subProcessInstance =
 ProcessInstance.getRootToken().getSubProcessInstance();

 if(subProcessInstance == null) {
 processInstance.signal();
 }

 else {
 signalProcessInstance(subProcessInstance);
 }
}