I am trying to creat a simple web application that demonstrates moving a token
through a process and assigning users to tasks during the process.
I am using the Spring Modules package to configure my JBPM engine. When i
try to create a processInstance and signal the token it appears that my
Taskinstance is not getting creating for my first task.
Here is my simple process Definition:
<?xml version="1.0" encoding="UTF-8"?>
<process-definition name="3step">
<!-- START-STATE -->
<start-state name="start">
</start-state>
<!-- NODES -->
<end-state name="end"/>
<task-node name="task1">
</task-node>
<task-node name="task2">
</task-node>
<task-node name="task3">
</task-node>
</process-definition>
Here is the code in my servlet:
webContext = WebApplicationContextUtils
.getRequiredWebApplicationContext(getServletContext());
jbpmConfiguration = (JbpmConfiguration) webContext
.getBean("jbpmConfiguration");
JbpmTemplate jbpmTemplate = (JbpmTemplate) webContext
.getBean("jbpmTemplate");
ProcessDefinition pd = jbpmTemplate.getProcessDefinition();
ProcessInstance processInstance = new ProcessInstance(pd);
Token token = processInstance.getRootToken();
token.signal();
TaskInstance task1 = getTaskInstanceByTaskName(processInstance,
"task1");
task1.setActorId("me");
.........
private TaskInstance getTaskInstanceByTaskName(ProcessInstance processInstance,
String taskName){
Collection taskInstances = processInstance
.getTaskMgmtInstance()
.getTaskInstances(); // this collection is always null????
Iterator i = taskInstances.iterator();
TaskInstance currentTask = null;
while (i.hasNext()){
TaskInstance task = (TaskInstance)i.next();
if (task.getName().equals(taskName)){
currentTask = task;
break;
}
}
return currentTask;
}
Can anyone shed some light on why there is no task instance for this
processInstance after the token.signal() is processed?
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