Start events define where a Process or Sub Process starts.
The process engine supports different types of start events:
The engine requires at least one start event to instantiate a process. There can be a maximum of one blank or timer start event per process definition. There can be multiple message or signal start events.
Asynchronous Instantiation
A start event may be declared as asynchronous with operaton:asyncBefore="true"
<startEvent id="startEvent" operaton:asyncBefore="true" />
This will ensure that the process engine creates a process instance when the process is instantiated, but the execution of the initial activities is not done synchronously. Instead, a job is created and asynchronously processed by the job executor. See the Asynchronous Continuations section of the User Guide for some background information.
Operaton Extensions
| Attributes | operaton:asyncBefore, operaton:asyncAfter, operaton:exclusive, operaton:formHandlerClass, operaton:formKey, operaton:formRef, operaton:formRefBinding, operaton:formRefVersion, operaton:initiator, operaton:jobPriority |
|---|---|
| Extension Elements | operaton:failedJobRetryTimeCycle, operaton:formData, operaton:formProperty, |
| Constraints | The |
The attributes | |
Only one | |
The attributes |