| Interface | Description | 
|---|---|
| ActivityBehavior | |
| ActivityExecution | |
| CompositeActivityBehavior | |
| MigrationObserverBehavior | |
| ModificationObserverBehavior | 
 When a (scope) activity behavior implements this behavior,
 its scope execution is notified in case of an external modification about the following:
 
    the scope execution is newly created
    a new concurrent execution is created in that scope
    a concurrent execution is removed in that scope
  
 | 
| SignallableActivityBehavior | |
| SubProcessActivityBehavior | 
 behavior for activities that delegate to a complete separate execution of
 a process definition. 
 | 
| TaskListener | Deprecated
 use org.camunda.bpm.engine.delegate.TaskListener instead 
 | 
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