| Class | Description | 
|---|---|
| CompositeDataMovementEvent | 
 A convenience class to specify multiple DataMovementEvents which share the
 same payload. 
 | 
| CompositeRoutedDataMovementEvent | 
 A convenience class to specify multiple DataMovementEvents which share the same payload. 
 | 
| DataMovementEvent | 
 Event used by user code to send information between tasks. 
 | 
| InputConfigureVertexTasksEvent | 
 An event typically sent by the  
InputInitializer of a vertex 
 to configure the tasks of the vertex. | 
| InputDataInformationEvent | 
 Events used by  
InputInitializer implementations to provide the
 user payload for individual tasks running as part of the Vertex for which an
 Initial Input has been configured. | 
| InputInitializerEvent | 
 An event that is routed to the specified  
InputInitializer. | 
| InputReadErrorEvent | 
 Event generated by an Input to indicate error when trying to retrieve data. 
 | 
| InputUpdatePayloadEvent | 
 Events used by  
InputInitializer implementations to update the
 shared user payload for the Input that is being initialized. | 
| VertexManagerEvent | 
 Event used to send information from a Task to the VertexManager for a vertex. 
 | 
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