| Name | Description | Type | Package | Framework |
| IORole | Enum IORole specifies how a FlowElement will be used during streaming. | Class | cascading.flow.stream.graph | Cascading |
| NodeStreamGraph | Class | cascading.flow.stream.graph | Cascading | |
| StreamGraph | Under some circumstances it may make sense to see the actual graph plan. | Class | cascading.flow.stream.graph | Cascading |