| Name | Description | Type | Package | Framework |
| DefaultIfEmptyAction | Class | reactor.rx.action.transformation | Reactor | |
| DematerializeAction | Class | reactor.rx.action.transformation | Reactor | |
| GroupByAction | Manage a dynamic registry of substreams for a given key extracted from the incoming data. | Class | reactor.rx.action.transformation | Reactor |
| MapAction | Class | reactor.rx.action.transformation | Reactor | |
| MaterializeAction | Class | reactor.rx.action.transformation | Reactor | |
| ScanAction | Class | reactor.rx.action.transformation | Reactor | |
| SplitAction | Class | reactor.rx.action.transformation | Reactor | |