Called when the input port has a new element available.
Called when the input port has a new element available. The actual element can be retrieved via the GraphStageLogic.grab() method.
Called when the input port has failed.
Called when the input port has failed. After this callback no other callbacks will be called for this port.
Called when the input port is finished.
Called when the input port is finished. After this callback no other callbacks will be called for this port.
Collection of callbacks for an input port of a GraphStage