Package org.apache.flink.streaming.runtime.io

Interface Summary

Interface	Description
PushingAsyncDataInput<T>	The variant of PullingAsyncDataInput that is defined for handling both network input and source input in a unified way via PushingAsyncDataInput.emitNext(DataOutput) instead of returning Optional.empty() via PullingAsyncDataInput.pollNext().
PushingAsyncDataInput.DataOutput<T>	Basic data output interface used in emitting the next element from data input.
RecoverableStreamTaskInput<T>	A StreamTaskInput used during recovery of in-flight data.
StreamInputProcessor	Interface for processing records by StreamTask.
StreamTaskInput<T>	Basic interface for inputs of stream operators.

Class Summary

Class	Description
AbstractStreamTaskNetworkInput<T,R extends RecordDeserializer<DeserializationDelegate<StreamElement>>>	Base class for network-based StreamTaskInput where each channel has a designated RecordDeserializer for spanning records.
BlockingQueueBroker	Broker for the BlockingQueue used in StreamIterationHead and StreamIterationTail for implementing feedback streams.
FinishedDataOutput<IN>	An empty PushingAsyncDataInput.DataOutput which is used by StreamOneInputProcessor once an DataInputStatus.END_OF_DATA is received.
InputGateUtil	Utility for dealing with input gates.
MultipleFuturesAvailabilityHelper	This class is semi-thread safe.
MultipleInputSelectionHandler	This handler is mainly used for selecting the next available input index in StreamMultipleInputProcessor.
RecordProcessorUtils	Utility class for creating record processor for Input StreamOperator.
RecordWriterOutput<OUT>	Implementation of Output that sends data using a RecordWriter.
StreamMultipleInputProcessor	Input processor for MultipleInputStreamOperator.
StreamMultipleInputProcessorFactory	A factory for StreamMultipleInputProcessor.
StreamOneInputProcessor<IN>	Input reader for OneInputStreamTask.
StreamTaskExternallyInducedSourceInput<T>	A subclass of StreamTaskSourceInput for ExternallyInducedSourceReader.
StreamTaskNetworkInput<T>	Implementation of StreamTaskInput that wraps an input from network taken from CheckpointedInputGate.
StreamTaskNetworkInputFactory	Factory for StreamTaskNetworkInput and RescalingStreamTaskNetworkInput.
StreamTaskSourceInput<T>	Implementation of StreamTaskInput that reads data from the SourceOperator and returns the DataInputStatus to indicate whether the source state is available, unavailable or finished.
StreamTwoInputProcessorFactory	A factory to create StreamMultipleInputProcessor for two input case.

Enum Summary

Enum	Description
DataInputStatus	It is an internal equivalent of InputStatus that provides additional non public statuses.