org.apache.flink.streaming.runtime.io

Interface StreamTaskInput<T>

All Superinterfaces:

AutoCloseable, org.apache.flink.runtime.io.AvailabilityProvider, Closeable, PushingAsyncDataInput<T>

All Known Subinterfaces:

RecoverableStreamTaskInput<T>

All Known Implementing Classes:

AbstractStreamTaskNetworkInput, MultiInputSortingDataInput, RescalingStreamTaskNetworkInput, SortingDataInput, StreamTaskExternallyInducedSourceInput, StreamTaskFinishedOnRestoreSourceInput, StreamTaskNetworkInput, StreamTaskSourceInput

@Internal
public interface StreamTaskInput<T>
extends PushingAsyncDataInput<T>, Closeable

Basic interface for inputs of stream operators.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.streaming.runtime.io.PushingAsyncDataInput

PushingAsyncDataInput.DataOutput<T>

Nested classes/interfaces inherited from interface org.apache.flink.runtime.io.AvailabilityProvider

org.apache.flink.runtime.io.AvailabilityProvider.AvailabilityHelper

Field Summary

Fields

Modifier and Type	Field and Description
static int	UNSPECIFIED

Fields inherited from interface org.apache.flink.runtime.io.AvailabilityProvider

AVAILABLE

Method Summary

Modifier and Type	Method and Description
int	getInputIndex() Returns the input index of this input.
CompletableFuture<Void>	prepareSnapshot(org.apache.flink.runtime.checkpoint.channel.ChannelStateWriter channelStateWriter, long checkpointId) Prepares to spill the in-flight input buffers as checkpoint snapshot.

Methods inherited from interface org.apache.flink.streaming.runtime.io.PushingAsyncDataInput

emitNext

Methods inherited from interface org.apache.flink.runtime.io.AvailabilityProvider

and, getAvailableFuture, isApproximatelyAvailable, isAvailable, or

Methods inherited from interface java.io.Closeable

close

Field Detail

UNSPECIFIED

static final int UNSPECIFIED

See Also:

Constant Field Values

Method Detail

getInputIndex

int getInputIndex()

Returns the input index of this input.

prepareSnapshot

CompletableFuture<Void> prepareSnapshot(org.apache.flink.runtime.checkpoint.channel.ChannelStateWriter channelStateWriter,
                                        long checkpointId)
                                 throws org.apache.flink.runtime.checkpoint.CheckpointException

Prepares to spill the in-flight input buffers as checkpoint snapshot.

Throws:

org.apache.flink.runtime.checkpoint.CheckpointException