org.apache.flink.streaming.runtime.io

类 StreamTaskSourceInput<T>

java.lang.Object

org.apache.flink.streaming.runtime.io.StreamTaskSourceInput<T>

所有已实现的接口:

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

@Internal
public final class StreamTaskSourceInput<T>
extends Object
implements StreamTaskInput<T>

Implementation of StreamTaskInput that reads data from the SourceOperator and returns the InputStatus to indicate whether the source state is available, unavailable or finished.

嵌套类概要

从接口继承的嵌套类/接口 org.apache.flink.streaming.runtime.io.PushingAsyncDataInput

PushingAsyncDataInput.DataOutput<T>

从接口继承的嵌套类/接口 org.apache.flink.runtime.io.AvailabilityProvider

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

字段概要

从接口继承的字段 org.apache.flink.streaming.runtime.io.StreamTaskInput

UNSPECIFIED

从接口继承的字段 org.apache.flink.runtime.io.AvailabilityProvider

AVAILABLE

构造器概要

构造器

构造器和说明
StreamTaskSourceInput(SourceOperator<T,?> operator)

方法概要

限定符和类型	方法和说明
void	close()
org.apache.flink.core.io.InputStatus	emitNext(PushingAsyncDataInput.DataOutput<T> output) Pushes the next element to the output from current data input, and returns the input status to indicate whether there are more available data in current input.
CompletableFuture<?>	getAvailableFuture()
int	getInputIndex() This method is invalid and never called by the one/source input processor.
CompletableFuture<Void>	prepareSnapshot(org.apache.flink.runtime.checkpoint.channel.ChannelStateWriter channelStateWriter, long checkpointId) Prepares to spill the in-flight input buffers as checkpoint snapshot.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 org.apache.flink.runtime.io.AvailabilityProvider

isApproximatelyAvailable, isAvailable

构造器详细资料

StreamTaskSourceInput

public StreamTaskSourceInput(SourceOperator<T,?> operator)

方法详细资料

emitNext

public org.apache.flink.core.io.InputStatus emitNext(PushingAsyncDataInput.DataOutput<T> output)
                                              throws Exception

从接口复制的说明: PushingAsyncDataInput

Pushes the next element to the output from current data input, and returns the input status to indicate whether there are more available data in current input.

This method should be non blocking.

指定者:

emitNext 在接口中 PushingAsyncDataInput<T>

抛出:

Exception

getAvailableFuture

public CompletableFuture<?> getAvailableFuture()

指定者:

getAvailableFuture 在接口中 org.apache.flink.runtime.io.AvailabilityProvider

getInputIndex

public int getInputIndex()

This method is invalid and never called by the one/source input processor.

指定者:

getInputIndex 在接口中 StreamTaskInput<T>

close

public void close()

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

prepareSnapshot

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

从接口复制的说明: StreamTaskInput

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

指定者:

prepareSnapshot 在接口中 StreamTaskInput<T>