org.apache.flink.streaming.runtime.io

接口 StreamInputProcessor

所有超级接口:

AutoCloseable, org.apache.flink.runtime.io.AvailabilityProvider, Closeable

所有已知实现类:

StreamMultipleInputProcessor, StreamOneInputProcessor

@Internal
public interface StreamInputProcessor
extends org.apache.flink.runtime.io.AvailabilityProvider, Closeable

Interface for processing records by StreamTask.

嵌套类概要

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.runtime.io.AvailabilityProvider

AVAILABLE

方法概要

限定符和类型	方法和说明
CompletableFuture<Void>	prepareSnapshot(org.apache.flink.runtime.checkpoint.channel.ChannelStateWriter channelStateWriter, long checkpointId)
DataInputStatus	processInput() In case of two and more input processors this method must call InputSelectable.nextSelection() to choose which input to consume from next.

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

and, getAvailableFuture, isApproximatelyAvailable, isAvailable, or

从接口继承的方法 java.io.Closeable

close

方法详细资料

processInput

DataInputStatus processInput()
                      throws Exception

In case of two and more input processors this method must call InputSelectable.nextSelection() to choose which input to consume from next.

返回:

input status to estimate whether more records can be processed immediately or not. If there are no more records available at the moment and the caller should check finished state and/or AvailabilityProvider.getAvailableFuture().

抛出:

Exception

prepareSnapshot

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

抛出:

org.apache.flink.runtime.checkpoint.CheckpointException