org.apache.flink.streaming.runtime.io

接口 PushingAsyncDataInput<T>

所有超级接口:

org.apache.flink.runtime.io.AvailabilityProvider

所有已知子接口:

StreamTaskInput<T>

所有已知实现类:

SourceReaderOperator, StreamTaskNetworkInput, StreamTaskSourceInput

@Internal
public interface PushingAsyncDataInput<T>
extends org.apache.flink.runtime.io.AvailabilityProvider

The variant of PullingAsyncDataInput that is defined for handling both network input and source input in a unified way via emitNext(DataOutput) instead of returning Optional.empty() via PullingAsyncDataInput.pollNext().

嵌套类概要

嵌套类

限定符和类型	接口和说明
static interface	PushingAsyncDataInput.DataOutput<T> Basic data output interface used in emitting the next element from data input.

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
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.

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

getAvailableFuture, isApproximatelyAvailable, isAvailable

方法详细资料

emitNext

InputStatus emitNext(PushingAsyncDataInput.DataOutput<T> output)
              throws Exception

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.

抛出:

Exception