org.apache.flink.runtime.io.network.api.reader

类 AbstractReader

java.lang.Object

org.apache.flink.runtime.io.network.api.reader.AbstractReader

所有已实现的接口:

ReaderBase

直接已知子类:

MutableRecordReader, RecordReader

public abstract class AbstractReader
extends Object
implements ReaderBase

A basic reader implementation, which wraps an input gate and handles events.

字段概要

字段

限定符和类型	字段和说明
protected InputGate	inputGate The input gate to read from.

构造器概要

构造器

限定符	构造器和说明
protected	AbstractReader(InputGate inputGate)

方法概要

限定符和类型	方法和说明
protected boolean	handleEvent(AbstractEvent event) Handles the event and returns whether the reader reached an end-of-stream event (either the end of the whole stream or the end of an superstep).
boolean	hasReachedEndOfSuperstep()
boolean	isFinished() Returns whether the reader has consumed the input.
void	publish(TaskEvent event)
void	registerTaskEventListener(EventListener<TaskEvent> listener, Class<? extends TaskEvent> eventType)
void	sendTaskEvent(TaskEvent event)
void	setIterativeReader()
void	startNextSuperstep()

从类继承的方法 java.lang.Object

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

字段详细资料

inputGate

protected final InputGate inputGate

The input gate to read from.

构造器详细资料

AbstractReader

protected AbstractReader(InputGate inputGate)

方法详细资料

isFinished

public boolean isFinished()

从接口复制的说明: ReaderBase

Returns whether the reader has consumed the input.

指定者:

isFinished 在接口中 ReaderBase

registerTaskEventListener

public void registerTaskEventListener(EventListener<TaskEvent> listener,
                                      Class<? extends TaskEvent> eventType)

指定者:

registerTaskEventListener 在接口中 ReaderBase

sendTaskEvent

public void sendTaskEvent(TaskEvent event)
                   throws IOException

指定者:

sendTaskEvent 在接口中 ReaderBase

抛出:

IOException

handleEvent

protected boolean handleEvent(AbstractEvent event)
                       throws IOException

Handles the event and returns whether the reader reached an end-of-stream event (either the end of the whole stream or the end of an superstep).

抛出:

IOException

publish

public void publish(TaskEvent event)

setIterativeReader

public void setIterativeReader()

指定者:

setIterativeReader 在接口中 ReaderBase

startNextSuperstep

public void startNextSuperstep()

指定者:

startNextSuperstep 在接口中 ReaderBase

hasReachedEndOfSuperstep

public boolean hasReachedEndOfSuperstep()

指定者:

hasReachedEndOfSuperstep 在接口中 ReaderBase