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

Class AbstractSingleGateRecordReader<T extends IOReadableWritable>

java.lang.Object

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

org.apache.flink.runtime.io.network.api.AbstractSingleGateRecordReader<T>

Type Parameters:

T - The type of the record that can be read from this record reader.

All Implemented Interfaces:

ReaderBase

Direct Known Subclasses:

MutableRecordReader, RecordReader

public abstract class AbstractSingleGateRecordReader<T extends IOReadableWritable>
extends AbstractRecordReader

This is an abstract base class for a record reader, either dealing with mutable or immutable records.

Field Summary

Fields

Modifier and Type	Field and Description
protected InputGate<T>	inputGate The input gate associated with the record reader.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractSingleGateRecordReader(AbstractInvokable invokable)

Method Summary

Methods

Modifier and Type	Method and Description
int	getNumberOfInputChannels() Returns the number of input channels wired to this reader's input gate.
void	publishEvent(AbstractTaskEvent event) Publishes an event.

Methods inherited from class org.apache.flink.runtime.io.network.api.AbstractRecordReader

handleEvent, hasReachedEndOfSuperstep, incrementEndOfSuperstepEventAndCheck, setIterative, startNextSuperstep, subscribeToEvent, unsubscribeFromEvent

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.runtime.io.network.api.ReaderBase

isInputClosed

Field Detail

inputGate

protected final InputGate<T extends IOReadableWritable> inputGate

The input gate associated with the record reader.

Constructor Detail

AbstractSingleGateRecordReader

protected AbstractSingleGateRecordReader(AbstractInvokable invokable)

Method Detail

getNumberOfInputChannels

public int getNumberOfInputChannels()

Returns the number of input channels wired to this reader's input gate.

Returns:

the number of input channels wired to this reader's input gate

publishEvent

public void publishEvent(AbstractTaskEvent event)
                  throws IOException,
                         InterruptedException

Publishes an event.

Parameters:

event - the event to be published

Throws:

IOException - thrown if an error occurs while transmitting the event

InterruptedException - thrown if the thread is interrupted while waiting for the event to be published