Package org.apache.beam.runners.spark.structuredstreaming.io.streaming

Class BeamReaderCache.CachedReader<T>

java.lang.Object

org.apache.beam.runners.spark.structuredstreaming.io.streaming.BeamReaderCache.CachedReader<T>

All Implemented Interfaces:

Closeable, AutoCloseable

Enclosing class:

BeamReaderCache

public static final class BeamReaderCache.CachedReader<T>
extends Object
implements Closeable

A live reader with the epoch it is positioned at and the coded mark taken there.

Method Summary

Modifier and Type	Method	Description
void	close()
long	positionEpoch()
UnboundedSource.UnboundedReader<T>	reader()
boolean	started()	Whether startOrAdvance() was called at least once, only then may a mark be taken.
boolean	startOrAdvance()

Methods inherited from class java.lang.Object

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

Method Details

reader

public UnboundedSource.UnboundedReader<T> reader()

startOrAdvance

public boolean startOrAdvance()
                       throws IOException

Throws:

IOException

started

public boolean started()

Whether startOrAdvance() was called at least once, only then may a mark be taken.

positionEpoch

public long positionEpoch()

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException