org.apache.beam.sdk.io.gcp.bigquery

Class BigQueryStorageStreamSource.BigQueryStorageStreamReader<T>

java.lang.Object

org.apache.beam.sdk.io.Source.Reader<T>

org.apache.beam.sdk.io.BoundedSource.BoundedReader<T>

org.apache.beam.sdk.io.OffsetBasedSource.OffsetBasedReader<T>

org.apache.beam.sdk.io.gcp.bigquery.BigQueryStorageStreamSource.BigQueryStorageStreamReader<T>

All Implemented Interfaces:

java.lang.AutoCloseable

Enclosing class:

BigQueryStorageStreamSource<T>

@Experimental(value=SOURCE_SINK)
public static class BigQueryStorageStreamSource.BigQueryStorageStreamReader<T>
extends org.apache.beam.sdk.io.OffsetBasedSource.OffsetBasedReader<T>

A Source.Reader which reads records from a stream.

Field Summary

Fields inherited from class org.apache.beam.sdk.io.BoundedSource.BoundedReader

SPLIT_POINTS_UNKNOWN

Method Summary

Modifier and Type	Method and Description
protected boolean	advanceImpl()
boolean	allowsDynamicSplitting()
void	close()
T	getCurrent()
protected long	getCurrentOffset()
BigQueryStorageStreamSource<T>	getCurrentSource()
protected boolean	startImpl()

Methods inherited from class org.apache.beam.sdk.io.OffsetBasedSource.OffsetBasedReader

advance, getFractionConsumed, getSplitPointsConsumed, getSplitPointsRemaining, isAtSplitPoint, isDone, isStarted, splitAtFraction, start

Methods inherited from class org.apache.beam.sdk.io.BoundedSource.BoundedReader

getCurrentTimestamp

Methods inherited from class java.lang.Object

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

Method Detail

startImpl

protected boolean startImpl()
                     throws java.io.IOException

Specified by:

startImpl in class org.apache.beam.sdk.io.OffsetBasedSource.OffsetBasedReader<T>

Throws:

java.io.IOException

advanceImpl

protected boolean advanceImpl()
                       throws java.io.IOException

Specified by:

advanceImpl in class org.apache.beam.sdk.io.OffsetBasedSource.OffsetBasedReader<T>

Throws:

java.io.IOException

getCurrent

public T getCurrent()
             throws java.util.NoSuchElementException

Specified by:

getCurrent in class org.apache.beam.sdk.io.Source.Reader<T>

Throws:

java.util.NoSuchElementException

getCurrentOffset

protected long getCurrentOffset()
                         throws java.util.NoSuchElementException

Specified by:

getCurrentOffset in class org.apache.beam.sdk.io.OffsetBasedSource.OffsetBasedReader<T>

Throws:

java.util.NoSuchElementException

close

public void close()

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in class org.apache.beam.sdk.io.Source.Reader<T>

getCurrentSource

public BigQueryStorageStreamSource<T> getCurrentSource()

Overrides:

getCurrentSource in class org.apache.beam.sdk.io.OffsetBasedSource.OffsetBasedReader<T>

allowsDynamicSplitting

public boolean allowsDynamicSplitting()

Overrides:

allowsDynamicSplitting in class org.apache.beam.sdk.io.OffsetBasedSource.OffsetBasedReader<T>