com.google.cloud.dataflow.sdk.util.common.worker

Class GroupingShuffleEntryIterator

java.lang.Object

com.google.cloud.dataflow.sdk.util.common.worker.GroupingShuffleEntryIterator

All Implemented Interfaces:

Iterator<KeyGroupedShuffleEntries>

public abstract class GroupingShuffleEntryIterator
extends Object
implements Iterator<KeyGroupedShuffleEntries>

An iterator through KeyGroupedShuffleEntries.

Constructor Summary

Constructors

Constructor and Description
GroupingShuffleEntryIterator(Reiterator<ShuffleEntry> shuffleIterator) Constructs a GroupingShuffleEntryIterator, given a Reiterator over ungrouped ShuffleEntries, assuming the ungrouped ShuffleEntries for a given key are consecutive.

Method Summary

Modifier and Type	Method and Description
boolean	hasNext()
KeyGroupedShuffleEntries	next()
protected abstract void	notifyElementRead(long byteSize) Notifies observers about a new element read.
void	remove()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Detail

GroupingShuffleEntryIterator

public GroupingShuffleEntryIterator(Reiterator<ShuffleEntry> shuffleIterator)

Constructs a GroupingShuffleEntryIterator, given a Reiterator over ungrouped ShuffleEntries, assuming the ungrouped ShuffleEntries for a given key are consecutive.

Method Detail

notifyElementRead

protected abstract void notifyElementRead(long byteSize)

Notifies observers about a new element read.

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<KeyGroupedShuffleEntries>

next

public KeyGroupedShuffleEntries next()

Specified by:

next in interface Iterator<KeyGroupedShuffleEntries>

remove

public void remove()

Specified by:

remove in interface Iterator<KeyGroupedShuffleEntries>