org.apache.flink.api.java.operators.translation

Class TupleUnwrappingIterator<T,K>

java.lang.Object

org.apache.flink.api.java.operators.translation.TupleUnwrappingIterator<T,K>

All Implemented Interfaces:

Serializable, Iterable<T>, Iterator<T>

Direct Known Subclasses:

HadoopTupleUnwrappingIterator

@Internal
public class TupleUnwrappingIterator<T,K>
extends Object
implements Iterator<T>, Iterable<T>, Serializable

An iterator that reads 2-tuples (key value pairs) and returns only the values (second field). The iterator also tracks the keys, as the pairs flow though it.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TupleUnwrappingIterator()

Method Summary

Modifier and Type	Method and Description
K	getLastKey()
boolean	hasNext()
Iterator<T>	iterator()
T	next()
void	remove()
void	set(Iterator<Tuple2<K,T>> iterator)

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

TupleUnwrappingIterator

public TupleUnwrappingIterator()

Method Detail

set

public void set(Iterator<Tuple2<K,T>> iterator)

getLastKey

public K getLastKey()

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<T>

next

public T next()

Specified by:

next in interface Iterator<T>

remove

public void remove()

Specified by:

remove in interface Iterator<T>

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Iterable<T>