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>

@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

Methods

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

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>