org.apache.flink.hadoopcompatibility.mapred.wrapper

Class HadoopTupleUnwrappingIterator<KEY,VALUE>

java.lang.Object

org.apache.flink.api.java.operators.translation.TupleUnwrappingIterator<VALUE,KEY>

org.apache.flink.hadoopcompatibility.mapred.wrapper.HadoopTupleUnwrappingIterator<KEY,VALUE>

All Implemented Interfaces:

Serializable, Iterable<VALUE>, Iterator<VALUE>

public class HadoopTupleUnwrappingIterator<KEY,VALUE>
extends TupleUnwrappingIterator<VALUE,KEY>
implements Serializable

Wraps a Flink Tuple2 (key-value-pair) iterator into an iterator over the second (value) field.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
HadoopTupleUnwrappingIterator(org.apache.flink.api.common.typeutils.TypeSerializer<KEY> keySerializer)

Method Summary

Methods

Modifier and Type	Method and Description
KEY	getCurrentKey()
boolean	hasNext()
VALUE	next()
void	remove()
void	set(Iterator<org.apache.flink.api.java.tuple.Tuple2<KEY,VALUE>> iterator) Set the Flink iterator to wrap.

Methods inherited from class org.apache.flink.api.java.operators.translation.TupleUnwrappingIterator

getLastKey, iterator

Methods inherited from class java.lang.Object

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

Constructor Detail

HadoopTupleUnwrappingIterator

public HadoopTupleUnwrappingIterator(org.apache.flink.api.common.typeutils.TypeSerializer<KEY> keySerializer)

Method Detail

set

public void set(Iterator<org.apache.flink.api.java.tuple.Tuple2<KEY,VALUE>> iterator)

Set the Flink iterator to wrap.

Overrides:

set in class TupleUnwrappingIterator<VALUE,KEY>

Parameters:

iterator - The Flink iterator to wrap.

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<VALUE>

Overrides:

hasNext in class TupleUnwrappingIterator<VALUE,KEY>

next

public VALUE next()

Specified by:

next in interface Iterator<VALUE>

Overrides:

next in class TupleUnwrappingIterator<VALUE,KEY>

getCurrentKey

public KEY getCurrentKey()

remove

public void remove()

Specified by:

remove in interface Iterator<VALUE>

Overrides:

remove in class TupleUnwrappingIterator<VALUE,KEY>