org.apache.flink.table.runtime.operators.sort

Class ChannelReaderKVInputViewIterator<K,V>

java.lang.Object

org.apache.flink.table.runtime.operators.sort.ChannelReaderKVInputViewIterator<K,V>

All Implemented Interfaces:

MutableObjectIterator<Tuple2<K,V>>

public class ChannelReaderKVInputViewIterator<K,V>
extends Object
implements MutableObjectIterator<Tuple2<K,V>>

Key-Value style channel reader input view iterator.

Constructor Summary

Constructors

Constructor and Description
ChannelReaderKVInputViewIterator(AbstractChannelReaderInputView inView, List<MemorySegment> freeMemTarget, TypeSerializer<K> keySerializer, TypeSerializer<V> valueSerializer)

Method Summary

Modifier and Type	Method and Description
Tuple2<K,V>	next() Gets the next element from the collection.
Tuple2<K,V>	next(Tuple2<K,V> kvPair) Gets the next element from the collection.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChannelReaderKVInputViewIterator

public ChannelReaderKVInputViewIterator(AbstractChannelReaderInputView inView,
                                        List<MemorySegment> freeMemTarget,
                                        TypeSerializer<K> keySerializer,
                                        TypeSerializer<V> valueSerializer)

Method Detail

next

public Tuple2<K,V> next(Tuple2<K,V> kvPair)
                 throws IOException

Description copied from interface: MutableObjectIterator

Gets the next element from the collection. The contents of that next element is put into the given reuse object, if the type is mutable.

Specified by:

next in interface MutableObjectIterator<Tuple2<K,V>>

Parameters:

kvPair - The target object into which to place next element if E is mutable.

Returns:

The filled object or null if the iterator is exhausted.

Throws:

IOException - Thrown, if a problem occurred in the underlying I/O layer or in the serialization / deserialization logic

next

public Tuple2<K,V> next()
                 throws IOException

Description copied from interface: MutableObjectIterator

Gets the next element from the collection. The iterator implementation must obtain a new instance.

Specified by:

next in interface MutableObjectIterator<Tuple2<K,V>>

Returns:

The object or null if the iterator is exhausted.

Throws:

IOException - Thrown, if a problem occurred in the underlying I/O layer or in the serialization / deserialization logic