org.apache.flink.table.runtime.io

Class LongHashPartitionChannelReaderInputViewIterator

java.lang.Object

org.apache.flink.table.runtime.io.BinaryRowChannelInputViewIterator

org.apache.flink.table.runtime.io.LongHashPartitionChannelReaderInputViewIterator

All Implemented Interfaces:

MutableObjectIterator<BinaryRowData>

public class LongHashPartitionChannelReaderInputViewIterator
extends BinaryRowChannelInputViewIterator

A simple iterator over the input read though an I/O channel. Use LongHashPartition.deserializeFromPages(org.apache.flink.table.data.binary.BinaryRowData, org.apache.flink.runtime.io.disk.iomanager.ChannelReaderInputView, org.apache.flink.table.runtime.typeutils.BinaryRowDataSerializer)

Field Summary

Fields inherited from class org.apache.flink.table.runtime.io.BinaryRowChannelInputViewIterator

freeMemTarget, inView, serializer

Constructor Summary

Constructors

Constructor and Description
LongHashPartitionChannelReaderInputViewIterator(ChannelReaderInputView inView, BinaryRowDataSerializer serializer)

Method Summary

Modifier and Type	Method and Description
BinaryRowData	next(BinaryRowData reuse) Gets the next element from the collection.

Methods inherited from class org.apache.flink.table.runtime.io.BinaryRowChannelInputViewIterator

next

Methods inherited from class java.lang.Object

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

Constructor Detail

LongHashPartitionChannelReaderInputViewIterator

public LongHashPartitionChannelReaderInputViewIterator(ChannelReaderInputView inView,
                                                       BinaryRowDataSerializer serializer)

Method Detail

next

public BinaryRowData next(BinaryRowData reuse)
                   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<BinaryRowData>

Overrides:

next in class BinaryRowChannelInputViewIterator

Parameters:

reuse - 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