org.apache.arrow.algorithm.sort

Class GeneralOutOfPlaceVectorSorter<V extends ValueVector>

java.lang.Object

org.apache.arrow.algorithm.sort.GeneralOutOfPlaceVectorSorter<V>

Type Parameters:

V - vector type.

All Implemented Interfaces:

OutOfPlaceVectorSorter<V>

public class GeneralOutOfPlaceVectorSorter<V extends ValueVector>
extends Object
implements OutOfPlaceVectorSorter<V>

An out-of-place sorter for vectors of arbitrary type, with time complexity O(n*log(n)). Since it does not make any assumptions about the memory layout of the vector, its performance can be sub-optimal. So if another sorter is applicable (FixedWidthInPlaceVectorSorter), it should be used in preference.

Constructor Summary

Constructors

Constructor and Description
GeneralOutOfPlaceVectorSorter()

Method Summary

Modifier and Type	Method and Description
void	sortOutOfPlace(V srcVector, V dstVector, VectorValueComparator<V> comparator) Sort a vector out-of-place.

Methods inherited from class java.lang.Object

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

Constructor Detail

GeneralOutOfPlaceVectorSorter

public GeneralOutOfPlaceVectorSorter()

Method Detail

sortOutOfPlace

public void sortOutOfPlace(V srcVector,
                           V dstVector,
                           VectorValueComparator<V> comparator)

Description copied from interface: OutOfPlaceVectorSorter

Sort a vector out-of-place.

Specified by:

sortOutOfPlace in interface OutOfPlaceVectorSorter<V extends ValueVector>

Parameters:

srcVector - the input vector.

dstVector - the output vector, which has the same size as the input vector.

comparator - the criteria for sort.