Package org.apache.hadoop.util

Class HeapSort

java.lang.Object

org.apache.hadoop.util.HeapSort

All Implemented Interfaces:

IndexedSorter

@Private
@Unstable
public final class HeapSort
extends Object
implements IndexedSorter

An implementation of the core algorithm of HeapSort.

Constructor Summary

Constructors

Constructor	Description
HeapSort()

Method Summary

Modifier and Type	Method	Description
void	sort(IndexedSortable s, int p, int r)	Sort the given range of items using heap sort.
void	sort(IndexedSortable s, int p, int r, Progressable rep)	Same as IndexedSorter.sort(IndexedSortable,int,int), but indicate progress periodically.

Methods inherited from class java.lang.Object

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

Constructor Details

HeapSort

public HeapSort()

Method Details

sort

public void sort(IndexedSortable s,
 int p,
 int r)

Sort the given range of items using heap sort. Sort the items accessed through the given IndexedSortable over the given range of logical indices. From the perspective of the sort algorithm, each index between l (inclusive) and r (exclusive) is an addressable entry.

Specified by:

sort in interface IndexedSorter

Parameters:

s - s.

p - l.

r - r.

See Also:

• IndexedSortable.compare(int, int)
• IndexedSortable.swap(int, int)

sort

public void sort(IndexedSortable s,
 int p,
 int r,
 Progressable rep)

Description copied from interface: IndexedSorter

Same as IndexedSorter.sort(IndexedSortable,int,int), but indicate progress periodically.

Specified by:

sort in interface IndexedSorter

Parameters:

s - s.

p - l.

r - r.

rep - rep.

See Also:

• IndexedSorter.sort(IndexedSortable,int,int)