Package org.apache.hadoop.util

Interface IndexedSorter

All Known Implementing Classes:

HeapSort, QuickSort

@LimitedPrivate("MapReduce")
@Unstable
public interface IndexedSorter

Interface for sort algorithms accepting IndexedSortable items. A sort algorithm implementing this interface may only IndexedSortable.compare(int, int) and IndexedSortable.swap(int, int) items for a range of indices to effect a sort across that range.

Method Summary

Modifier and Type	Method	Description
void	sort(IndexedSortable s, int l, int r)	Sort the items accessed through the given IndexedSortable over the given range of logical indices.
void	sort(IndexedSortable s, int l, int r, Progressable rep)	Same as sort(IndexedSortable,int,int), but indicate progress periodically.

Method Details

sort

void sort(IndexedSortable s,
 int l,
 int r)

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.

Parameters:

r - r.

l - l.

s - s.

See Also:

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

sort

void sort(IndexedSortable s,
 int l,
 int r,
 Progressable rep)

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

Parameters:

s - s.

l - l.

r - r.

rep - rep.

See Also:

• sort(IndexedSortable,int,int)