com.carrotsearch.hppcrt

Class ObjectArrays

java.lang.Object

com.carrotsearch.hppcrt.ObjectArrays

@Generated(date="2017-07-11T19:16:23+0200",
           value="KTypeArrays.java")
public final class ObjectArrays
extends java.lang.Object

Utility class gathering array or ObjectIndexedContainer handling algorithms for Objects. This is a kind of complement for Arrays.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.Object[]	EMPTY public static instance of an empty array of Objects.

Method Summary

Modifier and Type	Method and Description
static <KType> void	blankArray(KType[] objectArray, int startIndex, int endIndex) Method to blank any Object[] array elements to its default value from [startIndex; endIndex[, equivalent to Arrays.fill(objectArray, startIndex, endIndex, 0 or null)
static <KType> void	reverse(KType[] table, int from, int to) Reverse the elements positions of the specified range of array table :
static <KType> void	reverse(ObjectIndexedContainer<KType> table, int from, int to) Reverse the elements positions of the specified range of ObjectIndexedContainer table :
static <KType> void	rotate(KType[] table, int from, int mid, int to) Rotate utility : Transforms the range [[slice_1: from; mid - 1][slice_2: mid, to - 1]] of table, into [[slice_2][slice_1]]in place, i.e swap the two slices while keeping their own internal order.
static <KType> void	rotate(ObjectIndexedContainer<KType> table, int from, int mid, int to) Rotate utility : Transforms the range [[slice_1: from; mid - 1][slice_2: mid, to - 1]] of ObjectIndexedContainer, into [[slice_2][slice_1]] in place, i.e swap the two slices while keeping their own internal order.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY

public static final java.lang.Object[] EMPTY

public static instance of an empty array of Objects.

Method Detail

rotate

public static <KType> void rotate(KType[] table,
                                  int from,
                                  int mid,
                                  int to)

Rotate utility : Transforms the range [[slice_1: from; mid - 1][slice_2: mid, to - 1]] of table, into [[slice_2][slice_1]]in place, i.e swap the two slices while keeping their own internal order.

Parameters:

table -

from - the start range to consider

mid - start index of the second slice

to - the array end range, exclusive

rotate

public static <KType> void rotate(ObjectIndexedContainer<KType> table,
                                  int from,
                                  int mid,
                                  int to)

Rotate utility : Transforms the range [[slice_1: from; mid - 1][slice_2: mid, to - 1]] of ObjectIndexedContainer, into [[slice_2][slice_1]] in place, i.e swap the two slices while keeping their own internal order.

Parameters:

table -

from - the start range to consider

mid - start index of the second slice

to - the array end range, exclusive

reverse

public static <KType> void reverse(KType[] table,
                                   int from,
                                   int to)

Reverse the elements positions of the specified range of array table :

Parameters:

table -

from - the start range to consider

to - the array end range, exclusive

reverse

public static <KType> void reverse(ObjectIndexedContainer<KType> table,
                                   int from,
                                   int to)

Reverse the elements positions of the specified range of ObjectIndexedContainer table :

Parameters:

table -

from - the start range to consider

to - the array end range, exclusive

blankArray

public static <KType> void blankArray(KType[] objectArray,
                                      int startIndex,
                                      int endIndex)

Method to blank any Object[] array elements to its default value from [startIndex; endIndex[, equivalent to Arrays.fill(objectArray, startIndex, endIndex, 0 or null)