de.alpharogroup.collections.array

Class ArrayExtensions

java.lang.Object

de.alpharogroup.collections.array.ArrayExtensions

public final class ArrayExtensions
extends Object

The class ArrayExtensions is an extensions class for use with array objects.

Constructor Summary

Constructors

Constructor and Description
ArrayExtensions()

Method Summary

Modifier and Type	Method and Description
static <T> List<T>	asList(T[] array) Creates a new List from the given array.
static <T> T	getFirst(T[] array) Gets the first object from the given array.
static <T> int	getIndex(T[] array, T element) Gets the index of the given element in the given array.
static <T> T	getLast(T[] array) Gets the last object from the given array.
static <T> int	getNextIndex(T[] array, T element) Gets the next index of the given array.
static <T> int[]	getNextIndexes(T[] array, T element, int count) Gets the next indexes from the given count of the given array.
static <T> int	getPreviousIndex(T[] array, T element) Gets the previous index of the given array.
static <T> int[]	getPreviousIndexes(T[] array, T element, int count) Gets the previous indexes from the given count of the given array.
static <T> int	indexOf(T[] array, T element) Gets the index of the given element in the given array.
static <T> boolean	isFirst(T[] array, T element) Checks if the given element is the first in the given array.
static <T> boolean	isLast(T[] array, T element) Checks if the given element is the last in the given array.
static <T> T[]	newArray(T... elements) Factory method for create new array from the given optional elements.
static byte[][]	splitInChunks(byte[] bytes, int chunkSize) Split the given byte array in to new arrays with the chunk size.
static <T> List<T>	toList(T[] array) Creates a new List from the given array.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayExtensions

public ArrayExtensions()

Method Detail

asList

public static <T> List<T> asList(T[] array)

Creates a new List from the given array.

Note: This wraps only the method asList from Arrays.asList(Object...).

Type Parameters:

T - the generic type of the objects in the array.

Parameters:

array - the array

Returns:

the new List created from the given array.

getFirst

public static <T> T getFirst(T[] array)

Gets the first object from the given array.

Type Parameters:

T - the generic type

Parameters:

array - the array.

Returns:

Returns the first object from the given array or null if the array is empty or null.

getIndex

public static <T> int getIndex(T[] array,
                               T element)

Gets the index of the given element in the given array.

Type Parameters:

T - the generic type

Parameters:

array - the array

element - the element

Returns:

the int

getLast

public static <T> T getLast(T[] array)

Gets the last object from the given array.

Type Parameters:

T - the generic type

Parameters:

array - the array.

Returns:

Returns the last object from the given array or null if the array is empty or null.

getNextIndex

public static <T> int getNextIndex(T[] array,
                                   T element)

Gets the next index of the given array.

Type Parameters:

T - the generic type

Parameters:

array - the array

element - the element

Returns:

the next index

getNextIndexes

public static <T> int[] getNextIndexes(T[] array,
                                       T element,
                                       int count)

Gets the next indexes from the given count of the given array.

Type Parameters:

T - the generic type

Parameters:

array - the array

element - the element

count - the count

Returns:

the next indexes or null if there is no next indexes.

getPreviousIndex

public static <T> int getPreviousIndex(T[] array,
                                       T element)

Gets the previous index of the given array.

Type Parameters:

T - the generic type

Parameters:

array - the array

element - the element

Returns:

the previous index

getPreviousIndexes

public static <T> int[] getPreviousIndexes(T[] array,
                                           T element,
                                           int count)

Gets the previous indexes from the given count of the given array.

Type Parameters:

T - the generic type

Parameters:

array - the array

element - the element

count - the count

Returns:

the previous indexes or null if there is no previous indexes.

indexOf

public static <T> int indexOf(T[] array,
                              T element)

Gets the index of the given element in the given array.

Type Parameters:

T - the generic type

Parameters:

array - the array

element - the element

Returns:

the int

isFirst

public static <T> boolean isFirst(T[] array,
                                  T element)

Checks if the given element is the first in the given array.

Type Parameters:

T - the generic type

Parameters:

array - the array

element - the element

Returns:

true if the given element is the first otherwise false

isLast

public static <T> boolean isLast(T[] array,
                                 T element)

Checks if the given element is the last in the given array.

Type Parameters:

T - the generic type

Parameters:

array - the array

element - the element

Returns:

true if the given element is the last otherwise false

newArray

@SafeVarargs
public static <T> T[] newArray(T... elements)

Factory method for create new array from the given optional elements.

Type Parameters:

T - the generic type of the elements

Parameters:

elements - the optional elements that will be in the returned array.

Returns:

the new array.

splitInChunks

public static byte[][] splitInChunks(byte[] bytes,
                                     int chunkSize)

Split the given byte array in to new arrays with the chunk size.

Parameters:

bytes - the bytes

chunkSize - the chunk size

Returns:

the byte[][]

toList

public static <T> List<T> toList(T[] array)

Creates a new List from the given array.

Note: This wraps only the method asList from Arrays.asList(Object...).

Type Parameters:

T - the generic type of the objects in the array.

Parameters:

array - the array

Returns:

the new List created from the given array.