be.yildizgames.common.collection

Interface CollectionUtil

public interface CollectionUtil

Utility class to manipulate collections.

Author:

Grégory Van den Borre

Method Summary

Modifier and Type	Method and Description
static float[]	arrayCopy(float[] arrayToCopy) Copy an array.
static <T> T[]	arrayCopy(T[] arrayToCopy) Copy an array.
static boolean	checkBiggerOrEqual(float[] a, float[] b) Check that every float in the first array are bigger than the second at the same index.
static void	cloneArray(float[] destination, float[] dataToCopy) Fill an array with the content of another.
static byte[]	concatByteArrays(byte[] array1, byte[] array2) Concatenate 2 arrays of bytes.
static <K,V> Set<V>	getOrCreateSetFromMap(Map<K,Set<V>> map, K key)

Method Detail

arrayCopy

static float[] arrayCopy(float[] arrayToCopy)

Copy an array.

Parameters:

arrayToCopy - Array to copy.

Returns:

the copy.

arrayCopy

static <T> T[] arrayCopy(T[] arrayToCopy)

Copy an array.

Type Parameters:

T - Type of objects in array.

Parameters:

arrayToCopy - Array to copy.

Returns:

the copy.

checkBiggerOrEqual

static boolean checkBiggerOrEqual(float[] a,
                                  float[] b)

Check that every float in the first array are bigger than the second at the same index. i.e: a[3] = 4 and b[3] = 2 will return false.

Parameters:

a - First array to check.

b - Second array to check.

Returns:

true if all element at same index of first array are bigger than in second array.

cloneArray

static void cloneArray(float[] destination,
                       float[] dataToCopy)

Fill an array with the content of another.

Parameters:

destination - Array to fill.

dataToCopy - Array to get data.

concatByteArrays

static byte[] concatByteArrays(byte[] array1,
                               byte[] array2)

Concatenate 2 arrays of bytes.

Parameters:

array1 - The first array.

array2 - The second array.

Returns:

A new byte array containing the 2 arrays data.

getOrCreateSetFromMap

static <K,V> Set<V> getOrCreateSetFromMap(Map<K,Set<V>> map,
                                          K key)