jj2000.j2k.util
Class ArrayUtil

java.lang.Object
  |
  +--jj2000.j2k.util.ArrayUtil

public class ArrayUtil

extends java.lang.Object

This class contains a colleaction of utility static methods for arrays.

Field Summary

static int	INIT_EL_COPYING The number of elements to copy initially in an optimized array copy
static int	MAX_EL_COPYING The maximum array size to do element by element copying, larger arrays are copyied in a n optimized way.

Constructor Summary

ArrayUtil()

Method Summary

static void	byteArraySet(byte[] arr, byte val) Reinitializes a byte array to the given value in an optimized way.
static void	intArraySet(int[] arr, int val) Reinitializes an int array to the given value in an optimized way.

Methods inherited from class java.lang.Object

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

Field Detail

MAX_EL_COPYING

public static final int MAX_EL_COPYING

The maximum array size to do element by element copying, larger arrays are copyied in a n optimized way.

See Also:

Constant Field Values

INIT_EL_COPYING

public static final int INIT_EL_COPYING

The number of elements to copy initially in an optimized array copy

See Also:

Constant Field Values

Constructor Detail

ArrayUtil

public ArrayUtil()

Method Detail

intArraySet

public static void intArraySet(int[] arr,
                               int val)

Reinitializes an int array to the given value in an optimized way. If the length of the array is less than MAX_EL_COPYING, then the array is set element by element in the normal way, otherwise the first INIT_EL_COPYING elements are set element by element and then System.arraycopy is used to set the other parts of the array.

Parameters:

arr - The array to set.

val - The value to set the array to.

byteArraySet

public static void byteArraySet(byte[] arr,
                                byte val)

Reinitializes a byte array to the given value in an optimized way. If the length of the array is less than MAX_EL_COPYING, then the array is set element by element in the normal way, otherwise the first INIT_EL_COPYING elements are set element by element and then System.arraycopy is used to set the other parts of the array.

Parameters:

arr - The array to set.

val - The value to set the array to.