Package jj2000.j2k.util

Class ArrayUtil

  • public class ArrayUtil
extends java.lang.Object
    This class contains a colleaction of utility static methods for arrays.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      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

      Constructors 
      Constructor Description
      ArrayUtil()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      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.