org.dmfs.rfc5545.recur

Class StaticUtils

java.lang.Object

org.dmfs.rfc5545.recur.StaticUtils

public final class StaticUtils
extends java.lang.Object

A collection of static methods.

Constructor Summary

Constructors

Constructor and Description
StaticUtils()

Method Summary

Modifier and Type	Method and Description
static int	linearSearch(int[] array, int i) Perform a linear search for an integer in a given array.
static int	linearSearch(long[] array, int start, int end, long l) Perform a linear search for a long in a given array.
static int	linearSearch(long[] array, long l) Perform a linear search for a long in a given array.
static int[]	ListToArray(java.util.List<java.lang.Integer> list) Convert a List of Integers to an array of ints.
static int[]	ListToSortedArray(java.util.List<java.lang.Integer> list) Convert a List of Integers to a sorted array of ints.

Methods inherited from class java.lang.Object

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

Constructor Detail

StaticUtils

public StaticUtils()

Method Detail

ListToSortedArray

public static int[] ListToSortedArray(java.util.List<java.lang.Integer> list)

Convert a List of Integers to a sorted array of ints.

Parameters:

list - The List to convert.

Returns:

an int[] or null if list is null.

ListToArray

public static int[] ListToArray(java.util.List<java.lang.Integer> list)

Convert a List of Integers to an array of ints.

Parameters:

list - The List to convert.

Returns:

an int[] or null if list is null.

linearSearch

public static int linearSearch(int[] array,
                               int i)

Perform a linear search for an integer in a given array. For small fields a linear search can be faster than a binary search. So use this if you know your field contains only few entries.

Parameters:

array - The array to search (the hay stack). Must not be null!

i - The value to search for (the needle).

Returns:

the position of the value in the array or -1 if the value has not been found.

linearSearch

public static int linearSearch(long[] array,
                               long l)

Perform a linear search for a long in a given array. For small fields a linear search can be faster than a binary search. So use this if you know your field contains only few entries.

Parameters:

array - The array to search (the hay stack). Must not be null!

l - The value to search for (the needle).

Returns:

the position of the value in the array or -1 if the value has not been found.

linearSearch

public static int linearSearch(long[] array,
                               int start,
                               int end,
                               long l)

Perform a linear search for a long in a given array. For small fields a linear search can be faster than a binary search. So use this if you know your field contains only few entries.

Parameters:

array - The array to search (the hay stack). Must not be null!

start - the inclusive start position of the range to search

end - the exclusive end position of the range to search

l - The value to search for (the needle).

Returns:

the position of the value in the array or -1 if the value has not been found.