org.apache.myfaces.util

Class ArrayUtils


public class ArrayUtils
extends java.lang.Object

Utility class for managing arrays
Version:
$Revision: 169655 $ $Date: 2005-05-11 18:45:06 +0200 (Wed, 11 May 2005) $
Author:
Anton Koinov (latest modification by $Author: grantsmith $)

Field Summary

static Object[]
EMPTY_OBJECT_ARRAY
static String[]
EMPTY_STRING_ARRAY

Constructor Summary

ArrayUtils()

Method Summary

static Class
commonClass(Class c1, Class c2)
static Object
concat(Object arr1, Object arr2)
Concatenates two arrays into one.
static Object
concat(Object arr1, Object arr2, Object arr3)
static Object
concat(Object arr1, Object arr2, Object arr3, Object arr4)
static Object
concat(Object arr1, Object arr2, Object arr3, Object arr4, Object arr5)
static Object
concat(Object toArray, int totalLen, Object[] arrs)
static Object
concat(Object[] arrs)
Concatenates arrays into one.
static Object
concatSameType(Object toArray, Object[] arrs)
static boolean
contains(Object[] array, Object value)

Field Details

EMPTY_OBJECT_ARRAY

public static final Object[] EMPTY_OBJECT_ARRAY

EMPTY_STRING_ARRAY

public static final String[] EMPTY_STRING_ARRAY

Constructor Details

ArrayUtils

protected ArrayUtils()

Method Details

commonClass

public static Class commonClass(Class c1,
                                Class c2)

concat

public static Object concat(Object arr1,
                            Object arr2)
Concatenates two arrays into one. If arr1 is null or empty, returns arr2. If arr2 is null or empty, returns arr1. May return null if both arrays are null, or one is empty and the other null.
The concatenated array has componentType which is compatible with both input arrays (or Object[])
Parameters:
arr1 - input array
arr2 - input array
Returns:
Object the concatenated array, elements of arr1 first

concat

public static Object concat(Object arr1,
                            Object arr2,
                            Object arr3)

concat

public static Object concat(Object arr1,
                            Object arr2,
                            Object arr3,
                            Object arr4)

concat

public static Object concat(Object arr1,
                            Object arr2,
                            Object arr3,
                            Object arr4,
                            Object arr5)

concat

public static Object concat(Object toArray,
                            int totalLen,
                            Object[] arrs)

concat

public static Object concat(Object[] arrs)
Concatenates arrays into one. Any null or empty arrays are ignored. If all arrays are null or empty, returns null. Elements will be ordered in the order in which the arrays are supplied.
Parameters:
arrs - array of arrays
Returns:
the concatenated array

concatSameType

public static Object concatSameType(Object toArray,
                                    Object[] arrs)

contains

public static boolean contains(Object[] array,
                               Object value)