com.sun.appserv.management.util.misc
Class ArrayConversion

java.lang.Object
  com.sun.appserv.management.util.misc.ArrayConversion

public final class ArrayConversion
extends Object

Provides: - methods to convert arrays of primitive types to corresponding arrays of Object types - conversion to/from Set

Method Summary

static <T> Set<T>	arrayToSet(T[] names)
static Object[]	createObjectArrayType(Class elementType, int size) Create an array whose type is elementType[] of specified size.
static boolean	hasIdenticalElementClasses(Object[] a)
static Object[]	setToArray(Set<?> s) Convert a Set to an Object[].
static Object[]	setToArray(Set<?> s, boolean specialize) Convert a Set to an array.
static Object[]	setToArray(Set<?> s, Object[] out) Convert a Set to an Object[].
static Object[]	specializeArray(Object[] a) Specialize the type of the array (if possible).
static Object[]	subArray(Object[] in, int start, int end)
static Object[]	toAppropriateType(Object array) Convert an an array of primitive types to an array of Objects of non-primitive types eg int to Integer.
static Boolean[]	toBooleans(boolean[] array)
static Byte[]	toBytes(byte[] array)
static Character[]	toCharacters(char[] array)
static Double[]	toDoubles(double[] array)
static Float[]	toFloats(float[] array)
static Integer[]	toIntegers(int[] array)
static Long[]	toLongs(long[] array)
static <T> Set<T>	toSet(T[] array)
static Short[]	toShorts(short[] array)

Methods inherited from class java.lang.Object

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

Method Detail

toAppropriateType

public static Object[] toAppropriateType(Object array)

Convert an an array of primitive types to an array of Objects of non-primitive types eg int to Integer.

Parameters:

array - the array to convert

toBooleans

public static Boolean[] toBooleans(boolean[] array)

toCharacters

public static Character[] toCharacters(char[] array)

toBytes

public static Byte[] toBytes(byte[] array)

toShorts

public static Short[] toShorts(short[] array)

toIntegers

public static Integer[] toIntegers(int[] array)

toLongs

public static Long[] toLongs(long[] array)

toFloats

public static Float[] toFloats(float[] array)

toDoubles

public static Double[] toDoubles(double[] array)

createObjectArrayType

public static Object[] createObjectArrayType(Class elementType,
                                             int size)

Create an array whose type is elementType[] of specified size.

Parameters:

elementType - the type of each entry of the array

size - the number of elements

subArray

public static Object[] subArray(Object[] in,
                                int start,
                                int end)

toSet

public static <T> Set<T> toSet(T[] array)

hasIdenticalElementClasses

public static boolean hasIdenticalElementClasses(Object[] a)

specializeArray

public static Object[] specializeArray(Object[] a)

Specialize the type of the array (if possible). For example, if the array is an Object[] of Integer, return an Integer[] of Integer.

Parameters:

a - the array to specialize

Returns:

a specialized array (if possible) otherwise the original array

setToArray

public static Object[] setToArray(Set<?> s,
                                  boolean specialize)

Convert a Set to an array. If specialize is true, then provide the most specialized type possible via specializeArray()

Parameters:

s - the Set to convert

specialize - decide whether to specialize the type or not

setToArray

public static Object[] setToArray(Set<?> s)

Convert a Set to an Object[].

Parameters:

s - the Set to convert

setToArray

public static Object[] setToArray(Set<?> s,
                                  Object[] out)

Convert a Set to an Object[].

Parameters:

s - the Set to convert

out - the output array, must be of size s.size()

arrayToSet

public static <T> Set<T> arrayToSet(T[] names)