com.google.common.collect
Class ObjectArrays

java.lang.Object
  com.google.common.collect.ObjectArrays

public final class ObjectArrays
extends java.lang.Object

Static utility methods pertaining to object arrays.

Author:

Kevin Bourrillion

Field Summary

static java.lang.Object[]

EMPTY_ARRAY An empty object array.

Method Summary

static <T> T[]	concat(T[] first, T[] second, java.lang.Class<T> type) Returns a new array that contains the concatenated contents of two arrays.
static <T> T[]	emptyArray(T[] array) Returns an empty array with the same component type as the specified array.
static <T> T[]	newArray(java.lang.Class<T> type, int length) Returns a new array of the given length with the specified component type.
static <T> T[]	newArray(T[] reference, int length) Returns a new array of the given length with the same type as a reference array.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_ARRAY

public static final java.lang.Object[] EMPTY_ARRAY

An empty object array.

Method Detail

newArray

public static <T> T[] newArray(java.lang.Class<T> type,
                               int length)

Returns a new array of the given length with the specified component type.

Parameters:

type - the component type

length - the length of the new array

newArray

public static <T> T[] newArray(T[] reference,
                               int length)

Returns a new array of the given length with the same type as a reference array.

Parameters:

reference - any array of the desired type

length - the length of the new array

emptyArray

public static <T> T[] emptyArray(T[] array)

Returns an empty array with the same component type as the specified array.

Parameters:

array - the array from which to infer the component type

concat

public static <T> T[] concat(T[] first,
                             T[] second,
                             java.lang.Class<T> type)

Returns a new array that contains the concatenated contents of two arrays.

Parameters:

first - the first array of elements to concatenate

second - the second array of elements to concatenate

type - the component type of the returned array