org.dizitart.no2.util

Class Iterables

java.lang.Object

org.dizitart.no2.util.Iterables

public final class Iterables
extends java.lang.Object

A utility class for Iterable.

Since:

1.0

Method Summary

Modifier and Type	Method and Description
static <T> T	firstOrDefault(java.lang.Iterable<T> iterable) Gets the first element of an Iterable or null if it is empty.
static <T extends java.lang.Comparable<? super T>> boolean	isSorted(java.lang.Iterable<T> iterable, boolean ascending) Determines whether the supplied iterable is sorted.
static <T> T[]	toArray(java.lang.Iterable<T> iterable, java.lang.Class<T> type) Converts an Iterable of type T into an array of type T.
static <T> java.util.List<T>	toList(java.lang.Iterable<T> iterable) Converts an Iterable into a List.

Methods inherited from class java.lang.Object

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

Method Detail

firstOrDefault

public static <T> T firstOrDefault(java.lang.Iterable<T> iterable)

Gets the first element of an Iterable or null if it is empty.

Type Parameters:

T - the type parameter

Parameters:

iterable - the iterable

Returns:

the first element or null.

toList

public static <T> java.util.List<T> toList(java.lang.Iterable<T> iterable)

Converts an Iterable into a List.

Type Parameters:

T - the type parameter

Parameters:

iterable - the iterable

Returns:

the list containing all elements of the iterable.

toArray

public static <T> T[] toArray(java.lang.Iterable<T> iterable,
                              java.lang.Class<T> type)

Converts an Iterable of type T into an array of type T.

Type Parameters:

T - the type parameter

Parameters:

iterable - the iterable

type - the type

Returns:

the array of type T.

isSorted

public static <T extends java.lang.Comparable<? super T>> boolean isSorted(java.lang.Iterable<T> iterable,
                                                                           boolean ascending)

Determines whether the supplied iterable is sorted.

Type Parameters:

T - the type parameter

Parameters:

iterable - the iterable

ascending - a boolean value indicating whether to sort in ascending order

Returns:

the boolean value indicating if iterable is sorted or not.