AssertJ Core 3.26.0 · org.assertj.core.util.IterableUtil

Access	Constructor and Description
private	IterableUtil()

Method Summary

Modifier and Type	Method and Description
public static boolean	Returns: `true` if the given `Iterable` is `null` or empty, otherwise `false`. isNullOrEmpty(Iterable<?> the given `Iterable` to check. iterable) Indicates whether the given `Iterable` is `null` or empty.
public static <T> Iterable<T>	iterable(T... elements)
public static <T> Iterator<T>	iterator(T... elements)
private static <T> T[]	newArray(Class<T> type, int length)
public static < the type of elements of the `Iterable`. T> List<T>	Returns: all the non-`null` elements in the given `Iterable`. An empty list is returned if the given `Iterable` is `null`. nonNullElementsIn(Iterable<? extends T> the given `Iterable`. i) Returns all the non-`null` elements in the given `Iterable`.
public static int	Returns: the size of the given `Iterable`. sizeOf(Iterable<?> the `Iterable` to get size. iterable) Returns the size of the given `Iterable`.
public static < the type of elements of the `Iterable`. T> T[]	Returns: all the elements from the given `Iterable` in an array. `null` if given `Iterable` is null. toArray(Iterable<? extends T> an `Iterable` to translate in an array. iterable) Create an array from an `Iterable`.
public static < the type of elements of the `Iterable`. T> T[]	Returns: all the elements from the given `Iterable` in an array. `null` if given `Iterable` is null. toArray(Iterable<? extends T> an `Iterable` to translate in an array. iterable, Class<T> the type of the resulting array. type) Create an typed array from an `Iterable`.
public static <T> Collection<T>	toCollection(Iterable<T> iterable)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

IterableUtil	back to summary
private IterableUtil()

Method Detail

isNullOrEmpty back to summary

isNullOrEmpty	back to summary
public static boolean isNullOrEmpty(Iterable<?> iterable) Indicates whether the given `Iterable` is `null` or empty. Parameters iterable:Iterable<?> the given `Iterable` to check. Returns:boolean `true` if the given `Iterable` is `null` or empty, otherwise `false`.

public static boolean isNullOrEmpty(Iterable<?> iterable)

Indicates whether the given Iterable is null or empty.

Parameters

iterable:Iterable<?>: the given Iterable to check.

Returns:boolean

true if the given Iterable is null or empty, otherwise false.

iterable	back to summary
public static <T> Iterable<T> iterable(T... elements) Annotations @SafeVarargs

iterator	back to summary
public static <T> Iterator<T> iterator(T... elements) Annotations @SafeVarargs

newArray	back to summary
private static <T> T[] newArray(Class<T> type, int length) Annotations @SuppressWarnings:unchecked

nonNullElementsIn back to summary

nonNullElementsIn	back to summary
public static <T> List<T> nonNullElementsIn(Iterable<? extends T> i) Returns all the non-`null` elements in the given `Iterable`. Parameters <T> the type of elements of the `Iterable`. i:Iterable<? extends T> the given `Iterable`. Returns:List<T> all the non-`null` elements in the given `Iterable`. An empty list is returned if the given `Iterable` is `null`.

public static <T> List<T> nonNullElementsIn(Iterable<? extends T> i)

Returns all the non-null elements in the given Iterable.

Parameters

<T>: the type of elements of the Iterable.
i:Iterable<? extends T>: the given Iterable.

Returns:List<T>

all the non-null elements in the given Iterable. An empty list is returned if the given Iterable is null.

sizeOf back to summary

sizeOf	back to summary
public static int sizeOf(Iterable<?> iterable) Returns the size of the given `Iterable`. Parameters iterable:Iterable<?> the `Iterable` to get size. Returns:int the size of the given `Iterable`. Exceptions NullPointerException: if given `Iterable` is null.

public static int sizeOf(Iterable<?> iterable)

Returns the size of the given Iterable.

Parameters

iterable:Iterable<?>: the Iterable to get size.

Returns:int

the size of the given Iterable.

Exceptions

NullPointerException:: if given Iterable is null.

toArray back to summary

toArray	back to summary
public static <T> T[] toArray(Iterable<? extends T> iterable) Create an array from an `Iterable`. Note this method will return Object[]. If you require a typed array please use `toArray(Iterable, Class)`. It's main usage is to keep the generic type for chaining call like in: `public S containsOnlyElementsOf(Iterable<? extends T> iterable) { return containsOnly(toArray(iterable)); }` Parameters <T> the type of elements of the `Iterable`. iterable:Iterable<? extends T> an `Iterable` to translate in an array. Returns:T[] all the elements from the given `Iterable` in an array. `null` if given `Iterable` is null. Annotations @SuppressWarnings:unchecked

public static <T> T[] toArray(Iterable<? extends T> iterable)

Create an array from an Iterable.

Note

this method will return Object[]. If you require a typed array please use toArray(Iterable, Class). It's main usage is to keep the generic type for chaining call like in:

 public S containsOnlyElementsOf(Iterable<? extends T> iterable) {
  return containsOnly(toArray(iterable));
}

Parameters

<T>: the type of elements of the Iterable.
iterable:Iterable<? extends T>: an Iterable to translate in an array.

Returns:T[]

all the elements from the given Iterable in an array. null if given Iterable is null.

Annotations

@SuppressWarnings:unchecked

toArray back to summary

toArray	back to summary
public static <T> T[] toArray(Iterable<? extends T> iterable, Class<T> type) Create an typed array from an `Iterable`. Parameters <T> the type of elements of the `Iterable`. iterable:Iterable<? extends T> an `Iterable` to translate in an array. type:Class<T> the type of the resulting array. Returns:T[] all the elements from the given `Iterable` in an array. `null` if given `Iterable` is null.

public static <T> T[] toArray(Iterable<? extends T> iterable, Class<T> type)

Create an typed array from an Iterable.

Parameters

<T>: the type of elements of the Iterable.
iterable:Iterable<? extends T>: an Iterable to translate in an array.
type:Class<T>: the type of the resulting array.

Returns:T[]

all the elements from the given Iterable in an array. null if given Iterable is null.

toCollection	back to summary
public static <T> Collection<T> toCollection(Iterable<T> iterable)

public final Class IterableUtil

Constructor Summary

Method Summary

Constructor Detail

Method Detail