be.fgov.ehealth.etee.crypto.utils

Class Iterables

java.lang.Object

be.fgov.ehealth.etee.crypto.utils.Iterables

public final class Iterables
extends java.lang.Object

A utility class to work easily with instances of Iterable. This class consists of factory methods that allow creation of a new Collection. These methods will infer the type of the collection.

Method Summary

Modifier and Type	Method and Description
static <T> T	first(java.lang.Iterable<T> iterable) Retrieve the first item from an Iterable.
static <T> java.util.List<T>	newImmutableList(java.util.List<? extends T> list) Create a new immutable instance of List preloaded with a given list of items.
static <T> java.util.List<T>	newImmutableList(T... items) Create a new immutable instance of List loaded with a dynamic list of items.
static <T> java.util.List<T>	newList() Create a new instance of List.
static <T> java.util.List<T>	newList(T... items) Create a new instance of List preloaded with a dynamic list of items.
static <T> java.util.Set<T>	newSet() Creates a new instance of Set.

Methods inherited from class java.lang.Object

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

Method Detail

newList

public static <T> java.util.List<T> newList()

Create a new instance of List. This method will return a new ArrayList.

Returns:

A new instance of List

newList

@SafeVarargs
public static <T> java.util.List<T> newList(T... items)

Create a new instance of List preloaded with a dynamic list of items. This method will return a new ArrayList.

Parameters:

items - A dynamic list of items that needs to be added to the list.

Returns:

A new instance of List preloaded with the given items.

newImmutableList

public static <T> java.util.List<T> newImmutableList(java.util.List<? extends T> list)

Create a new immutable instance of List preloaded with a given list of items.

Parameters:

list - An instance of List that contains items that need to be added to the immutable list.

Returns:

A new immutable instance of List.

newImmutableList

@SafeVarargs
public static <T> java.util.List<T> newImmutableList(T... items)

Create a new immutable instance of List loaded with a dynamic list of items. These items shouldn't be null or this method will throw an IllegalArgumentException.

Parameters:

items - A dynamic list of items that should be loaded in the immutable list.

Returns:

A new immutable instance of List

newSet

public static <T> java.util.Set<T> newSet()

Creates a new instance of Set. This method will return a new instance of HashSet.

Returns:

A new instance of Set

first

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

Retrieve the first item from an Iterable.

Parameters:

iterable - The iterable to retrieve the first item from.

Returns:

The first item from the given Iterable