Type Parameters:
V - The type of the elements.

All Superinterfaces:

IIterable<V>, Iterable<V>

All Known Subinterfaces:

IList<V>, ISet<V>

public interface ICollection<V> extends IIterable<V>

Common methods for immutable collections.

Static Methods
	Modifier and Type	Static Method and Description
	cast	`static <V> ICollection<V>` cast(ICollection<?> o) Cast a collection to a specific type. static <V> ICollection<V> cast(ICollection<?> o) Cast a collection to a specific type. This method is no more reliable than an explicit type cast, but it prevents the warning.
	concatenate	`static <V> ICollection<V>` concatenate(ICollection<? extends V>... sources) @SafeVarargs static <V> ICollection<V> concatenate(ICollection<? extends V>... sources)
	concatenate	`static <V> ICollection<V>` concatenate(IList<? extends ICollection<V>> sources) static <V> ICollection<V> concatenate(IList<? extends ICollection<V>> sources)
	concatenateIterators	`static <V> IIterator<V>` concatenateIterators(IList<? extends IIterator<V>> sources) static <V> IIterator<V> concatenateIterators(IList<? extends IIterator<V>> sources)
	emptyIterator	`static <V> IIterator<V>` emptyIterator() static <V> IIterator<V> emptyIterator()
	from	`static <T> IIterable<T>` from(Iterable<T> it) Create an `IIterable` from an `Iterable`. static <T> IIterable<T> from(Iterable<T> it) Description copied from interface: `IIterable` Create an `IIterable` from an `Iterable`. The iterators produced by the returned `IIterable` will throw a runtime exception if an iterator produced by the `Iterable` returns a null value. Parameters: `it` - The source iterable.

Methods
	Modifier and Type	Method and Description
	contains	`boolean` contains(Object target) Return true if and only if the specified element is an element of the collection. boolean contains(Object target) Return true if and only if the specified element is an element of the collection. Parameters: `target` - The element to find in the list. Returns: true if and only if `target` is an element of the collection.
	find	`<R> R` find(FindVisitor<V,R> visitor) Visit the elements of the collection until the visitor returns a non-null result. <R> R find(FindVisitor<V,R> visitor) Visit the elements of the collection until the visitor returns a non-null result. The elements are visited in the order defined by the collection (if there is one); otherwise, the visitation order is unspecified. Parameters: `visitor` - The visitor to call on the elements. Returns: the first non-null result returned by the visitor, or null if none.
	find	`<R> R` find(FindVisitor<V,R> visitor, R defaultValue) Visit each element of the collection until the visitor returns a non-null result. <R> R find(FindVisitor<V,R> visitor, R defaultValue) Visit each element of the collection until the visitor returns a non-null result. The elements are visited in the order defined by the collection (if there is one); otherwise, the visitation order is unspecified. Parameters: `visitor` - The visitor to call on the elements. `defaultValue` - The value to return if no visitor call returns a non-null result. Returns: the first non-null result returned by the visitor, or `defaultValue` if none.
	forEach	`void` forEach(Consumer<? super T> arg0) void forEach(Consumer<? super T> arg0)
	isEmpty	`boolean` isEmpty() Return true if and only if there are no elements in the collection. boolean isEmpty() Return true if and only if there are no elements in the collection.
	iterator	`abstract IIterator<T>` iterator() Returns an iterator over non-null elements of type `T`. IIterator<T> iterator() Description copied from interface: `IIterable` Returns an iterator over non-null elements of type `T`. Specified by: `iterator` in interface `Iterable<T>` Returns: an Iterator.
	size	`int` size() Return the number of elements in the collection. int size() Return the number of elements in the collection.
	sort	`IList<V>` sort() Return a list containing the members of this collection, sorted in the natural sort order. IList<V> sort() Return a list containing the members of this collection, sorted in the natural sort order. Returns: the list.
	sort	`IList<V>` sort(Comparator<? super V> c) Return a list containing the same elements as this collection, but sorted using the specified comparator. IList<V> sort(Comparator<? super V> c) Return a list containing the same elements as this collection, but sorted using the specified comparator. Parameters: `c` - The comparator used to determine the order of the elements in the returned list. Returns: the sorted list.
	spliterator	`Spliterator<V>` spliterator() Return a Spliterator that yields the elements of the collection. Spliterator<V> spliterator() Return a Spliterator that yields the elements of the collection. Specified by: `spliterator` in interface `Iterable<V>`
	stream	`Stream<V>` stream() Return a stream of the elements of the collection. Stream<V> stream() Return a stream of the elements of the collection.
	toJavaArray	`<E> E[]` toJavaArray(E[] template) Return a new Java array containing the elements of this collection. <E> E[] toJavaArray(E[] template) Return a new Java array containing the elements of this collection.
	toJavaList	`List<V>` toJavaList() Return a new Java list containing the elements of this collection, in the same order (if the collection defines an order). List<V> toJavaList() Return a new Java list containing the elements of this collection, in the same order (if the collection defines an order).
	toJavaSet	`Set<V>` toJavaSet() Return a new Java set containing the elements of this collection. Set<V> toJavaSet() Return a new Java set containing the elements of this collection.
	toJavaUnmodifiableList	`List<V>` toJavaUnmodifiableList() Return a new unmodifiable Java list containing the elements of this collection, in the same order (if the collection defines an order). List<V> toJavaUnmodifiableList() Return a new unmodifiable Java list containing the elements of this collection, in the same order (if the collection defines an order).
	toJavaUnmodifiableSet	`Set<V>` toJavaUnmodifiableSet() Return a new Java set containing the elements of this collection. Set<V> toJavaUnmodifiableSet() Return a new Java set containing the elements of this collection.
	visit	`void` visit(Visitor<V> visitor) Visit each element of the collection. void visit(Visitor<V> visitor) Visit each element of the collection. The elements are visited in the order defined by the collection (if there is one); otherwise, the visitation order is unspecified. Parameters: `visitor` - The visitor to call on the elements.

Interface ICollection<V>