ISequencedCollection Interface

Definition

[Android.Runtime.Register("java/util/SequencedCollection", "", "Java.Util.ISequencedCollectionInvoker", ApiSince=35)]
[Java.Interop.JavaTypeParameters(new System.String[] { "E" })]
public interface ISequencedCollection : IDisposable, Java.Interop.IJavaPeerable, Java.Util.ICollection

[<Android.Runtime.Register("java/util/SequencedCollection", "", "Java.Util.ISequencedCollectionInvoker", ApiSince=35)>]
[<Java.Interop.JavaTypeParameters(new System.String[] { "E" })>]
type ISequencedCollection = interface
    interface ICollection
    interface IIterable
    interface IJavaObject
    interface IDisposable
    interface IJavaPeerable

Derived

Java.Util.AbstractList

Java.Util.ArrayDeque

Java.Util.ArrayList

Java.Util.Concurrent.ConcurrentLinkedDeque

Java.Util.Concurrent.CopyOnWriteArrayList

More…

Attributes

RegisterAttribute JavaTypeParametersAttribute

Implements

IJavaObject IJavaPeerable IIterable ICollection IDisposable

Remarks

A collection that has a well-defined encounter order, that supports operations at both ends, and that is reversible. The elements of a sequenced collection have an "encounter"> <i>encounter order</i>, where conceptually the elements have a linear arrangement from the first element to the last element. Given any two elements, one element is either before (closer to the first element) or after (closer to the last element) the other element.

(Note that this definition does not imply anything about physical positioning of elements, such as their locations in a computer's memory.)

Several methods inherited from the Collection interface are required to operate on elements according to this collection's encounter order. For instance, the Collection#iterator iterator method provides elements starting from the first element, proceeding through successive elements, until the last element. Other methods that are required to operate on elements in encounter order include the following: Iterable#forEach forEach, Collection#parallelStream parallelStream, Collection#spliterator spliterator, Collection#stream stream, and all overloads of the Collection#toArray toArray method.

This interface provides methods to add, retrieve, and remove elements at either end of the collection.

This interface also defines the #reversed reversed method, which provides a reverse-ordered view of this collection. In the reverse-ordered view, the concepts of first and last are inverted, as are the concepts of successor and predecessor. The first element of this collection is the last element of the reverse-ordered view, and vice-versa. The successor of some element in this collection is its predecessor in the reversed view, and vice-versa. All methods that respect the encounter order of the collection operate as if the encounter order is inverted. For instance, the #iterator method of the reversed view reports the elements in order from the last element of this collection to the first. The availability of the reversed method, and its impact on the ordering semantics of all applicable methods, allow convenient iteration, searching, copying, and streaming of the elements of this collection in either forward order or reverse order.

This class is a member of the Java Collections Framework.

Added in 21.

Java documentation for java.util.SequencedCollection.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Properties

Methods

Explicit Interface Implementations

Extension Methods

Applies to