Package org.agrona.collections

Class UnmodifiableCollectionView<V,E>

java.lang.Object

java.util.AbstractCollection<V>

org.agrona.collections.UnmodifiableCollectionView<V,E>

Type Parameters:

V - The type of the view.

E - The type of the underlying element.

All Implemented Interfaces:

Iterable<V>, Collection<V>

public class UnmodifiableCollectionView<V,E>
extends AbstractCollection<V>

An unmodifiable view of a collection that maps each element in an underlying collection into a view.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
final class	UnmodifiableCollectionView.ReusableIterator	A stateful reusable iterator.

Constructor Summary

Constructors

Constructor	Description
UnmodifiableCollectionView(Function<E,V> viewer, Collection<E> elements)	Constructs an unmodifiable view over collection.

Method Summary

Modifier and Type	Method	Description
UnmodifiableCollectionView<V,E>.ReusableIterator	iterator()
int	size()

Methods inherited from class java.util.AbstractCollection

add, addAll, clear, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

equals, hashCode, parallelStream, removeIf, spliterator, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Constructor Details

UnmodifiableCollectionView

public UnmodifiableCollectionView(Function<E,V> viewer,
 Collection<E> elements)

Constructs an unmodifiable view over collection.

Parameters:

viewer - function.

elements - collection to create a view for.

Method Details

size

public int size()

Specified by:

size in interface Collection<V>

Specified by:

size in class AbstractCollection<V>

iterator

public UnmodifiableCollectionView<V,E>.ReusableIterator iterator()

Specified by:

iterator in interface Collection<V>

Specified by:

iterator in interface Iterable<V>

Specified by:

iterator in class AbstractCollection<V>