Package com.gigaspaces.internal.utils.collections

Class SingleElementList<E>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<E>

com.gigaspaces.internal.utils.collections.SingleElementList<E>

Type Parameters:

E - Element to hold in list.

All Implemented Interfaces:

Iterable<E>, Collection<E>, List<E>

public final class SingleElementList<E>
extends AbstractList<E>

An unmodifiable List holding a single element. Intended to simplify code dealing with a List that in some cases may hold only one element and in others multiple elements.

Since:

6.5

Author:

moran

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor	Description
SingleElementList(E element)	Constructs a List holding one and only one element.

Method Summary

Modifier and Type	Method	Description
final E	get(int index)
final int	size()

Methods inherited from class java.util.AbstractList

add, add, addAll, clear, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, remove, removeRange, set, subList

Methods inherited from class java.util.AbstractCollection

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

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.List

addAll, contains, containsAll, isEmpty, remove, removeAll, replaceAll, retainAll, sort, spliterator, toArray, toArray

Constructor Details

SingleElementList

public SingleElementList(E element)

Constructs a List holding one and only one element.

Parameters:

element - The element the list should hold.

Method Details

get

public final E get(int index)

Specified by:

get in interface List<E>

Specified by:

get in class AbstractList<E>

size

public final int size()

Specified by:

size in interface Collection<E>

Specified by:

size in interface List<E>

Specified by:

size in class AbstractCollection<E>