Interface UnmodifiableEconomicSet<E>

All Superinterfaces:

Iterable<E>

All Known Subinterfaces:

EconomicSet<E>

public interface UnmodifiableEconomicSet<E>
extends Iterable<E>

Unmodifiable memory efficient set data structure. It does not support looking up a null element.

Since:

19.0

Method Summary

Modifier and Type	Method	Description
boolean	contains(E element)	Returns true if this set contains a mapping for the element.
default boolean	containsAll(Iterable<? extends E> coll)
boolean	isEmpty()	Returns true if this set contains no elements.
default boolean	removeIf(Predicate<? super E> filter)
int	size()	Returns the number of elements in this set.
default E[]	toArray(E[] target)	Stores all the elements in this set into target.
default HashSet<E>	toHashSet()
default List<E>	toList()

Methods inherited from interface Iterable

forEach, iterator, spliterator

Method Details

contains

boolean contains(E element)

Returns true if this set contains a mapping for the element.

Throws:

UnsupportedOperationException - if element == null

Since:

19.0

size

int size()

Returns the number of elements in this set.

Since:

19.0

isEmpty

boolean isEmpty()

Returns true if this set contains no elements.

Since:

19.0

toArray

default E[] toArray(E[] target)

Stores all the elements in this set into target. An UnsupportedOperationException will be thrown if the length of target does not match the size of this set.

Returns:

an array containing all the elements in this set.

Throws:

UnsupportedOperationException - if the length of target does not equal the size of this set.

Since:

19.0

toHashSet

default HashSet<E> toHashSet()

toList

default List<E> toList()

containsAll

default boolean containsAll(Iterable<? extends E> coll)

removeIf

default boolean removeIf(Predicate<? super E> filter)