org.graalvm.collections

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.

Since:

19.0

Method Summary

Modifier and Type	Method and Description
boolean	contains(E element) Returns true if this set contains a mapping for the element.
boolean	isEmpty() Returns true if this set contains no elements.
int	size() Returns the number of elements in this set.
default E[]	toArray(E[] target) Stores all of the elements in this set into target.

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Method Detail

contains

boolean contains(E element)

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

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 of 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