com.github.andrewoma.dexx.collection
Class HashSet<E>

java.lang.Object
  com.github.andrewoma.dexx.collection.internal.base.AbstractTraversable<E>
      com.github.andrewoma.dexx.collection.internal.base.AbstractIterable<E>
          com.github.andrewoma.dexx.collection.internal.base.AbstractSet<E>
              com.github.andrewoma.dexx.collection.HashSet<E>

All Implemented Interfaces:

Set<E>, Traversable<E>, Iterable<E>

public class HashSet<E>
extends AbstractSet<E>

HashSet is an implementation of Set backed by a HashMap.

Method Summary

HashSet<E>	add(E value) Returns a set that adds the specified value if it doesn't already exist in this set.
boolean	contains(E value) Returns true if the value exists in this set.
static <E> HashSet<E>	empty()
static <E> BuilderFactory<E,HashSet<E>>	factory()
<U> void	forEach(Function<E,U> f) All collection methods can be built upon this forEach definition.
Iterator<E>	iterator()
HashSet<E>	remove(E value) Removes the specified value from the set if it exists.
int	size() Returns the size of the collection.

Methods inherited from class com.github.andrewoma.dexx.collection.internal.base.AbstractSet

asSet, equals, hashCode

Methods inherited from class com.github.andrewoma.dexx.collection.internal.base.AbstractTraversable

isEmpty, makeString, makeString, to, toArray, toArray, toIndexedList, toSet, toSortedSet, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.github.andrewoma.dexx.collection.Traversable

isEmpty, makeString, makeString, to, toArray, toArray, toIndexedList, toSet, toSortedSet

Method Detail

factory

@NotNull
public static <E> BuilderFactory<E,HashSet<E>> factory()

empty

@NotNull
public static <E> HashSet<E> empty()

add

@NotNull
public HashSet<E> add(E value)

Description copied from interface: Set

Returns a set that adds the specified value if it doesn't already exist in this set.

remove

@NotNull
public HashSet<E> remove(E value)

Description copied from interface: Set

Removes the specified value from the set if it exists.

contains

public boolean contains(E value)

Description copied from interface: Set

Returns true if the value exists in this set.

size

public int size()

Description copied from interface: Traversable

Returns the size of the collection.

Warning: infinite collections are possible, as are collections that require traversal to calculate the size.

Specified by:

size in interface Traversable<E>

Overrides:

size in class AbstractTraversable<E>

forEach

public <U> void forEach(@NotNull
                        Function<E,U> f)

Description copied from interface: Traversable

All collection methods can be built upon this forEach definition.

Specified by:

forEach in interface Traversable<E>

Overrides:

forEach in class AbstractIterable<E>

iterator

@NotNull
public Iterator<E> iterator()