net.pwall.util

Class ImmutableMap.KeySet<K,V>

java.lang.Object

net.pwall.util.ImmutableBase<A>

net.pwall.util.ImmutableCollectionBase<ImmutableMap.MapEntry<K,V>,K>

net.pwall.util.ImmutableMap.KeySet<K,V>

All Implemented Interfaces:

Iterable<K>, Collection<K>, Set<K>

Enclosing class:

ImmutableMap<K,V>

public static class ImmutableMap.KeySet<K,V>
extends ImmutableCollectionBase<ImmutableMap.MapEntry<K,V>,K>
implements Set<K>

Field Summary

Fields inherited from class net.pwall.util.ImmutableBase

array, emptyArray, length

Constructor Summary

Constructors

Constructor and Description
KeySet(ImmutableMap.MapEntry<K,V>[] array, int length)

Method Summary

Modifier and Type	Method and Description
boolean	contains(Object o)
boolean	equals(Object other)
int	hashCode() Returns the hash code value for this set.
Iterator<K>	iterator()
Object[]	toArray()
<T> T[]	toArray(T[] a)

Methods inherited from class net.pwall.util.ImmutableCollectionBase

add, addAll, containsAll, remove, removeAll, retainAll, toString

Methods inherited from class net.pwall.util.ImmutableBase

clear, isEmpty, size

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Set

add, addAll, clear, containsAll, isEmpty, remove, removeAll, retainAll, size, spliterator

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Constructor Detail

KeySet

public KeySet(ImmutableMap.MapEntry<K,V>[] array,
              int length)

Method Detail

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<K>

Specified by:

contains in interface Set<K>

iterator

public Iterator<K> iterator()

Specified by:

iterator in interface Iterable<K>

Specified by:

iterator in interface Collection<K>

Specified by:

iterator in interface Set<K>

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<K>

Specified by:

toArray in interface Set<K>

toArray

public <T> T[] toArray(T[] a)

Specified by:

toArray in interface Collection<K>

Specified by:

toArray in interface Set<K>

equals

public boolean equals(Object other)

Specified by:

equals in interface Collection<K>

Specified by:

equals in interface Set<K>

Overrides:

equals in class Object

hashCode

public int hashCode()

Returns the hash code value for this set. The hash code of a set is defined to be the sum of the hash codes of the elements in the set, where the hash code of a null element is defined to be zero. This ensures that s1.equals(s2) implies that s1.hashCode() == s2.hashCode() for any two sets s1 and s2, as required by the general contract of Object.hashCode().

Specified by:

hashCode in interface Collection<K>

Specified by:

hashCode in interface Set<K>

Overrides:

hashCode in class Object

Returns:

the hash code value for this set