com.google.common.collect

Class SingletonImmutableBiMap<K,V>

java.lang.Object

com.google.common.collect.ImmutableMap<K,V>

com.google.common.collect.ImmutableBiMap<K,V>

com.google.common.collect.SingletonImmutableBiMap<K,V>

All Implemented Interfaces:

BiMap<K,V>, java.io.Serializable, java.util.Map<K,V>

@GwtCompatible(serializable=true,
               emulated=true)
final class SingletonImmutableBiMap<K,V>
extends ImmutableBiMap<K,V>

Implementation of ImmutableMap with exactly one entry.

Nested Class Summary

Nested classes/interfaces inherited from class com.google.common.collect.ImmutableBiMap

ImmutableBiMap.Builder<K,V>

Nested classes/interfaces inherited from class com.google.common.collect.ImmutableMap

ImmutableMap.IteratorBasedImmutableMap<K,V>

Nested classes/interfaces inherited from interface java.util.Map

java.util.Map.Entry<K,V>

Field Summary

Fields

Modifier and Type	Field and Description
(package private) ImmutableBiMap<V,K>	inverse
(package private) K	singleKey
(package private) V	singleValue

Fields inherited from class com.google.common.collect.ImmutableMap

EMPTY_ENTRY_ARRAY

Constructor Summary

Constructors

Modifier	Constructor and Description
(package private)	SingletonImmutableBiMap(K singleKey, V singleValue)
private	SingletonImmutableBiMap(K singleKey, V singleValue, ImmutableBiMap<V,K> inverse)

Method Summary

Modifier and Type	Method and Description
boolean	containsKey(java.lang.Object key)
boolean	containsValue(java.lang.Object value)
(package private) ImmutableSet<java.util.Map.Entry<K,V>>	createEntrySet()
(package private) ImmutableSet<K>	createKeySet()
V	get(java.lang.Object key)
ImmutableBiMap<V,K>	inverse() Returns the inverse view of this bimap, which maps each of this bimap's values to its associated key.
(package private) boolean	isPartialView()
int	size()

Methods inherited from class com.google.common.collect.ImmutableBiMap

builder, copyOf, copyOf, forcePut, of, of, of, of, of, of, values, writeReplace

Methods inherited from class com.google.common.collect.ImmutableMap

asMultimap, checkNoConflict, clear, createValues, entryOf, entrySet, equals, hashCode, isEmpty, isHashCodeFast, keyIterator, keySet, put, putAll, remove, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.common.collect.BiMap

put, putAll

Methods inherited from interface java.util.Map

clear, compute, computeIfAbsent, computeIfPresent, entrySet, equals, forEach, getOrDefault, hashCode, isEmpty, keySet, merge, putIfAbsent, remove, remove, replace, replace, replaceAll

Field Detail

singleKey

final transient K singleKey

singleValue

final transient V singleValue

inverse

transient ImmutableBiMap<V,K> inverse

Constructor Detail

SingletonImmutableBiMap

SingletonImmutableBiMap(K singleKey,
                        V singleValue)

SingletonImmutableBiMap

private SingletonImmutableBiMap(K singleKey,
                                V singleValue,
                                ImmutableBiMap<V,K> inverse)

Method Detail

get

public V get(@Nullable
             java.lang.Object key)

Specified by:

get in interface java.util.Map<K,V>

Specified by:

get in class ImmutableMap<K,V>

size

public int size()

containsKey

public boolean containsKey(@Nullable
                           java.lang.Object key)

Specified by:

containsKey in interface java.util.Map<K,V>

Overrides:

containsKey in class ImmutableMap<K,V>

containsValue

public boolean containsValue(@Nullable
                             java.lang.Object value)

Specified by:

containsValue in interface java.util.Map<K,V>

Overrides:

containsValue in class ImmutableMap<K,V>

isPartialView

boolean isPartialView()

Specified by:

isPartialView in class ImmutableMap<K,V>

createEntrySet

ImmutableSet<java.util.Map.Entry<K,V>> createEntrySet()

Specified by:

createEntrySet in class ImmutableMap<K,V>

createKeySet

ImmutableSet<K> createKeySet()

Overrides:

createKeySet in class ImmutableMap<K,V>

inverse

public ImmutableBiMap<V,K> inverse()

Description copied from class: ImmutableBiMap

Returns the inverse view of this bimap, which maps each of this bimap's values to its associated key. The two bimaps are backed by the same data; any changes to one will appear in the other.

Note:There is no guaranteed correspondence between the iteration order of a bimap and that of its inverse.

The inverse of an ImmutableBiMap is another ImmutableBiMap.

Specified by:

inverse in interface BiMap<K,V>

Specified by:

inverse in class ImmutableBiMap<K,V>

Returns:

the inverse view of this bimap