java.lang.Object
- com.google.common.collect.ForwardingObject
- - com.google.common.collect.ForwardingMap<K,V>
  - - com.google.common.collect.EnumHashBiMap<K,V>

All Implemented Interfaces:

BiMap<K,V>, Serializable, Map<K,V>
```
@GwtCompatible(emulated=true)
public final class EnumHashBiMap<K extends Enum<K>,V>
extends ForwardingMap<K,V>
```
A BiMap backed by an EnumMap instance for keys-to-values, and a HashMap instance for values-to-keys. Null keys are not permitted, but null values are. An EnumHashBiMap and its inverse are both serializable.
See the Guava User Guide article on BiMap.

Since:

2.0 (imported from Google Collections Library)

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from interface java.util.Map
  Map.Entry<K extends Object,V extends Object>

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`
`boolean`	`containsValue(Object value)`
`static <K extends Enum<K>,V> EnumHashBiMap<K,V>`	`create(Class<K> keyType)`	Returns a new, empty `EnumHashBiMap` using the specified key type.
`static <K extends Enum<K>,V> EnumHashBiMap<K,V>`	`create(Map<K,? extends V> map)`	Constructs a new bimap with the same mappings as the specified map.
`Set<Map.Entry<K,V>>`	`entrySet()`
`V`	`forcePut(K key, V value)`	An alternate form of `put` that silently removes any existing entry with the value `value` before proceeding with the `BiMap.put(K, V)` operation.
`BiMap<V,K>`	`inverse()`	Returns the inverse view of this bimap, which maps each of this bimap's values to its associated key.
`Set<K>`	`keySet()`
`Class<K>`	`keyType()`	Returns the associated key type.
`V`	`put(K key, V value)`
`void`	`putAll(Map<? extends K,? extends V> map)`
`V`	`remove(Object key)`
`Set<V>`	`values()`

Methods inherited from class com.google.common.collect.ForwardingMap
containsKey, equals, get, hashCode, isEmpty, size

Methods inherited from class com.google.common.collect.ForwardingObject
toString

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, containsKey, equals, forEach, get, getOrDefault, hashCode, isEmpty, merge, putIfAbsent, remove, replace, replace, replaceAll, size

- Method Detail
  - create
```
public static <K extends Enum<K>,V> EnumHashBiMap<K,V> create(Class<K> keyType)
```
    Returns a new, empty EnumHashBiMap using the specified key type.
    
    Parameters:
    
    keyType - the key type
  - create
```
public static <K extends Enum<K>,V> EnumHashBiMap<K,V> create(Map<K,? extends V> map)
```
    Constructs a new bimap with the same mappings as the specified map. If the specified map is an EnumHashBiMap or an EnumBiMap, the new bimap has the same key type as the input bimap. Otherwise, the specified map must contain at least one mapping, in order to determine the key type.
    
    Parameters:
    
    map - the map whose mappings are to be placed in this map
    
    Throws:
    
    IllegalArgumentException - if map is not an EnumBiMap or an EnumHashBiMap instance and contains no mappings
  - put
```
public V put(K key,
             @Nullable
             V value)
```
    Description copied from interface: BiMap
    
    Specified by:
    
    put in interface BiMap<K extends Enum<K>,V>
    
    Specified by:
    
    put in interface Map<K extends Enum<K>,V>
  - forcePut
```
public V forcePut(K key,
                  @Nullable
                  V value)
```
    Description copied from interface: BiMap
    
    An alternate form of put that silently removes any existing entry with the value value before proceeding with the BiMap.put(K, V) operation. If the bimap previously contained the provided key-value mapping, this method has no effect.
    Note that a successful call to this method could cause the size of the bimap to increase by one, stay the same, or even decrease by one.
    Warning: If an existing entry with this value is removed, the key for that entry is discarded and not returned.
    
    Specified by:
    
    forcePut in interface BiMap<K extends Enum<K>,V>
    
    Parameters:
    
    key - the key with which the specified value is to be associated
    
    value - the value to be associated with the specified key
    
    Returns:
    
    the value which was previously associated with the key, which may be null, or null if there was no previous entry
  - keyType
```
public Class<K> keyType()
```
    Returns the associated key type.
  - containsValue
```
public boolean containsValue(@Nullable
                             Object value)
```
    Specified by:
    
    containsValue in interface Map<K,V>
    
    Overrides:
    
    containsValue in class ForwardingMap<K,V>
  - remove
```
public V remove(@Nullable
                Object key)
```
    Specified by:
    
    remove in interface Map<K,V>
    
    Overrides:
    
    remove in class ForwardingMap<K,V>
  - putAll
```
public void putAll(Map<? extends K,? extends V> map)
```
    Description copied from interface: BiMap
    
    Warning: the results of calling this method may vary depending on the iteration order of map.
    
    Specified by:
    
    putAll in interface BiMap<K,V>
    
    Specified by:
    
    putAll in interface Map<K,V>
    
    Overrides:
    
    putAll in class ForwardingMap<K,V>
  - clear
```
public void clear()
```
    Specified by:
    
    clear in interface Map<K,V>
    
    Overrides:
    
    clear in class ForwardingMap<K,V>
  - inverse
```
public BiMap<V,K> inverse()
```
    Description copied from interface: BiMap
    
    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.
    
    Specified by:
    
    inverse in interface BiMap<K,V>
    
    Returns:
    
    the inverse view of this bimap
  - keySet
```
public Set<K> keySet()
```
    Specified by:
    
    keySet in interface Map<K,V>
    
    Overrides:
    
    keySet in class ForwardingMap<K,V>
  - values
```
public Set<V> values()
```
    Description copied from interface: BiMap
    
    Because a bimap has unique values, this method returns a Set, instead of the Collection specified in the Map interface.
    
    Specified by:
    
    values in interface BiMap<K,V>
    
    Specified by:
    
    values in interface Map<K,V>
    
    Overrides:
    
    values in class ForwardingMap<K,V>
  - entrySet
```
public Set<Map.Entry<K,V>> entrySet()
```
    Specified by:
    
    entrySet in interface Map<K,V>
    
    Overrides:
    
    entrySet in class ForwardingMap<K,V>

Class EnumHashBiMap<K extends Enum<K>,​V>

Nested Class Summary

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

Method Summary

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

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

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Map

Method Detail

create

create

put

forcePut

keyType

containsValue

remove

putAll

clear

inverse

keySet

values

entrySet

Class EnumHashBiMap<K extends Enum<K>,V>