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EnumHashBiMap (Guava: Google Core Libraries for Java 11.0.1 API)























  
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com.google.common.collect


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




Since:
  2.0 (imported from Google Collections Library)
Author:
  Mike Bostock
See Also:
Serialized Form









Nested Class Summary


 


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


ForwardingMap.StandardEntrySet, ForwardingMap.StandardKeySet, ForwardingMap.StandardValues


 



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


Map.Entry<K,V>


 







Method Summary



 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.



protected  Map<K,V>
delegate()



          Returns the backing delegate instance that methods are forwarded to.



 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, standardClear, standardContainsKey, standardContainsValue, standardEquals, standardHashCode, standardIsEmpty, standardPutAll, standardRemove, standardToString


 


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


toString


 


Methods inherited from class java.lang.Object


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


 


Methods inherited from interface java.util.Map


containsKey, equals, get, hashCode, isEmpty, 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.








delegate
protected Map<K,V> delegate()

Description copied from class: ForwardingObject
Returns the backing delegate instance that methods are forwarded to.
 Abstract subclasses generally override this method with an abstract method
 that has a more specific return type, such as ForwardingSet.delegate(). Concrete subclasses override this method to supply
 the instance being decorated.


Specified by:
delegate in class ForwardingMap<K,V>








containsValue
public boolean containsValue(Object value)


Specified by:
containsValue in interface Map<K,V>
Overrides:
containsValue in class ForwardingMap<K,V>








remove
public V remove(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>

















  
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Copyright © 2010-2012. All Rights Reserved.

javadoc.com.google.common.collect.EnumHashBiMap.html Maven / Gradle / Ivy

com.google.common.collect Class EnumHashBiMap<K extends Enum<K>,V>

create

create

put

forcePut

keyType

delegate

containsValue

remove

putAll

clear

inverse

keySet

values

entrySet

com.google.common.collect
Class EnumHashBiMap<K extends Enum<K>,V>