public class DualHashBidiMap<K,V> extends AbstractDualBidiMap<K,V> implements Serializable
BidiMap that uses two HashMap instances.
Two HashMap instances are used in this class.
This provides fast lookups at the expense of storing two sets of map entries.
Commons Collections would welcome the addition of a direct hash-based
implementation of the BidiMap interface.
NOTE: From Commons Collections 3.1, all subclasses will use HashMap
and the flawed createMap method is ignored.
AbstractDualBidiMap.BidiMapIterator<K,V>, AbstractDualBidiMap.EntrySet<K,V>, AbstractDualBidiMap.EntrySetIterator<K,V>, AbstractDualBidiMap.KeySet<K>, AbstractDualBidiMap.KeySetIterator<K>, AbstractDualBidiMap.MapEntry<K,V>, AbstractDualBidiMap.Values<V>, AbstractDualBidiMap.ValuesIterator<V>, AbstractDualBidiMap.View<K,V,E>| Modifier | Constructor and Description |
|---|---|
|
DualHashBidiMap()
Creates an empty
HashBidiMap. |
|
DualHashBidiMap(Map<? extends K,? extends V> map)
Constructs a
HashBidiMap and copies the mappings from
specified Map. |
protected |
DualHashBidiMap(Map<K,V> normalMap,
Map<V,K> reverseMap,
BidiMap<V,K> inverseBidiMap)
Constructs a
HashBidiMap that decorates the specified maps. |
| Modifier and Type | Method and Description |
|---|---|
protected BidiMap<V,K> |
createBidiMap(Map<V,K> normalMap,
Map<K,V> reverseMap,
BidiMap<K,V> inverseBidiMap)
Creates a new instance of this object.
|
clear, containsKey, containsValue, createEntrySetIterator, createKeySetIterator, createValuesIterator, entrySet, equals, get, getKey, hashCode, inverseBidiMap, isEmpty, keySet, mapIterator, put, putAll, remove, removeValue, size, toString, valuespublic DualHashBidiMap()
HashBidiMap.public DualHashBidiMap(Map<? extends K,? extends V> map)
HashBidiMap and copies the mappings from
specified Map.map - the map whose mappings are to be placed in this mapprotected BidiMap<V,K> createBidiMap(Map<V,K> normalMap, Map<K,V> reverseMap, BidiMap<K,V> inverseBidiMap)
createBidiMap in class AbstractDualBidiMap<K,V>normalMap - the normal direction mapreverseMap - the reverse direction mapinverseBidiMap - the inverse BidiMapCopyright © 2001–2013 The Apache Software Foundation. All rights reserved.