Class DualHashBidiMap
- java.lang.Object
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- org.apache.commons.collections.bidimap.AbstractDualBidiMap
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- org.apache.commons.collections.bidimap.DualHashBidiMap
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- All Implemented Interfaces:
java.io.Serializable
,java.util.Map
,BidiMap
,IterableMap
@Deprecated(since="2021-04-30") public class DualHashBidiMap extends AbstractDualBidiMap implements java.io.Serializable
Deprecated.Commons Collections 3 is in maintenance mode. Commons Collections 4 should be used instead.Implementation ofBidiMap
that uses twoHashMap
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 theBidiMap
interface.NOTE: From Commons Collections 3.1, all subclasses will use
HashMap
and the flawedcreateMap
method is ignored.- Since:
- Commons Collections 3.0
- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description DualHashBidiMap()
Deprecated.Creates an emptyHashBidiMap
.DualHashBidiMap(java.util.Map map)
Deprecated.Constructs aHashBidiMap
and copies the mappings from specifiedMap
.
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Method Summary
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Methods inherited from class org.apache.commons.collections.bidimap.AbstractDualBidiMap
clear, containsKey, containsValue, entrySet, equals, get, getKey, hashCode, inverseBidiMap, isEmpty, keySet, mapIterator, put, putAll, remove, removeValue, size, toString, values
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Constructor Detail
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DualHashBidiMap
public DualHashBidiMap()
Deprecated.Creates an emptyHashBidiMap
.
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DualHashBidiMap
public DualHashBidiMap(java.util.Map map)
Deprecated.Constructs aHashBidiMap
and copies the mappings from specifiedMap
.- Parameters:
map
- the map whose mappings are to be placed in this map
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