Package gnu.trove.decorator
Class TObjectLongMapDecorator<K>
- java.lang.Object
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- java.util.AbstractMap<K,java.lang.Long>
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- gnu.trove.decorator.TObjectLongMapDecorator<K>
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- All Implemented Interfaces:
java.io.Externalizable
,java.io.Serializable
,java.lang.Cloneable
,java.util.Map<K,java.lang.Long>
public class TObjectLongMapDecorator<K> extends java.util.AbstractMap<K,java.lang.Long> implements java.util.Map<K,java.lang.Long>, java.io.Externalizable, java.lang.Cloneable
Wrapper class to make a TObjectLongMap conform to the java.util.Map API. This class simply decorates an underlying TObjectLongMap and translates the Object-based APIs into their Trove primitive analogs.
Note that wrapping and unwrapping primitive values is extremely inefficient. If possible, users of this class should override the appropriate methods in this class and use a table of canonical values.
Created: Mon Sep 23 22:07:40 PDT 2002- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description protected TObjectLongMap<K>
_map
the wrapped primitive map
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Constructor Summary
Constructors Constructor Description TObjectLongMapDecorator()
FOR EXTERNALIZATION ONLY!!TObjectLongMapDecorator(TObjectLongMap<K> map)
Creates a wrapper that decorates the specified primitive map.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
clear()
Empties the map.boolean
containsKey(java.lang.Object key)
Checks for the present of key in the keys of the map.boolean
containsValue(java.lang.Object val)
Checks for the presence of val in the values of the map.java.util.Set<java.util.Map.Entry<K,java.lang.Long>>
entrySet()
Returns a Set view on the entries of the map.java.lang.Long
get(java.lang.Object key)
Retrieves the value for keyTObjectLongMap<K>
getMap()
Returns a reference to the map wrapped by this decorator.boolean
isEmpty()
Indicates whether map has any entries.java.lang.Long
put(K key, java.lang.Long value)
Inserts a key/value pair into the map.void
putAll(java.util.Map<? extends K,? extends java.lang.Long> map)
Copies the key/value mappings in map into this map.void
readExternal(java.io.ObjectInput in)
java.lang.Long
remove(java.lang.Object key)
Deletes a key/value pair from the map.int
size()
Returns the number of entries in the map.protected long
unwrapValue(java.lang.Object value)
Unwraps a valueprotected java.lang.Long
wrapValue(long k)
Wraps a valuevoid
writeExternal(java.io.ObjectOutput out)
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Methods inherited from class java.util.AbstractMap
clone, equals, hashCode, keySet, toString, values
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Field Detail
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_map
protected TObjectLongMap<K> _map
the wrapped primitive map
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Constructor Detail
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TObjectLongMapDecorator
public TObjectLongMapDecorator()
FOR EXTERNALIZATION ONLY!!
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TObjectLongMapDecorator
public TObjectLongMapDecorator(TObjectLongMap<K> map)
Creates a wrapper that decorates the specified primitive map.- Parameters:
map
- the TObjectLongMap to wrap.
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Method Detail
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getMap
public TObjectLongMap<K> getMap()
Returns a reference to the map wrapped by this decorator.- Returns:
- the wrapped TObjectLongMap instance.
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put
public java.lang.Long put(K key, java.lang.Long value)
Inserts a key/value pair into the map.
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get
public java.lang.Long get(java.lang.Object key)
Retrieves the value for key
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clear
public void clear()
Empties the map.
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remove
public java.lang.Long remove(java.lang.Object key)
Deletes a key/value pair from the map.
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entrySet
public java.util.Set<java.util.Map.Entry<K,java.lang.Long>> entrySet()
Returns a Set view on the entries of the map.
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containsValue
public boolean containsValue(java.lang.Object val)
Checks for the presence of val in the values of the map.
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containsKey
public boolean containsKey(java.lang.Object key)
Checks for the present of key in the keys of the map.
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size
public int size()
Returns the number of entries in the map.
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isEmpty
public boolean isEmpty()
Indicates whether map has any entries.
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putAll
public void putAll(java.util.Map<? extends K,? extends java.lang.Long> map)
Copies the key/value mappings in map into this map. Note that this will be a deep copy, as storage is by primitive value.
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wrapValue
protected java.lang.Long wrapValue(long k)
Wraps a value- Parameters:
k
- value in the underlying map- Returns:
- an Object representation of the value
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unwrapValue
protected long unwrapValue(java.lang.Object value)
Unwraps a value- Parameters:
value
- wrapped value- Returns:
- an unwrapped representation of the value
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readExternal
public void readExternal(java.io.ObjectInput in) throws java.io.IOException, java.lang.ClassNotFoundException
- Specified by:
readExternal
in interfacejava.io.Externalizable
- Throws:
java.io.IOException
java.lang.ClassNotFoundException
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writeExternal
public void writeExternal(java.io.ObjectOutput out) throws java.io.IOException
- Specified by:
writeExternal
in interfacejava.io.Externalizable
- Throws:
java.io.IOException
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