Package gnu.trove.decorator
Class TObjectDoubleMapDecorator<K>
- java.lang.Object
-
- java.util.AbstractMap<K,java.lang.Double>
-
- gnu.trove.decorator.TObjectDoubleMapDecorator<K>
-
- All Implemented Interfaces:
java.io.Externalizable
,java.io.Serializable
,java.lang.Cloneable
,java.util.Map<K,java.lang.Double>
public class TObjectDoubleMapDecorator<K> extends java.util.AbstractMap<K,java.lang.Double> implements java.util.Map<K,java.lang.Double>, java.io.Externalizable, java.lang.Cloneable
Wrapper class to make a TObjectDoubleMap conform to the java.util.Map API. This class simply decorates an underlying TObjectDoubleMap 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
-
-
Field Summary
Fields Modifier and Type Field Description protected TObjectDoubleMap<K>
_map
the wrapped primitive map
-
Constructor Summary
Constructors Constructor Description TObjectDoubleMapDecorator()
FOR EXTERNALIZATION ONLY!!TObjectDoubleMapDecorator(TObjectDoubleMap<K> map)
Creates a wrapper that decorates the specified primitive map.
-
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.Double>>
entrySet()
Returns a Set view on the entries of the map.java.lang.Double
get(java.lang.Object key)
Retrieves the value for keyTObjectDoubleMap<K>
getMap()
Returns a reference to the map wrapped by this decorator.boolean
isEmpty()
Indicates whether map has any entries.java.lang.Double
put(K key, java.lang.Double value)
Inserts a key/value pair into the map.void
putAll(java.util.Map<? extends K,? extends java.lang.Double> map)
Copies the key/value mappings in map into this map.void
readExternal(java.io.ObjectInput in)
java.lang.Double
remove(java.lang.Object key)
Deletes a key/value pair from the map.int
size()
Returns the number of entries in the map.protected double
unwrapValue(java.lang.Object value)
Unwraps a valueprotected java.lang.Double
wrapValue(double k)
Wraps a valuevoid
writeExternal(java.io.ObjectOutput out)
-
Methods inherited from class java.util.AbstractMap
clone, equals, hashCode, keySet, toString, values
-
-
-
-
Field Detail
-
_map
protected TObjectDoubleMap<K> _map
the wrapped primitive map
-
-
Constructor Detail
-
TObjectDoubleMapDecorator
public TObjectDoubleMapDecorator()
FOR EXTERNALIZATION ONLY!!
-
TObjectDoubleMapDecorator
public TObjectDoubleMapDecorator(TObjectDoubleMap<K> map)
Creates a wrapper that decorates the specified primitive map.- Parameters:
map
- the TObjectDoubleMap to wrap.
-
-
Method Detail
-
getMap
public TObjectDoubleMap<K> getMap()
Returns a reference to the map wrapped by this decorator.- Returns:
- the wrapped TObjectDoubleMap instance.
-
put
public java.lang.Double put(K key, java.lang.Double value)
Inserts a key/value pair into the map.
-
get
public java.lang.Double get(java.lang.Object key)
Retrieves the value for key
-
clear
public void clear()
Empties the map.
-
remove
public java.lang.Double remove(java.lang.Object key)
Deletes a key/value pair from the map.
-
entrySet
public java.util.Set<java.util.Map.Entry<K,java.lang.Double>> entrySet()
Returns a Set view on the entries of the map.
-
containsValue
public boolean containsValue(java.lang.Object val)
Checks for the presence of val in the values of the map.
-
containsKey
public boolean containsKey(java.lang.Object key)
Checks for the present of key in the keys of the map.
-
size
public int size()
Returns the number of entries in the map.
-
isEmpty
public boolean isEmpty()
Indicates whether map has any entries.
-
putAll
public void putAll(java.util.Map<? extends K,? extends java.lang.Double> 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.
-
wrapValue
protected java.lang.Double wrapValue(double k)
Wraps a value- Parameters:
k
- value in the underlying map- Returns:
- an Object representation of the value
-
unwrapValue
protected double unwrapValue(java.lang.Object value)
Unwraps a value- Parameters:
value
- wrapped value- Returns:
- an unwrapped representation of the value
-
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
-
writeExternal
public void writeExternal(java.io.ObjectOutput out) throws java.io.IOException
- Specified by:
writeExternal
in interfacejava.io.Externalizable
- Throws:
java.io.IOException
-
-