it.unimi.dsi.fastutil.bytes
Class Byte2ByteMaps

java.lang.Object
  extended by it.unimi.dsi.fastutil.bytes.Byte2ByteMaps

public class Byte2ByteMaps
extends Object

A class providing static methods and objects that do useful things with type-specific maps.

See Also:
Maps, Collections

Nested Class Summary
static class Byte2ByteMaps.EmptyMap
          An immutable class representing an empty type-specific map.
static class Byte2ByteMaps.Singleton
          An immutable class representing a type-specific singleton map.
static class Byte2ByteMaps.SynchronizedMap
          A synchronized wrapper class for maps.
static class Byte2ByteMaps.UnmodifiableMap
          An unmodifiable wrapper class for maps.
 
Field Summary
static Byte2ByteMaps.EmptyMap EMPTY_MAP
          An empty type-specific map (immutable).
 
Method Summary
static Byte2ByteMap singleton(byte key, byte value)
          Returns a type-specific immutable map containing only the specified pair.
static Byte2ByteMap singleton(Byte key, Byte value)
          Returns a type-specific immutable map containing only the specified pair.
static Byte2ByteMap synchronize(Byte2ByteMap m)
          Returns a synchronized type-specific map backed by the given type-specific map.
static Byte2ByteMap synchronize(Byte2ByteMap m, Object sync)
          Returns a synchronized type-specific map backed by the given type-specific map, using an assigned object to synchronize.
static Byte2ByteMap unmodifiable(Byte2ByteMap m)
          Returns an unmodifiable type-specific map backed by the given type-specific map.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

EMPTY_MAP

public static final Byte2ByteMaps.EmptyMap EMPTY_MAP
An empty type-specific map (immutable). It is serializable and cloneable.

Method Detail

singleton

public static Byte2ByteMap singleton(byte key,
                                     byte value)
Returns a type-specific immutable map containing only the specified pair. The returned map is serializable and cloneable.

Note that albeit the returned map is immutable, its default return value may be changed.

Parameters:
key - the only key of the returned map.
value - the only value of the returned map.
Returns:
a type-specific immutable map containing just the pair <key,value>.

singleton

public static Byte2ByteMap singleton(Byte key,
                                     Byte value)
Returns a type-specific immutable map containing only the specified pair. The returned map is serializable and cloneable.

Note that albeit the returned map is immutable, its default return value may be changed.

Parameters:
key - the only key of the returned map.
value - the only value of the returned map.
Returns:
a type-specific immutable map containing just the pair <key,value>.

synchronize

public static Byte2ByteMap synchronize(Byte2ByteMap m)
Returns a synchronized type-specific map backed by the given type-specific map.

Parameters:
m - the map to be wrapped in a synchronized map.
Returns:
a synchronized view of the specified map.
See Also:
Collections.synchronizedMap(Map)

synchronize

public static Byte2ByteMap synchronize(Byte2ByteMap m,
                                       Object sync)
Returns a synchronized type-specific map backed by the given type-specific map, using an assigned object to synchronize.

Parameters:
m - the map to be wrapped in a synchronized map.
sync - an object that will be used to synchronize the access to the map.
Returns:
a synchronized view of the specified map.
See Also:
Collections.synchronizedMap(Map)

unmodifiable

public static Byte2ByteMap unmodifiable(Byte2ByteMap m)
Returns an unmodifiable type-specific map backed by the given type-specific map.

Parameters:
m - the map to be wrapped in an unmodifiable map.
Returns:
an unmodifiable view of the specified map.
See Also:
Collections.unmodifiableMap(Map)


Copyright © 2011. All Rights Reserved.