gnu.trove.decorator

Class TByteByteMapDecorator

  • All Implemented Interfaces:
    Externalizable, Serializable, Cloneable, Map<Byte,Byte> 

    public class TByteByteMapDecorator
extends AbstractMap<Byte,Byte>
implements Map<Byte,Byte>, Externalizable, Cloneable
    Wrapper class to make a TByteByteMap conform to the java.util.Map API. This class simply decorates an underlying TByteByteMap 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 Detail

      • _map

        protected TByteByteMap _map
        the wrapped primitive map

    • Constructor Detail

      • TByteByteMapDecorator

        public TByteByteMapDecorator()
        FOR EXTERNALIZATION ONLY!!

      • TByteByteMapDecorator

        public TByteByteMapDecorator(TByteByteMap map)
        Creates a wrapper that decorates the specified primitive map.
        Parameters:
        map - the TByteByteMap to wrap.

    • Method Detail

      • getMap

        public TByteByteMap getMap()
        Returns a reference to the map wrapped by this decorator.
        Returns:
        the wrapped TByteByteMap instance.

      • put

        public Byte put(Byte key,
                Byte value)
        Inserts a key/value pair into the map.
        Specified by:
        put in interface  Map<Byte,Byte>
        Overrides:
        put in class  AbstractMap<Byte,Byte>
        Parameters:
        key - an Object value
        value - an Object value
        Returns:
        the previous value associated with key, or Byte(0) if none was found.

      • get

        public Byte get(Object key)
        Retrieves the value for key
        Specified by:
        get in interface  Map<Byte,Byte>
        Overrides:
        get in class  AbstractMap<Byte,Byte>
        Parameters:
        key - an Object value
        Returns:
        the value of key or null if no such mapping exists.

      • clear

        public void clear()
        Empties the map.

      • remove

        public Byte remove(Object key)
        Deletes a key/value pair from the map.
        Specified by:
        remove in interface  Map<Byte,Byte>
        Overrides:
        remove in class  AbstractMap<Byte,Byte>
        Parameters:
        key - an Object value
        Returns:
        the removed value, or null if it was not found in the map

      • size

        public int size()
        Returns the number of entries in the map.
        Specified by:
        size in interface  Map<Byte,Byte>
        Overrides:
        size in class  AbstractMap<Byte,Byte>
        Returns:
        the map's size.

      • putAll

        public void putAll(Map<? extends Byte,? extends Byte> 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.
        Specified by:
        putAll in interface  Map<Byte,Byte>
        Overrides:
        putAll in class  AbstractMap<Byte,Byte>
        Parameters:
        map - a Map value

      • wrapKey

        protected Byte wrapKey(byte k)
        Wraps a key
        Parameters:
        k - key in the underlying map
        Returns:
        an Object representation of the key

      • unwrapKey

        protected byte unwrapKey(Object key)
        Unwraps a key
        Parameters:
        key - wrapped key
        Returns:
        an unwrapped representation of the key

      • wrapValue

        protected Byte wrapValue(byte k)
        Wraps a value
        Parameters:
        k - value in the underlying map
        Returns:
        an Object representation of the value

      • unwrapValue

        protected byte unwrapValue(Object value)
        Unwraps a value
        Parameters:
        value - wrapped value
        Returns:
        an unwrapped representation of the value