minicp.state

Class TrailMap<K,V>

java.lang.Object

minicp.state.TrailMap<K,V>

All Implemented Interfaces:

StateMap<K,V>

public class TrailMap<K,V>
extends Object
implements StateMap<K,V>

Implementation of StateMap with trail strategy

See Also:

Trailer, StateManager.makeStateMap()

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	TrailMap(Trailer trail)

Method Summary

Modifier and Type	Method and Description
V	get(K k) Retrieves the value for a given key.
void	put(K k, V v) Inserts the key-value pair.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TrailMap

protected TrailMap(Trailer trail)

Method Detail

put

public void put(K k,
                V v)

Description copied from interface: StateMap

Inserts the key-value pair. It erases the existing ones if the map already contains an entry with the given key.

Specified by:

put in interface StateMap<K,V>

Parameters:

k - the key

v - the value

get

public V get(K k)

Description copied from interface: StateMap

Retrieves the value for a given key.

Specified by:

get in interface StateMap<K,V>

Parameters:

k - the key

Returns:

the value v if the entry (k,v) was previously put, null otherwise