rails.game.move
Class MapChange<K,V>

java.lang.Object
  rails.game.move.Move
      rails.game.move.MapChange<K,V>

public class MapChange<K,V>
extends Move

This Move class handles adding an entry to a Map.

Author:

Erik Vos

Field Summary

protected K	key
protected boolean	keyExisted
protected java.util.Map<K,V>	map
protected V	newValue
protected V	oldValue

Fields inherited from class rails.game.move.Move

log, models

Constructor Summary

MapChange(java.util.Map<K,V> map, K key, V newValue)
Creates a move that changes a map pair

Method Summary

boolean	execute()
java.lang.String	toString()
boolean	undo()

Methods inherited from class rails.game.move.Move

registerModelToUpdate, updateModels

Methods inherited from class java.lang.Object

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

Field Detail

map

protected java.util.Map<K,V> map

key

protected K key

newValue

protected V newValue

oldValue

protected V oldValue

keyExisted

protected boolean keyExisted

Constructor Detail

MapChange

public MapChange(java.util.Map<K,V> map,
                 K key,
                 V newValue)

Creates a move that changes a map pair

Method Detail

execute

public boolean execute()

Specified by:

execute in class Move

undo

public boolean undo()

Specified by:

undo in class Move

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object