jfreerails.move
Class ChangeItemInListMove

java.lang.Object
  jfreerails.move.ChangeItemInListMove

All Implemented Interfaces:

java.io.Serializable, ListMove, Move, FreerailsSerializable

Direct Known Subclasses:

ChangeCargoBundleMove, ChangeStationMove, ChangeTrainMove, ChangeTrainScheduleMove

public class ChangeItemInListMove
extends java.lang.Object
implements ListMove

All Moves that replace an item in a list with another should extend this class.

Author:

Luke

See Also:

Serialized Form

Field Summary

private FreerailsSerializable	after
private FreerailsSerializable	before
private int	index
private KEY	listKey
private FreerailsPrincipal	principal
private static long	serialVersionUID

Constructor Summary

ChangeItemInListMove(KEY k, int index, FreerailsSerializable before, FreerailsSerializable after, FreerailsPrincipal p)

Method Summary

boolean	beforeEqualsAfter()
MoveStatus	doMove(World w, FreerailsPrincipal p) Executes this move on the specifed world object.
boolean	equals(java.lang.Object o)
FreerailsSerializable	getAfter()
FreerailsSerializable	getBefore()
int	getIndex()
KEY	getKey()
FreerailsPrincipal	getPrincipal()
int	hashCode()
protected MoveStatus	move(FreerailsSerializable to, FreerailsSerializable from, World w)
java.lang.String	toString()
MoveStatus	tryDoMove(World w, FreerailsPrincipal p) Tests whether this Move can be executed on the specifed world object, this method should leave the world object unchanged.
protected MoveStatus	tryMove(FreerailsSerializable to, FreerailsSerializable from, World w)
MoveStatus	tryUndoMove(World w, FreerailsPrincipal p) Tests whether this Move can be undone on the specifed world object, this method should leave the world object unchanged.
MoveStatus	undoMove(World w, FreerailsPrincipal p) If doMove has just been executed on the specified world object, calling this method changes the state of the world object back to how it was before doMove was called.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

listKey

private final KEY listKey

index

private final int index

before

private final FreerailsSerializable before

after

private final FreerailsSerializable after

principal

private final FreerailsPrincipal principal

Constructor Detail

ChangeItemInListMove

public ChangeItemInListMove(KEY k,
                            int index,
                            FreerailsSerializable before,
                            FreerailsSerializable after,
                            FreerailsPrincipal p)

Method Detail

beforeEqualsAfter

public boolean beforeEqualsAfter()

doMove

public MoveStatus doMove(World w,
                         FreerailsPrincipal p)

Description copied from interface: Move

Executes this move on the specifed world object.

Specified by:

doMove in interface Move

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

getAfter

public FreerailsSerializable getAfter()

Specified by:

getAfter in interface ListMove

Returns:

the new item or null if not any.

getBefore

public FreerailsSerializable getBefore()

Specified by:

getBefore in interface ListMove

Returns:

the old item or null if not any.

getIndex

public int getIndex()

Specified by:

getIndex in interface ListMove

Returns:

the index of the item which changed.

getKey

public KEY getKey()

Specified by:

getKey in interface ListMove

Returns:

the type of object which was changed

getPrincipal

public FreerailsPrincipal getPrincipal()

Specified by:

getPrincipal in interface ListMove

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

move

protected MoveStatus move(FreerailsSerializable to,
                          FreerailsSerializable from,
                          World w)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

tryDoMove

public MoveStatus tryDoMove(World w,
                            FreerailsPrincipal p)

Description copied from interface: Move

Tests whether this Move can be executed on the specifed world object, this method should leave the world object unchanged.

Specified by:

tryDoMove in interface Move

tryMove

protected MoveStatus tryMove(FreerailsSerializable to,
                             FreerailsSerializable from,
                             World w)

tryUndoMove

public MoveStatus tryUndoMove(World w,
                              FreerailsPrincipal p)

Description copied from interface: Move

Tests whether this Move can be undone on the specifed world object, this method should leave the world object unchanged.

Specified by:

tryUndoMove in interface Move

undoMove

public MoveStatus undoMove(World w,
                           FreerailsPrincipal p)

Description copied from interface: Move

If doMove has just been executed on the specified world object, calling this method changes the state of the world object back to how it was before doMove was called.

Specified by:

undoMove in interface Move