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Class scrobble.square.Square

java.lang.Object
   |
   +----scrobble.square.Square

public class Square
extends Object
implements Serializable

Square.java The Square class represents a square in the Board of Scrabble. It contains Letter objects. It is the root class of a wide hierarchy of other squares class.

See Also:: Board, Letter

generalId: The identity of the last Square created.
iconName
id: the identity of this square.
letter: Letter that is contained by the Square
o: Square must be Observable by the Square of the Client.
RQ_SQUAREEMPTY: The request which indicates that the Square becomes empty.
RQ_SQUAREGETLETTER: The request which indicates that the Square received a letter.
SQUARE_GROUP: Frame group : for communication between Square objects
squareLabel: The Panel which represents the DoubleLetterSquare.

Square(): Creates a new Square

addObserver(Observer): Adds an observer to the set of observers for this object.
checkComponent(String): Helper for the representation of the Square.
countObservers(): Returns the number of observers of this object.
createLinkframe(int, Object, int): Creates a new LinkFrame, which concerns only one Square.
deleteObserver(Observer): Deletes an observer to the set of observers for this object.
deleteObservers(): Clears the observerlist so that this object no longer has any observers.
frameReceived(Object, LinkFrame): Invoked when a new data frame is received.
getComponent(): Returns a GUI representation of the Square.
getId(): Return the Square's identity
getLetter(): Returns the letter that is contained by the Square
getNewId(): This method is called when a Square is created.
isEmpty(): Indicates if a Square is empty or not
notifyObservers(LinkFrame): Notifies all the observers of this Square that it has changed and indicates this changement by a frame.
putLetter(Letter): Puts a letter in the Square
setEmpty(): Empties the Square
toString(): Returns a string representation of the object.

letter

 transient Letter letter

Letter that is contained by the Square

generalId

 static int generalId

The identity of the last Square created.

 int id

the identity of this square.

iconName

 String iconName

 protected transient Observable o

Square must be Observable by the Square of the Client. So needs the object o to have the methods addObserver(), deleteObserver() and notifyObserver().

RQ_SQUAREEMPTY

 public static final int RQ_SQUAREEMPTY

The request which indicates that the Square becomes empty.

RQ_SQUAREGETLETTER

 public static final int RQ_SQUAREGETLETTER

The request which indicates that the Square received a letter.

SQUARE_GROUP

 public static final int SQUARE_GROUP

Frame group : for communication between Square objects

squareLabel

 JLabel squareLabel

The Panel which represents the DoubleLetterSquare.

Square

 public Square()

Creates a new Square

createLinkframe

 public LinkFrame createLinkframe(int request,
                                  Object data,
                                  int squareid)

Creates a new LinkFrame, which concerns only one Square.

Parameters:: request - the request of the frame.; data - the data of the frame (The Letter in the Square of nothing if the Square becomes Empty).; squareid - the identity of the Square which is concerned by the request.

frameReceived

 public void frameReceived(Object link,
                           LinkFrame frame)

Invoked when a new data frame is received.

Parameters:: frame - the frame that has just been received.

addObserver

 public void addObserver(Observer obs)

Adds an observer to the set of observers for this object.

Parameters:: obs - an observer to be added.

deleteObserver

 public void deleteObserver(Observer obs)

Deletes an observer to the set of observers for this object.

Parameters:: obs - the observer to be deleted

deleteObservers

 public void deleteObservers()

Clears the observerlist so that this object no longer has any observers.

notifyObservers

 public void notifyObservers(LinkFrame frame)

Notifies all the observers of this Square that it has changed and indicates this changement by a frame.

Parameters:: frame - the Linkframe that indicates the changement.

countObservers

 public int countObservers()

Returns the number of observers of this object.

Returns:: the number of observers of this object.

getNewId

 public synchronized int getNewId()

This method is called when a Square is created. It gives to this new Square his identity.

Returns:: the Square's new identity;

getId

 public int getId()

Return the Square's identity

Returns:: the Square's identity

putLetter

 public void putLetter(Letter newletter)

Puts a letter in the Square

Parameters:: newletter - the new letter contained by the Square

getLetter

 public Letter getLetter()

Returns the letter that is contained by the Square

Returns:: the letter

setEmpty

 public void setEmpty()

Empties the Square

isEmpty

 public boolean isEmpty()

Indicates if a Square is empty or not

Returns:: true if the Square is empty, false otherwise

toString

 public String toString()

Returns a string representation of the object.

Overrides:: toString in class Object

getComponent

 public Component getComponent()

Returns a GUI representation of the Square.

checkComponent

 public void checkComponent(String iconName)

Helper for the representation of the Square.

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