package com.liquidatom.derbyscore.theme;

 import javax.annotation.concurrent.GuardedBy;

 import javax.annotation.concurrent.ThreadSafe;

 /**

  * The global reference to the {@code Theme} currently being used when rendering the scoreboard 

  * can be retrieved from this factory.

  *

  * @author Russell Francis (russ@metro-six.com)

  */

 @ThreadSafe

 public class ThemeFactory {

     final static private ThemeFactory instance = new ThemeFactory();

     /**

      * Grab a reference to the ThemeFactory singleton.

      *

      * @return The global ThemeFactory instance.

      */

     static public ThemeFactory getInstance() {

         return instance;

     }

     @GuardedBy("this")

     private Theme current;

     /**

      * A private constructor to prevent instantiation.

      */

     private ThemeFactory() {

     }

     /**

      * Get the current theme used to render the scoreboard.

      *

 S     * @return The current theme used to render the scoreboard.

      */

     synchronized public Theme getCurrent() {

         return current;

     }

     /**

      * Set the current theme used to render the scoreboard.

      *

      * @param current The current theme to use to render the scoreboard.

      */

     synchronized public void setCurrent(final Theme current) {

         this.current = current;

     }

 }