fdda.core.impl
Class DemonstrationImpl

java.lang.Object
  |
  +--fdda.core.impl.DemonstrationImpl

All Implemented Interfaces:

Demonstration

public class DemonstrationImpl

extends Object

implements Demonstration

Implementation of the demonstration manager.

Author:

Jörg Rüdenauer

Constructor Summary

DemonstrationImpl()
Constructor

Method Summary

Demonstrator	getDemonstrator(Project project) Returns the demonstrator for a project.
void	pause(Project project) Pauses the demonstration of a project.
void	start(Project project, GraphicsControl graphicsControl) Starts the demonstration of a project.
void	stop(Project project) Stops the demonstration of a project.
boolean	wasDemonstrated(Project project) Returns whether a project has already been demonstrated

Methods inherited from class java.lang.Object

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

Constructor Detail

DemonstrationImpl

public DemonstrationImpl()

Constructor

Method Detail

start

public void start(Project project,
                  GraphicsControl graphicsControl)
           throws WrongStateException

Description copied from interface: Demonstration

Starts the demonstration of a project.

Specified by:

start in interface Demonstration

Parameters:

project - the project

graphicsControl - object that controls the graphics of this project

Throws:

WrongStateException - if the project is already being demonstrated

pause

public void pause(Project project)
           throws WrongStateException

Description copied from interface: Demonstration

Pauses the demonstration of a project. If the demo is already paused, continues the demonstration (i.e. it works like a switch).

Specified by:

pause in interface Demonstration

Parameters:

project - the project

Throws:

WrongStateException - if the project isn't being demonstrated

stop

public void stop(Project project)
          throws WrongStateException

Description copied from interface: Demonstration

Stops the demonstration of a project. Since the demonstration runs in another thread, it may not yet be stopped after this method returns. OTOH, at most the time for one cycle plus a small fixed time will run until the demo is stopped.

Specified by:

stop in interface Demonstration

Parameters:

project - the project

Throws:

WrongStateException - if the project isn't being demonstrated

wasDemonstrated

public boolean wasDemonstrated(Project project)

Description copied from interface: Demonstration

Returns whether a project has already been demonstrated

Specified by:

wasDemonstrated in interface Demonstration

Parameters:

project - the project

Returns:

true, iff the project has already been demonstrated

getDemonstrator

public Demonstrator getDemonstrator(Project project)
                             throws WrongStateException

Description copied from interface: Demonstration

Returns the demonstrator for a project.

Specified by:

getDemonstrator in interface Demonstration

Parameters:

project - the project

Returns:

the demonstrator

Throws:

WrongStateException - if the project wasn't demonstrated yet