AbstractAppModel Class Reference

Inheritance diagram for AbstractAppModel:

[legend]Collaboration diagram for AbstractAppModel:

[legend]List of all members.

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Detailed Description

A basic application model which should be subclassed and specialized by specific application implementations by implementing the processEvent method.

Author:

Author

tvaline

Version:

Revision

1.3

,

Date

2005/03/05 04:06:16

Definition at line 30 of file AbstractAppModel.java.

Public Member Functions
void	actionPerformed (ActionEvent evt)
	A method to perform an processing of actions received by the application controller.
synchronized void	setController (AppModelEventListener controller) throws TooManyListenersException
	Adds the controller as a listener of this model.
String	toString ()
	Returns a string representation of this object.
Protected Member Functions
void	notifyController (ActionEvent event)
	Issues events from this application model to the application controller.
abstract ActionEvent	processEvent (ActionEvent evt)
	The method that processes incoming events.
Protected Attributes
transient AppModelEventListener	controller = null
	The controller listening to this application model.

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Member Function Documentation

void actionPerformed (  ActionEvent  evt  )

A method to perform an processing of actions received by the application controller. Parameters: evt  The event to process. Definition at line 41 of file AbstractAppModel.java. References AbstractAppModel.notifyController(), and AbstractAppModel.processEvent(). { ActionEvent response = processEvent(evt); if(response != null){notifyController(response);} }

void notifyController (  ActionEvent  event  )  [protected]

Issues events from this application model to the application controller. Parameters: event  The event to issue. Definition at line 88 of file AbstractAppModel.java. References AbstractAppModel.controller. Referenced by AbstractAppModel.actionPerformed(). { if(controller == null){return;} controller.actionPerformed(event); }

abstract ActionEvent processEvent (  ActionEvent  evt  )  [protected, pure virtual]

The method that processes incoming events. Parameters: evt  The incoming event from the controller Returns: The outgoing response event to the controller. This method should return null if no response is required. For instance if a the controller sends a request to change a model member variable but the new value is the same as the existing value, then no action need be taken, therefore no response should be generated. Referenced by AbstractAppModel.actionPerformed().

synchronized void setController (  AppModelEventListener  controller  )  throws TooManyListenersException

Adds the controller as a listener of this model. Parameters: controller  The controller that will listen to this model Exceptions: TooManyListenersException  If more than one controller is being registered. Definition at line 54 of file AbstractAppModel.java. References AbstractAppModel.controller. { if(controller == null){this.controller = null;} else { if(this.controller != null){throw new TooManyListenersException();} this.controller = controller; } }

String toString (   )

Returns a string representation of this object. Returns: The physical address of this instance. Definition at line 68 of file AbstractAppModel.java. {return super.toString();}

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Member Data Documentation

transient AppModelEventListener controller = null [protected]

The controller listening to this application model. Definition at line 33 of file AbstractAppModel.java. Referenced by AbstractAppModel.notifyController(), and AbstractAppModel.setController().

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The documentation for this class was generated from the following file:

• com/ohrasys/app/AbstractAppModel.java

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