design patterns - command pattern
DESCRIPTION
This presentation is part of the Design Pattern Series. Presentation explains the use of Command Pattern comparing it against a real life situation and then showcasing the Java implementation of the same.TRANSCRIPT
COMMAND PATTERN explained !
Prepared by Annamalai C
Copyright 2006-2011
QmPeinitiative
Copyright 2006-2011
Command Pattern in Real Life
Command Pattern is a Behavioral Pattern.
AC has a Remote Controller. RemoteController acts as the Request Generator.RemoteControl can raise 2 Requests ON and OFF. AC is the Receiver. It receives the request, executes the command to ON or OFF based on the request.
Request
On Command
Off Command
Copyright 2006-2011
Command Pattern in Java
Copyright 2006-2011
Real Life vs Java Object
On Command
Off Command
Copyright 2006-2011
Real Life vs Java Object
Remote Controller
Copyright 2006-2011
How Command Pattern works in Real Life ?
Request
On Command
Off Command
AC has a Remote Controller. RemoteController acts as the Request Generator.RemoteControl can raise 2 Requests ON and OFF. AC is the Receiver. It receives the request, executes the command to ON or OFF based on the request.
How Command Pattern works in Java ?
Copyright 2006-2011
Copyright 2006-2011
QmPeinitiative
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