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Hi all,

Repeating design patterns I decided to create examples of their implementation for (x)Harbour.
First two patterns.

Facade pattern:
http://code.google.com/p/santysoft/down ... akechanges

Mediator pattern:
http://code.google.com/p/santysoft/down ... akechanges

to be continued.

Singleton pattern:
http://code.google.com/p/santysoft/down ... akechanges

to be continued.

Builder pattern
http://code.google.com/p/santysoft/down ... akechanges

Two simple example using this pattern (in archive):

Computer builder and Report Builder.


to be continued.

Template method pattern
Intent. Define the skeleton of an algorithm in an operation, deferring some steps to subclasses. Template Method lets subclasses redefine certain steps of an algorithm without changing the algorithm's structure

http://code.google.com/p/santysoft/down ... akechanges


to be continued.

Decorator pattern
Intent. Attach additional responsibilities to an object dynamically. Decorators provide a flexible
alternative to subclassing for extending functionality.

http://code.google.com/p/santysoft/down ... akechanges

Factory Method pattern
Intent. Define an interface for creating an object, but let subclasses decide which class to
instantiate. Factory Method lets a class defer instantiation to subclasses.

http://code.google.com/p/santysoft/down ... akechanges

Prototype pattern
Intent. Specify the kinds of objects to create using a prototypical instance, and create new objects by
copying this prototype

http://code.google.com/p/santysoft/down ... r&can=2&q=

to be continued

Thanks Alex

Regards