msnJournals

Facade Pattern is a Design Pattern to hide complexity of the multiple sub systems by providing a simple interface to the client. This pattern involves a single codeunit which provides simple methods required by the client and delegates call to methods of existing internal codeunits. Class Diagram Facade pattern class diagram: Subsystem: Each class / codeunit in Subsystems has some functionality that will be accessed by client using Facade. Facade: This will be the interface f

The Rules Pattern is a Design Pattern to simplify the complex business logic which is based on multiple if-else statements.

Generic Validator Method Pattern is a design pattern which is an extension of Generic Method Pattern. Purpose of this design pattern is to validate one or more entities in a specific context. This is a very commonly used pattern in other languages, just that it is adjusted to Generic Method Pattern. Generic Method Pattern It has a public method and two business events which can be subscribed to change or extend the behaviour of the method. Public Method may contain the follow