Class

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Class is a unit under which our business elements will be grouped together i.e. attributes and business logic

Predefined Classes or OOTB (Out Of The Box) Classes

·         In PRPC’s class hierarchy it has 13 topmost predefined classes available

·         Out of which the following 3 are most important

o   @baseclass: This is top most class in Pega. i.e. Parent class of all other classes

o   Work- : This class contains reusable components, using these components we can create Work. If we want to run our business we must have to reuse components from     this class  Work- class or any of its child classes

o   Data- : To work with database, we need to reuse the components from this class

·         All the predefined classes are reusable classes. In other words all these are abstract classes

Types of Classes in PEGA

There 2 different classes available.

1.      Abstract

2.      Concrete

Abstract Class:

·         Abstract classes are meant for reusability

·         We can only create the components under these classes, but we cannot run the business

·         PEGA 6 version, when we create an abstract class, its class name must end with ”–“ symbol. From Pega 7 onwards this has been removed.

·         Abstract class cannot be instantiated i.e. we cannot create work objects under abstract classes

Concrete Class: Concrete classes can be instantiated i.e. we can run the business under concrete classes. Concrete class name must not end with “-“ symbol