With so much processing dealt with by standard code what is left for the developer to do?
As little as possible.Each application has its own set of entities, and each of these entities will require its own component (class/object) in the business layer in which the business rules and task-specific behaviour can be defined. As has been stated previously processing which is common to all business objects is inherited from a standard superclass therefore does not have to be recoded.All communication with the database is handled by the Data Access Object coupled with standard code within the business layer superclass, therefore does not have to be recoded.This just leaves some small components in the Presentation layer. In order to actually ‘do’ something with a business object, such as List, Search, Create, Read, Update or Delete, it is necessary to define a transaction (task) script.
As little as possible. Each application has its own set of entities, and each of these entities will require its own component (class/object) in the business layer in which the business rules and task-specific behaviour can be defined. As has been stated previously processing which is common to all business objects is inherited from a standard superclass therefore does not have to be recoded. All communication with the database is handled by the Data Access Object coupled with standard code within the business layer superclass, therefore does not have to be recoded. This just leaves some small components in the Presentation layer. In order to actually ‘do’ something with a business object, such as List, Search, Create, Read, Update or Delete, it is necessary to define a transaction (task) script.
