Business Delegate – Design Pattern

Data flows between the tiers in the multi-tiered, when the presentation components are interacting with business services, their implementation details are exposed. The domain object is converted into business object.

In distributed applications, lookup for remote business component when applications use business component directly, application code must change to reflect changes in business component APIs.

An Intermediate class is introduced called business delegate, which decouples business components from the code that uses them.

- Decouple application tier from business tier

 The Business Delegate pattern manages the complexity of distributed component lookup and may adapt the business component interface to a simpler interface for use by views.

 

Business Delegate interacts with business tier api service for domain object.