J2EE Pattern

Business Delegate Pattern

Creational patterns Structural patterns Behavioral pattern J2EE patterns Abstract Factory Adapter  Chain of Responsibility MVC  Builder Bridge  Command  Business Delegate Factory method Composite  Interpreter  Composite Entity Prototype Decorator  Iterator  Data Access Object Singleton Façade Mediator  Front Controller Flyweight  Memento  Intercepting Filter Proxy  Observer  Service Locator State  Transfer Object Strategy  Template Method Visitor

Business Delegate Pattern

Define business delegate pattern

An intermediate class decouples between presentation-tier clients and business services.

Where to use & benefits

Simplify the complicated relationship. Reduce coupling. Cache results and references to remote business services. Cut potentially costly round trips Hide the underlying implementation details of business service. Related patterns include Proxy combined to simplify the complexity.