Chapter 7. Business Tier Patterns
Topics in This Chapter
Business Delegate
Service Locator
Session Façade
Application Service
Business Object
Composite Entity
Transfer Object
Transfer Object Assembler
Value List Handler
Business Delegate
Problem
You want to hide clients from the complexity of remote communication with business service components.
When clients access remote business service components directly, the following problems can occur.
Clients interact directly with the business service interface. This means that when the business service code changes, the client code might need to be changed, as well. This increases the amount of maintenance you need to do and decreases the system's flexibility.
Another problem relates to network performance. When clients ...
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