Core J2EE™ Patterns: Best Practices and Design Strategies

Find Available Resources Use Case

In the Find Available Resources use case, the project manager searches for available resources for a project by start date, end date, and skills. See Figure E.10.

Figure E.10. Reserve Resource use case

Pattern Identification

For this use case, we use the following presentation patterns:

• Intercepting Filter— A filter checks user privileges for searching for available resources.

• Front Controller— A controller acts as the initial point of contact for searching for resources. The controller delegates resource availabilityrelated processing to its helpers, which in turn delegate much of this processing to the business ...