April 2004
Intermediate to advanced
606 pages
20h 4m
English
Content preview from JavaServer Faces
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Implementing the Business Logic Classes
The expense report application contains three business logic classes, shown in Figure 5-2. These classes have no dependencies on JSF (or any other presentation technology, for that matter).
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Figure 5-2. The business logic classes
A Report contains ReportEntry
instances, and Report instances are saved in a
ReportRegistry, which is an abstract class with
concrete subclasses for different storage medias. The
FileReportRegistry implements a simple
filesystem-based storage facility.
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