July 2001
Beginner to intermediate
368 pages
6h 52m
English
book
Design Patterns Explained: A New Perspective on Object-Oriented Design
by Alan Shalloway, James R. Trott
Content preview from Design Patterns Explained: A New Perspective on Object-Oriented Design
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Applying the Decorator Pattern to the Case Study
In the case study, the SalesTicket is the ConcreteComponent. The concrete decorators are the headers and footers. Figure 15-5 shows the application of the Decorator pattern to the case study.
Figure 15-5. Setting up headers and footers to look like a report.
Figure 15-6 shows the application of Decorator to one header and one footer.
Figure 15-6. An example Decorator object diagram.
Each Decorator object wraps its new function around its trailing object. Each Decorator performs its added function either ...
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