Frames
The site's catalog uses frames to simultaneously display the catalog's index, or sections, and specific pages in the catalog; see Figure 11-14. The frameset is implemented as an HTML page-again, because no server page builds it. Its tagged values indicate the number of columns and rows in the frameset, as well as the page's title (Figure 11-15).
Figure 11-14. The catalog frameset design class diagram
Figure 11-15. Catalog page tagged values in Rose model
The generated code for the Catalog frameset is simple:
<HTML> <HEAD> <TITLE>Roses ...
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