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due to an unfortunate postproduction printing error, this article, which first appeared in the october issue of jdj (vol. 6, issue 10), was not published in its entirety. as we are committed to bringing you the best content possible, we couldnt let this article slip by. therefore we have included the complete article here, and please accept our apologies.
every other month in this column we (deepak alur, john crupi, dan malks, and other architects from the sun java center (www.sun.com/service/sunps/jdc) will discuss various topics from our book, core j2ee patterns: best practices and strategies (alur, crupi, malks, prentice hall/sun press 2001). these topics include the 15 j2ee patterns in our catalog, design strategies, bad practices, refactorings, and pattern-driven design in j2ee technology.
patterns are expert solutions - recurring designs that have
proven effective over time. this months article will provide you
with a bit more detail on the subject.
when applying patterns to the presentation tier, we address
the following:
pre- and postprocessing of a request and/or response
request handling, navigation, and dispatch
view preparation and creation
application partitioning
in other words, how do we handle a web request, managing any
necessary data access and generating presentation content for the user? how might we transform the incoming
or outgoing stream? h... 下一页