Load List Values for Improved Efficiency

An anonymous reader writes "Reduce the number of database hits and improve your Web application's efficiency when you load common shared list values only once. In this code-filled article, learn to load the values for drop-down lists when your Web application starts and then to share these loaded list values among all the users of your application."

Comments

Is This Consultant on YOUR Payroll?

[rimu guy]

If you have yet to read the 25-page FA, may I present the precis:

Database hits are expensive. Reduce them where possible. For example, cache static lookup data.

The simplicity of the point however is lost in the complexity of the article. It covers web.xml settings, servlet classes, list value loaders, persistence backends for said loaders, data source 'helpers' for said loaders, custom object classes for the loaders, several subclasses for said object classes, and a jsp page (to boot). Phew.

The author refers to this design as a quick and easy approach. It is not. If you are not familiar with Java and read this article, please do not be put off. He could have demonstrated the point with a far simpler example. E.g. static variable, sql statement, jsp code, done.

[The author] has worked with IBM Global Services for one year, and has five years of experience in J2EE-related technologies. And it shows. I dread to think how much a fully realized IBM Global Services project would cost should all its consultants apply this sized sledgehammer to each small task. Hopefully the article was not written up on the client's dime as well.

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