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Wizard API updated!
Tim Boudreau has released a new version of the Swing Wizard library (version 0.997) that fixes the WizardException bug reported in JavaWorld's recent Open Source Java Project profile. The article's examples have been reworked to test out the new, improved WizardException. Thanks, Tim, for this helpful fix!
Open Source Java Projects: The Wizard API
There are several mechanisms for achieving object persistence such as object databases and disk files. Similarly, there are many ways to share objects such as writing data to a socket or implementing CORBA- or SOM-compliant models. Each of these alternatives has its merits and should be considered carefully when you are designing your business solution. But there is also an inexpensive-yet-reliable way to deliver copies of objects around the world using technologies and services accessible by all Internet and intranet users. This is Simple Mail Transport Protocol, or SMTP.
A simple approach to storing and saving objects is to serialize the object and e-mail it to the intended recipient. This has the benefits of:
This approach also has its shortcomings. Here are just a few of them:
The relevance of these limitations is based on the nature of your application. For many business solutions, these shortcomings may not be important. Part of your job as architect and designer is to determine the best overall mechanisms by taking into consideration price, performance, and need.
There are four steps that your applet must take in order to e-mail Java objects:
This article will show you how to mail a hypothetical bug report to the quality assurance (QA) department of your firm.
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