"Enhydra provides an interesting mix of do-it-yourself and
standards-based technology. It supports emerging Java standards but
at the same time promotes home-grown proprietary technology. (Note:
even though Enhydra uses proprietary technology, it is still an
Open-Source product. The full source code is available for all the
pieces.) For example, Enhydra supports the Java Servlet 2.2 API and
will, in the upcoming version 4.0, support Enterprise Java Beans.
But, Enhydra also provides its own proprietary technology,
especially with the xmlc compiler. Using xmlc takes you out of the
mainstream of Java standards technology and into Enhydra-only
space. This could be a real issue, except that Enhydra includes the
full source code, allowing you to better deal with the proprietary
"It's clear that Enhydra was really designed for making Enhydra
Java applications, not standards-based Java Web applications. This
isn't a complaint, just an observation. You really need to be aware
of what Enhydra offers before you go too far down a path. If you
need Enterprise Java Beans, then this probably isn't the product
"Enhydra excels at creating portal sites or sites where the
look of the Web pages frequently changes. Because you can design
the HTML pages separately from the code, your application is far
more insulated from major changes to the output look and feel than
with other Java servlet approaches."
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