So it would seam having a plugin framework wouldn't necessarily break conformance. On
the otherhand, I would still like to see the expert group to seriously consider making
plugin framework a standard feature of JSP compiler. Beyond performance, there are
other good reasons to do so.
For one, JSTL pages generate a lot of out.print("\r\n") when <c:choose>
statemetns are used. Rather than have a tag handle the body and trim, I would prefer
to see a plugin framework that gives application developers the ability to strip out
extra control linefeeds or spaces. For example, some one may want to format their jsp
code so it is easier to read, but often it breaks HTML formatting. There should be an
easy way for page developers to write basic filters for jasper that allows a plugin to
strip tabs and control linefeeds. Not only would this reduce the size of the generated
page, but it should provide significant improvement for pages with lots and lots of
tags.
peter lin
"Craig R. McClanahan" <[EMAIL PROTECTED]> wrote:Building the pluggability framework
pretty much has to be done by the
Jasper developers. Implementing plugins for a particular type of
optimization (such as a JSTL recognizer/optimizer) could be done by Jasper
developers or by anyone else.
The way to ensure correctness of a Jasper+Plugin (of any type) is to
ensure that it still passes the TCKs for the APIs it claims to implement
(JSP x.y of course, and JSTL if we're talking about that particular kind
of a plugin).
There's really two proposals -- a pluggability interface into Jasper's
page compiler, and a specific use of this interface for optimizing the
code generated for JSTL tags. The pluggability would be available to
anyone using Jasper (and, in the past at least, that includes more than a
few J2EE platform vendors). None of this is likely to be done by typical
application developers -- it's much more likely to be container developers
that use it.
On the other hand, I wonder if people running Struts-based apps on Tomcat
would enjoy it if we did a pluggable optimizer for the Struts tags ...
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