Hi,
I need to associate some custom metadata with JSP pages, and access it
*before* the page is rendered.
The current implementation uses an xml with the same name as the jsp, eg
foo.jsp
foo.xml
so that when I'm about to forward to "foo.jsp" I first look for a
"foo.xml" file and if present parse it to extract the metadata.
I'd really like to embed that metadata within the jsp page itself - but
need access to that info *before* the jsp page executes.
(a)
Is it possible to obtain the name of the Class that is generated for a
jsp, so that I could do introspection on it?
It would then be possible to embed something like this into the page:
<%!
private static MyMetaData metaData = new MetaData(....);
public static MyMetaData getMetaData() { return metaData; }
%>
and look for/invoke the getMetaData method *before* forwarding to the page.
Of course, this also requires that the servlet-class for the jsp has
actually been generated. Is there a way to guarantee this is done for
any particular jsp before actually doing a forward?
Note that requiring pre-compilation of all jsps is not an option. This
metadata stuff is needed for an open-source framework, and it is not
reasonable to tell every possible user of this framework to precompile
their jsps.
(b)
If the above is possible, is there a way to generate those static
members from a custom JSP tag? It would be nicer to be able to do:
<myns:declareMetaData ..../>
and have that define the static members listed above.
Or perhaps someone can suggest an alternate approach to embedding
metadata that can be accessed before the page renders?
Thanks,
Simon
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