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http://jira.jboss.com/jira/browse/JBSEAM-2141?page=comments#action_12386773 ]
Mikhail Grushinskiy commented on JBSEAM-2141:
---------------------------------------------
"Compiling the JSP EL to bytecode" by Chris Nokleberg
http://sixlegs.com/blog/java/compiled-el.html
looks very interesting...
Quote:
This zip file (
http://sixlegs.com/misc/el.zip ) includes the entire
project: Ant build file, JUnit tests, and all
the necessary libraries. It uses ASM 3.0 (beta) for bytecode generation, and
Jar Jar Links (
http://jarjar.sf.net/ ) to embed the ASM libraries when building the
library Jar file. The source uses
the same license as GNU Classpath (GPL with library >exception).
...
If people are interested in working on the code, let me know and
I'll register a project somewhere like SourceForge.
I hope JBoss could consider it for its JBoss-EL implementation
Support for EL without reflection for better JSF performance
------------------------------------------------------------
Key: JBSEAM-2141
URL:
http://jira.jboss.com/jira/browse/JBSEAM-2141
Project: JBoss Seam
Issue Type: Feature Request
Components: EL
Reporter: Mikhail Grushinskiy
Support for EL without reflection for better JSF performance.
The idea is to add a new tag to declare types of the variables used on a page and use
this type information
to compile EL expressions into byte-code during initialization (deployment)
Ex:
If the page contains at the beginning
<s:typedef var="myBean" class="com.company.package.Bean" />
then all EL expressions can be compiled into bytecode at initialization time (and no
reflection will be used for myBean access.
<h:outputText value="#{myBean.subBean.property}"
rendered="#{myBean.renderText}" />
Some examples of implementation of compiled EL can be found here
http://sixlegs.com/blog/java/compiled-el.html
This should help much with JSF performance issues
Thanks
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