[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-2141) Support for EL without reflection for better JSF performance
Max Andersen (JIRA)
jira-events at lists.jboss.org
Tue Oct 23 02:52:05 EDT 2007
[ http://jira.jboss.com/jira/browse/JBSEAM-2141?page=comments#action_12383837 ]
Max Andersen commented on JBSEAM-2141:
--------------------------------------
Since the EL name still have to be looked up dynamically why would this be faster than e.g. caching the bytecode dynamically for the relevant instance ?
Note: I actually would prefer users had the option of declaring the type of a variable so we could validate a page partly at dev time and fully at runtime; but that is not for performance but for correctness and maintainability.
> 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
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
More information about the seam-issues
mailing list