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Home » Eclipse Projects » JavaServer Faces » WTP 2.0 - JSF Tools Project: Support for Unified Expression Language..
WTP 2.0 - JSF Tools Project: Support for Unified Expression Language.. [message #472948] Tue, 12 September 2006 18:29
Raghu Srinivasan is currently offline Raghu Srinivasan
Messages: 265
Registered: July 2009
Senior Member
Hi,

The JSF Tools project is targeting support for JavaServer Faces 1.2 (Java
5 EE) in the WTP 2.0 release. As a first step, we have identified the
requirements for supporting the Unified Expression Language and have
posted a document on the JSF Tools Project Wiki,
http://wiki.eclipse.org/index.php/Unified_Expression_Languag e_Support

Please review and post your comments to the development mailing list,
wtp-jsf-dev@eclipse.org .

Thanks
Raghu Srinivasan
Project Lead – JSF Tools Project

Summary:
The JavaEE 5.0 specification defines a new "Unified Expression Language"
that is to be used by both release 1.2 of Java Server Faces (JSF) and
release 2.1 of Java Server Pages (JSP). The new EL language is intended to
be completely independent of its container (i.e. JSP). A new Java API and
expression evaluation mechanism has been defined to support this container
independence. The new evaluation mechanism, although mostly backward
compatible, has a significant impact on the way tooling supports design
time expression evaluation for the purposes of such features as validation
and auto-completion.

This document enumerates the changes to EL as they affect the JSP/JSF
tooling and discusses framework changes that will be required to support
Unified EL for Faces 1.2. Previous limitations of the framework and
backward compatibility are also considered.


Raghu Srinivasan,
Project Lead - JSF
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