ID attribute in JSF components

Question

Hello,
I have a question about the id attribute on JSF 2 components.
The document says, that it should be a String. Does that mean
String constant or could it also be a el-expression resulting to a String.
Actually I can use el-expression for id, but am not sure because of the documentation.
Any infos about that would be great!

Answer 1

Well, I stick with documentation. This is a specification. That means other iplementations like Apache myFaces
will also stick to the documentation not for current mojorra implementation or others.
That means, an implementation must not evaluate an el-expression. We ar here talking about evaluationg an
el-expression and the documentation says, that id must not evaluate el-expressions. At least thats what i understand.
So when i use mojorra and use el-expressions fpr id and change to apache implementation of jsf, i might be
not working.
Also i would get same result, if mojorra implementation someday does not evaluate el-expressions.
So it is very important for me and i guess for JSF to clear this point cause it is important for development.
One of the posters above mentioned it, is it possible to set dynamic ids for components or not.
I always read that it is not wanted. Ids will be generated. But you can give a component an constant id.
Like you can easy read in the documentation.
You are interpreting the documentation. But JSF is a specification and should not let room for interpretations.
If el-expressions are allowed it should be it should be documented.
By the way, I think in apache implementation of JSF, el-expressions for id is not allowed.
See here:
http://www.mail-archive.com/[email protected]/msg20800.html
So this implementation does exactly what documentation is saying so for me, mojorra implementation has here a bug!
Edited by: 859302 on 18.05.2011 05:23