Right, you will never use <display:table name="userList"> without ${}...
the "name" attribute expects a reference to a list object: in the "old style" this was done using a custom sintax, in the EL version this is done using the standard expression language. It works in the same way all the other jstl tags work. If you need your list to be choosen dinamically you can set a different variable before the display:table tag.
Sorry Tim, but I still don't think that using el to generate an expression which is then re-evaluated using a different sintax can be a good design...
I agree completely, Fabrizio. The alternative is to evaluate the expression to a String then use that String to look up the object in page/session/request/servletContext, as you mentioned before on this thread.
Much better to let the EL handle the entire lookup process and return a List. The "name" attribute then becomes a bit misnamed, however, because now it's more like:
<display:table name="${expr}" ...>
but it's not a "name", it's a "list"
<display:table list="${expr}"> ...>
Is this something that is not likely to change? This is the "API" that displaytag will be stuck with for a long time, and naming of things is very important, as are the concepts you expose. Since it's relatively early in the life of displaytag you might consider looking at how the tag attributes are named and how they work to make sure that they make sense for the direction you want to go.
- Drew
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