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So that means if I use the RT-based version, then I won't be able to use
EL? That's quite strange, because 1.1 could handle both, so it has to be
doable.
-----Original Message-----
From: Kris Schneider [mailto:kris@xxxxxxxxxx]
Sent: Monday, April 03, 2006 6:26 AM
To: Tag Libraries Users List
Subject: Re: <c:set> and runtime expressions
If you need to run JSTL 1.0 and want to use JSP expressions as attribute
values, you need to use the "RT-based" versions. For JSTL, there are
basically two distinct versions of each taglib:
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core"; %>
<%@ taglib prefix="c_rt" uri="http://java.sun.com/jstl/core_rt"; %>
If you look at the TLD files for JSTL 1.0, you'll see:
c.tld:
------
<tag>
<name>set</name>
...
<attribute>
<name>value</name>
<required>false</required>
<rtexprvalue>false</rtexprvalue>
</attribute>
...
</tag>
c-rt.tld:
---------
<tag>
<name>set</name>
...
<attribute>
<name>value</name>
<required>false</required>
<rtexprvalue>true</rtexprvalue>
</attribute>
...
</tag>
JSTL 1.0 has to handle EL evaluation on its own (it's integrated into
JSP
2.0 so JSTL 1.1 doesn't need to do the evaluation), so you're forced to
make a choice between different taglibs that use EL expressions or JSP
expressions.
Tarek Nabil wrote:
> Hi everyone,
>
>
>
> I was using JSTL 1.1 in my application, and then unfortunately, I had
to
> downgrade to 1.0. Now, my IDE is complaining about this line in my JSP
>
>
>
> <c:set var="config" value="<%= Config.getInstance() %>"/>
>
>
>
> It says "Attribute value does not accept runtime expressions.
>
>
>
> This used to work perfectly when I was using 1.1. I tried to look at
the
> changes between 1.1 and 1.0 but I can not see anything related to this
> issue. Is this really a difference between 1.0 and 1.1 or am I doing
> something wrong?
>
>
>
> Thanks in advance for your help.
--
Kris Schneider <mailto:kris@xxxxxxxxxx>
D.O.Tech <http://www.dotech.com/>
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