How to export variable from an JSP 2.0 tag file

From: Treespace (rmacpherson_at_verilet.com)
Date: 02/28/05 

Date: 27 Feb 2005 17:59:35 -0800

Using JSP 2.0 XML tag file that contains a scriptlet. The scriptlet set
a page attribute of type Bar. I can now use "bar" in EL expressions on
page that uses this tag. QUESTION: do I have to pass in the pageContext
as an attribute to do this?

<%@ tag body-content="empty" %>
...

<jsp:directive.attribute name="foo" required="true"
type="com.acme.Foo"/>
<jsp:directive.attribute name="ctx" required="true"
type="javax.servlet.jsp.PageContext"/>

<jsp:scriptlet>
        ctx.setAttribute("bar", foo.getBar());
</jsp:scriptlet>

Side question: after setting the attribute, "bar" cannot be accessed
within the tag itself, e.g., ${bar.status} complains it cannot find
bar. It's as though it is evaluating the EL before the scriplet runs.

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