you can expose variables through tags by using a TagExtraInfo (TEI) class. check out the source code for the bean:define tag and its TEI class.
[EMAIL PROTECTED] wrote: > I found the following advice in the struts archive regarding a "tag within > a tag" problem: > >---------------------------------------------------------------------------------------------------- > From: John Raley > Subject: Re: nesting bean:write inside of html:link > Date: Mon, 27 Aug 2001 13:22:41 -0700 > > As a workaround, I wrote an 'eval' tag that captures its content to a > bean. You can bind the content to a scripting variable and use the > variable. It's ugly but it works. > > So, you'd do this: > > <x:eval id='idValue'><bean:write name="somebean" property="id" /></x:eval> > <html:link href="somepage.jsp?action=someaction&id=<%= idValue %>" >link > text</html:link> > > The actual implementation of eval is very simple - just a body tag that > captures its content to a String and puts the String into the page context. > >---------------------------------------------------------------------------------------------------- > > John's example implies that the tag somehow puts the <x:eval> id attribute, > "idValue", into the pageContext such that it can be accessed from the > scriptlet <%=idValue%>. In my implementation, the best I can do is set > "idValue" as the name in the pageContext.setAttribute() method. Then the > jsp page has to get it like so: > > <x:eval id="idValue"><bean:write name="somebean" property="id" /></x:eval> > <%String idValue= (String) pageContext.getAttribute( "idValue" ); %> > <html:link href="somepage.jsp?action=someaction&id=<%= idValue %>" >link > text</html:link> > > Is John's example just pseudo code that leaves out the > pageContext.getAttribute step, or is there some way to set a variable in a > custom tag such that it can be directly accessed from a scriptlet? > > Thanks, > Craig R.
