What is the EL way to write this?

Question

Hi,
I'm trying to write embed some Java code within my Struts tag, and I'm getting compilation errors. This
<html:submit property="next" disabled="<%= (endCount<maxCount) ? "false" : "true" %>"><bean:message key="button.next"/></html:submit>
gives me the errors that look like:
: This attribute is not recognized.
                              <html:submit property="next" disabled="<%= (endCount<maxCount) ? "false" : "true" %>"><bean:message key="button.next"/></html:submit>
^---^
The last time I had this problem, BallusC showed me an EL way to write out what the value of the attribute was, but I can't figure out how to rewrite, '<%= (endCount<maxCount) ? "false" : "true" %>', in EL. Can you help? Or maybe there's a better way?
Thanks, - Dave

Answer 1

WebLogic has problems parsing expressions which have nested quotes in them.
If you use " around the entire expression, and also have a String delimited with " in your expression, it throws an error.
example - something like this compiles and works on Tomcat, but not on Weblogic
<html:img src="<%= "images/" + imageName %>"/>One solution is to use single quote delimiter around the entire expression
<html:img src='<%= "images/" + imageName %>'/>Its a documented feature of Weblogic - or at least I think I remember reading something about it in Weblogics docs somewhere, but I can't remember exactly where right now.
Anyway thats one work-around.
Given this:
<html:hidden property="<%=IMConstants.startCount %>" value="<%= endCount %>" />The error message seems to indicate that IMConstants.startCount is an Integer. You need to convert that to a String.
The following should work I think (hack hack...)
<html:hidden property='<%=IMConstants.startCount  %>' value='<%= endCount + ""%>' />