[jboss-jira] [JBoss JIRA] Updated: (JBAS-4307) Tag file: Variables from outer tags are not available in inner tags

Mon Apr 9 10:13:58 EDT 2007

     [ http://jira.jboss.com/jira/browse/JBAS-4307?page=all ]

Wolfgang Knauf updated JBAS-4307:
---------------------------------

    Affects Version/s: JBossAS-5.0.0.Beta2

Same for JBoss 5.0 Beta2

> Tag file: Variables from outer tags are not available in inner tags
> -------------------------------------------------------------------
>
>                 Key: JBAS-4307
>                 URL: http://jira.jboss.com/jira/browse/JBAS-4307
>             Project: JBoss Application Server
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Web (Tomcat) service
>    Affects Versions: JBossAS-4.2.0.CR1, JBossAS-5.0.0.Beta2
>            Reporter: Wolfgang Knauf
>         Assigned To: Remy Maucherat
>
> I created two tag files ("outer" and "inner"), in the jsp "inner" is a nested tag of "outer".
> In the outer tag file I declare a variable and write it to the jspContext. This variable is available in the jsp, but not in "inner.tag".
> outer.tag
> <%@ variable name-given="test" scope="NESTED" %>
> <%
>   jspContext.setAttribute ("test", "This is a test !", PageContext.PAGE_SCOPE);
> %>
> Value before doBody: ${test} <br>
> <jsp:doBody/>
> Value after doBody: ${test} <br>
> inner.tag:
> Value in inner tag: ${test} <br>
> test.jsp:
> <?xml version="1.0" encoding="ISO-8859-1" ?>
> <%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
> <%@ taglib prefix="test" tagdir="/WEB-INF/tags" %>
> <html>
> <body>
>  <test:outer>
>    Value in test.jsp: ${test} <br>
>    <test:inner/>
>  </test:outer>
> </body>
> </html>
> The output is:
> Value before doBody: This is a test ! 
> Value in test.jsp: This is a test ! 
> Value in inner tag: 
> Value after doBody: This is a test ! 
> The inner tag does not see the attribute.
> I don't know whether this is a bug or whether the spec forbids this, but I think it should be possible for the inner tag to see the parent variables.
> A usage sample would be some iterator tag which places the current item in a jspContext variable and the inner tags must be able to access the current item (the variable name is an attribute of the inner tag). I could place the current item in the request scope, but this is much too global.

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