JSP tag file that either outputs its body or returns it in a variable

Question

I have a custom tag in a \".tag\" file that computes and outputs a value. Because I cannot post the code here, let\'s assume a simple example.

Content of file mytag.tag:

Answer 1

Based on another answer, a variable alias seems to be a great workaround. Here is a simple example:

<%@ attribute name="urlValue" required="true" type="java.lang.String" %>
<%@ attribute name="var" required="true" type="java.lang.String" rtexprvalue="false" %>
<%@ variable alias="varAlias" name-from-attribute="var" scope="AT_BEGIN" variable-class="java.lang.String"%>