appserv jstl

This tag library component provides:

• General-purpose tags for the manipulation of scoped variables and handling of error conditions
• Conditional tags for the conditional processing of a JSP page
• Iterator tags for iterating over a wide variety of objects
• URL-related tags for linking or redirecting to URL resources from a JSP page, or importing a URL resource into a JSP page

This tag library component provides a number of formatting tags which allow numbers, dates, and times in a JSP page to be formatted and parsed in a locale-sensitive or customized manner.

This tag library component provides a number of SQL tags which provide basic capabilities to interact with relational databases.

TLVs allow translation-time validation of the XML view of a JSP page. The TLVs provided by JSTL allow tag library authors to enforce restrictions regarding the use of scripting elements and permitted tag libraries in JSP pages.

For example, any JSP page that imports the tag library with the following Tag Library Descriptor (TLD) file will be restricted to using JSTL tags:

<?xml version="1.0" encoding="UTF-8" ?>

<taglib xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-jsptaglibrary_2_1.xsd"
    version="2.1">
  <description>
    Restricts JSP pages to the JSTL tag libraries
  </description>
  <display-name>permittedTaglibs</display-name>
  <tlib-version>1.1</tlib-version>
  <short-name>permittedTaglibs</short-name>
  <uri>http://java.sun.com/jstl/permittedTaglibs</uri>

  <validator>
    <validator-class>
        javax.servlet.jsp.jstl.tlv.PermittedTaglibsTLV
    </validator-class>
    <init-param>
      <description>
        Whitespace-separated list of taglib URIs to permit.
      </description>
      <param-name>permittedTaglibs</param-name>
      <param-value>
        http://java.sun.com/jsp/jstl/core
        http://java.sun.com/jsp/jstl/fmt
        http://java.sun.com/jsp/jstl/sql
        http://java.sun.com/jsp/jstl/xml
      </param-value>
    </init-param>
  </validator>
</taglib>