Module jakarta.servlet.jsp.jstl

Package jakarta.servlet.jsp.jstl.tlv

Class PermittedTaglibsTLV

java.lang.Object

jakarta.servlet.jsp.tagext.TagLibraryValidator

jakarta.servlet.jsp.jstl.tlv.PermittedTaglibsTLV

public class PermittedTaglibsTLV
extends TagLibraryValidator

A TagLibraryValidator class to allow a TLD to restrict what taglibs (in addition to itself) may be imported on a page where it's used.

This TLV supports the following initialization parameter:

• permittedTaglibs: A whitespace-separated list of URIs corresponding to tag libraries permitted to be imported on the page in addition to the tag library that references PermittedTaglibsTLV (which is allowed implicitly).

Constructor Summary

Constructors

Constructor	Description
PermittedTaglibsTLV()

Method Summary

Modifier and Type	Method	Description
void	release()	Release any data kept by this instance for validation purposes.
ValidationMessage[]	validate(String prefix, String uri, PageData page)	Validate a JSP page.

Methods inherited from class jakarta.servlet.jsp.tagext.TagLibraryValidator

getInitParameters, setInitParameters

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

PermittedTaglibsTLV

public PermittedTaglibsTLV()

Method Details

release

public void release()

Description copied from class: TagLibraryValidator

Release any data kept by this instance for validation purposes.

Overrides:

release in class TagLibraryValidator

validate

public ValidationMessage[] validate(String prefix,
 String uri,
 PageData page)

Description copied from class: TagLibraryValidator

Validate a JSP page. This will get invoked once per unique tag library URI in the XML view. This method will return null if the page is valid; otherwise the method should return an array of ValidationMessage objects. An array of length zero is also interpreted as no errors.

Overrides:

validate in class TagLibraryValidator

Parameters:

prefix - the first prefix with which the tag library is associated, in the XML view. Note that some tags may use a different prefix if the namespace is redefined.

uri - the tag library's unique identifier

page - the JspData page object

Returns:

A null object, or zero length array if no errors, an array of ValidationMessages otherwise.