org.apache.taglibs.standard.tag.common.xml
Class JSTLXPathVariableResolver

java.lang.Object
  org.apache.taglibs.standard.tag.common.xml.JSTLXPathVariableResolver

All Implemented Interfaces:

javax.xml.xpath.XPathVariableResolver

public class JSTLXPathVariableResolver
extends java.lang.Object
implements javax.xml.xpath.XPathVariableResolver

The XPathVariableResolver implementation provides access to user XPath variables.

Constructor Summary

JSTLXPathVariableResolver(javax.servlet.jsp.PageContext pc)

Method Summary

protected java.lang.Object	getVariableValue(java.lang.String namespace, java.lang.String prefix, java.lang.String localName) Retrieve an XPath's variable value using JSTL's custom variable-mapping rules
java.lang.Object	resolveVariable(javax.xml.namespace.QName qname) Find variable in set of variables

Methods inherited from class java.lang.Object

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

Constructor Detail

JSTLXPathVariableResolver

public JSTLXPathVariableResolver(javax.servlet.jsp.PageContext pc)

Method Detail

resolveVariable

public java.lang.Object resolveVariable(javax.xml.namespace.QName qname)
                                 throws java.lang.NullPointerException

Find variable in set of variables

Specified by:

resolveVariable in interface javax.xml.xpath.XPathVariableResolver

Parameters:

QName - variable name

Returns:

QName variables value

Throws:

java.lang.NullPointerException - if variable name is null

getVariableValue

protected java.lang.Object getVariableValue(java.lang.String namespace,
                                            java.lang.String prefix,
                                            java.lang.String localName)
                                     throws UnresolvableException

Retrieve an XPath's variable value using JSTL's custom variable-mapping rules

Throws:

UnresolvableException