org.apache.xml.security.utils
Class IdResolver

java.lang.Object
  |
  +--org.apache.xml.security.utils.IdResolver

public class IdResolver

extends java.lang.Object

Purpose of this class is to enable the XML Parser to keep track of ID attributes. This is done by 'registering' attributes of type ID at the IdResolver. This is necessary if we create a document from scratch and we sign some resources with a URI using a fragent identifier...
The problem is that if you do not validate a document, you cannot use the getElementByID functionality. So this modules uses some implicit knowledge on selected Schemas and DTDs to pick the right Element for a given ID: We know that all @Id attributes in an Element from the XML Signature namespace are of type ID.

Author:

$Author: vdkoogh $

See Also:

"Identity Crisis" on xml.com

Method Summary

static org.w3c.dom.Element	getElementById(org.w3c.dom.Document doc, java.lang.String id) Method getElementById
static void	registerElementById(org.w3c.dom.Element element, org.w3c.dom.Attr id) Method registerElementById
static void	registerElementById(org.w3c.dom.Element element, java.lang.String idValue) Method registerElementById

Methods inherited from class java.lang.Object

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

Method Detail

registerElementById

public static void registerElementById(org.w3c.dom.Element element,
                                       java.lang.String idValue)

Method registerElementById

Parameters:

element -

idValue -

registerElementById

public static void registerElementById(org.w3c.dom.Element element,
                                       org.w3c.dom.Attr id)

Method registerElementById

Parameters:

element -

id -

getElementById

public static org.w3c.dom.Element getElementById(org.w3c.dom.Document doc,
                                                 java.lang.String id)

Method getElementById

Parameters:

doc -

id -