xml.Signature.createReference

Creates a new reference that will be signed with the compute() method

Syntax

createReference(
   uri STRING,
   digest STRING )
  RETURNS INTEGER
  1. uri represents the data to be signed.
  2. digest defines a URL as identifier for the hash algorithm.

Usage

The returned value represents the index for any further manipulation of this reference.

The uri can be:

  • An absolute URL such as http://, https://, tcp://, tcps://, file:/// and alias:// (see FGLPROFILE Configuration for more details about URL mapping with aliases), and where the data can be a XML document or any kind of data such as images or HTML pages.

  • NULL to sign the whole document, but only one NULL is allowed in the entire signature.

  • A fragment like #tobesigned. Note that a DOM node fragment is identified via the value of an attribute of type ID such as xml:id or any attribute whose type was changed to ID with xml.DomNode.setIdAttribute() or xml.DomNode.setIdAttributeNS().

In case of error, the method throws an exception and sets the status variable. Depending on the error, a human-readable description of the problem is available in the sqlca.sqlerrm register. See Error handling in GWS calls (status).