Disable validation inside Transformer?

Question

is there a way to turn off validation within the Transformer class? Our XSL uses document() to reference external XML files:
  <xsl:value-of
   select="document($teamsched-resource-file)/schedule/event-metadat\a[@event-key = $event-id]/@start-date-time"/>where the external file DOCTYPE uses a relative (but invalid) SystemID DTD file path:
<!DOCTYPE schedule PUBLIC "-//XMLTEAM//DTD sportsml-core 1.0/EN" "dtds/sportsml\-core.dtd">and the transform gives the following on each call to document():
    file:///home/ticker/xsl/scoresxml.xsl; Line #394; Column #41;
    Can not load requested doc:  /home/ticker/resources/l.nba.com/dtds/sportsml-core.dtd
    (No such file or directory)Is it possible to dig out the XMLReader (or whatever it is) from the Transformer and toggle it's validation?
We're using Java 1.4.2 and the apache Xalan classes.

Answer 1

That's an interesting hack (which one would think would be simpler to do!) but it's not the problem I have -- I do not want to disable the entity resolver in the DOM builder, I need to disable it in the Transformer ... and so far as I can tell, I can't get my hands on the SAXBuilder used inside the Transformer class to provide the XML parsing supporting the XSL document() method for importing external XML documents during a transform.
Or do I misunderstand the answer in that other thread? Is it actually possible to extract and modify, or replace, the SAXBuilder (or whatever it is) used with the Transformer?
Also, for the example given in that other thread, why do they not simply use SAXBuilder's setValidation(false)? When I do this for the builder used to create the Document class from an XML file, the DTD is completely ignored.