Hi Michael, I have changed the code so that retrieveInitialGrammarSet ALWAYS returns an empty array. I have modified retrieveGrammar to return null if the grammar is a schema and location hints are null. This does seem to resolve the problem. Presumably the code should behave in this manner only if dynamic validation is in force. Is this what you mean? Cheers Russell Thamm
________________________________ From: Michael Glavassevich [mailto:[EMAIL PROTECTED] Sent: Tuesday, 9 September 2008 12:27 PM To: j-users@xerces.apache.org Subject: RE: http://apache.org/xml/features/validation/dynamic does not work as documented Hi Russell, "Thamm, Russell" <[EMAIL PROTECTED]> wrote on 09/08/2008 10:23:58 PM: > Hi Michael, > > I don't understand. The Grammar Pool doesn't seem to have any say in > the matter. > > I have a schema, say a.xsd and two documents a.xml and b.xml. > > The document a.xml references schema a.xsd and is valid according to > the schema. > The document b.xml has the same root element as a.xml but does NOT > reference the schema and is not valid according to the schema. > > Assuming a.xsd is in the grammar cache, if I parse b.xml, the only > calls to the implementation of GrammarPool are to retrieveInitialGrammarSet(). Probably because you return all the grammars from the pool from this method. You don't have to. Your implementation can return a subset or nothing (i.e. a zero length array) if it chooses. > How does the Grammar Pool know whether or not a schema location hint > was provided by the instance document? You get this information when the retrieveGrammar() [1][2] method is called. It will only be called if your grammar pool hasn't already returned a grammar for the given target namespace. If your implementation of retrieveInitialGrammarSet() already returns such a grammar then retrieveGrammar() will never be called. > The only info that I get passed is "http://www.w3.org/2001/XMLSchema"; and > http://www.w3.org/TR/REC-XML. > > One thing that may be relevant is that my schema don't have a targetnamespace. > > Cheers > Russell Thamm Thanks. [1] http://xerces.apache.org/xerces2-j/javadocs/xni/org/apache/xerces/xni/gr ammars/XMLGrammarPool.html#retrieveGrammar(org.apache.xerces.xni.grammar s.XMLGrammarDescription) [2] http://xerces.apache.org/xerces2-j/javadocs/xni/org/apache/xerces/xni/gr ammars/XMLSchemaDescription.html Michael Glavassevich XML Parser Development IBM Toronto Lab E-mail: [EMAIL PROTECTED] E-mail: [EMAIL PROTECTED] IMPORTANT: This email remains the property of the Australian Defence Organisation and is subject to the jurisdiction of section 70 of the CRIMES ACT 1914. If you have received this email in error, you are requested to contact the sender and delete the email.
