Bob Foster <[EMAIL PROTECTED]> wrote on 08/05/2005 11:12:07 AM: > Excuse me, but if you set the parser so it does DTD _and_ schema > validation, then the document must be both DTD-valid and schema valid?
Well, not exactly. With the dynamic validation feature turned on, the document will only be DTD validated if it has a DTD. Similarly a schema (more specifically an element declaration for the validation root) must be found for schema validation to be performed. If the document has both a DTD and schema it will be DTD validated and schema validated. If it has neither then no validation is performed. > Is this really a configuration people want? It seems like a reasonable configuration if you want to optionally validate based on whether a grammar is available. > Bob Foster > > Michael Glavassevich wrote: > > Hello Dies, > > > > When you set the schemaLanguage property to > > http://www.w3.org/2001/XMLSchema only schema validation is performed. If > > you want to configure Xerces so that it performs DTD validation if the > > document has a DTD and/or schema validation if a schema grammar is > > specified, try setting the validation [1], schema validation [2] and > > dynamic validation [3] features to true. > > > > [1] http://xml.apache.org/xerces2-j/features.html#validation > > [2] http://xml.apache.org/xerces2-j/features.html#validation.schema > > [3] http://xml.apache.org/xerces2-j/features.html#validation.dynamic > > > > Dies Koper <[EMAIL PROTECTED]> wrote on 08/03/2005 09:26:38 PM: > > > > > >>Hello all, > >> > >>I am trying to parse xml files, that are either DTD or schema based. > >>I expected the parser to automatically determine whether the files are > >>DTD or schema based when it parses them and validate them accordingly, > >>but I can't get it to work. > >> > >>It validates my DTD based file fine, I then need to set the > >>"http://java.sun.com/xml/jaxp/properties/schemaLanguage"; attribute to > >>"http://www.w3.org/2001/XMLSchema"; to be able to read the schema based > >>file, that also works fine. But with this attribute set I cannot read > >>the DTD based file anymore, it gives the following error: > >> > >>org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of > >>element 'ejb-jar'. > >> > >>I set up the parser as follows: > >> > >>DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); > >>factory.setValidating( true ); > >>factory.setNamespaceAware(true); > >>String JAXP_SCHEMA_LANGUAGE = > >>"http://java.sun.com/xml/jaxp/properties/schemaLanguage";; > >>String W3C_XML_SCHEMA = "http://www.w3.org/2001/XMLSchema";; > >>factory.setAttribute(JAXP_SCHEMA_LANGUAGE, W3C_XML_SCHEMA); > >>DocumentBuilder builder = factory.newDocumentBuilder(); > >> > >>(xercesImpl.jar 2.7.1 and xml-apis.jar are in JDK14\JRE\lib\ext) > >> > >>The xml files look like: > >>[DTD based] > >><?xml version="1.0" encoding="UTF-8"?> > >><!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise > >>JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd";> > >><ejb-jar> > >>... > >> > >>[schema based] > >><?xml version="1.0" encoding="UTF-8"?> > >><ejb-jar version="2.1" xmlns="http://java.sun.com/xml/ns/j2ee"; > >>xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > >>xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee > >>http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd";> > >>... > >> > >>The culprit seems to be the setting of the attribute: with it schema > >>based files work and DTD based files not, without it the other way > > > > around. > > > >>How should I change my code to be able to parse and validate both? > >> > >>Thanks, > >>Dies > >> > >> > >>--------------------------------------------------------------------- > >>To unsubscribe, e-mail: [EMAIL PROTECTED] > >>For additional commands, e-mail: [EMAIL PROTECTED] > >> > > > > > > Michael Glavassevich > > XML Parser Development > > IBM Toronto Lab > > E-mail: [EMAIL PROTECTED] > > E-mail: [EMAIL PROTECTED] > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > Michael Glavassevich XML Parser Development IBM Toronto Lab E-mail: [EMAIL PROTECTED] E-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
