I found an old thread between Michael and myself on basically this same issue:
http://old.nabble.com/Accessing-non-schema-attributes-via-XSModel-td29557367.html And at the time, evidently I *was* able to read at least the synthetic annotations. So I guess that works in at least some circumstances. The big difference between what I was doing then and what we're doing now is that I was using Xerces to parse the actual XML, in addition to loading the schemas. So the XSElementDeclaration was handled to handleElementPSVI(). In our new code, though (part of a larger product), the parsing is handled externally to Xerces, so we're looking up the XSElementDeclaration with XSModel::getElementDeclaration(). Could that be making a difference? Ceej aka Chris Hillery On Mon, Feb 20, 2012 at 2:33 AM, Chris Hillery <c...@lambda.nu> wrote: > Hi, > > I've been working on this problem with Luis. Unfortunately it doesn't seem > that Xerces does what we'd expect in this case. In all cases, calling > getAnnotation() on the XSElementDeclaration returns NULL. I've tried > enabling fgXercesGenerateSyntheticAnnotations, and also tried enabling > fgXercesValidateAnnotations just in case. I've verified that > fgIgnoreAnnotations is false. No luck. > > The other problem we have is, in addition to the extra non-schema > attributes, we also want to read the normal annotations on the schema. In > the example Luis provided, there's an <xs:annotation> element on the > <xs:complexType> for this global element Employee. But, as above, > getAnnotation() on the XSElementDeclaration returns NULL. In this case, I > would think that makes sense, as the annotation is on the complex type, not > the element itself. However, there doesn't seem to be any getAnnotation() > method on XSTypeDefinition, which is the only reasonable path I can see. > > Thanks, > Ceej > aka Chris Hillery > > > > On Sun, Feb 5, 2012 at 8:56 PM, Michael Glavassevich > <mrgla...@ca.ibm.com>wrote: > >> Hi Luis, >> >> Luis Rodriguez <kur...@gmail.com> wrote on 02/02/2012 12:21:29 PM: >> >> > Hi Michael, >> > >> > What API should I use to retrieve such data? >> > XSElementDeclaration::getAnnotation()? >> >> Yes, I would expect you'd find it there. >> >> > Is there any documentation out >> > there? or any book I can get to understand how this works? >> >> Xerces' XML Schema API is documented here: >> http://www.w3.org/Submission/2004/SUBM-xmlschema-api-20040122/ >> >> > Thanks, >> > Luis. >> > >> > 2012/2/1 Michael Glavassevich <mrgla...@ca.ibm.com> >> > >> > > Hi Luis, >> > > >> > > Have you tried enabling the generate-synthetic-annotations [1] >> feature? >> > > That should generate an XSAnnotation for each schema component (e.g. >> > > XSElementDeclaration) with non-schema attributes but no xs:annotation >> > > children. >> > > >> > > Thanks. >> > > >> > > [1] >> > > >> > > http://xerces.apache.org/xerces-c/program- >> > sax2-3.html#GenerateSyntheticAnnotations >> > > >> > > Michael Glavassevich >> > > XML Technologies and WAS Development >> > > IBM Toronto Lab >> > > E-mail: mrgla...@ca.ibm.com >> > > E-mail: mrgla...@apache.org >> > > >> > > Luis Rodriguez <kur...@gmail.com> wrote on 02/01/2012 06:41:14 PM: >> > > >> > > > Hi everyone! >> > > > >> > > > I have a problem trying to get some information from a Schema file. >> I >> got >> > > > this schema: >> > > > >> > > > <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"; >> > > > xmlns:csx="http://xmlns.oracle.com/2004/CSX"; >> > > > targetNamespace="http://www.opencsx.org/schema"; >> > > > elementFormDefault="qualified"> >> > > > <xsd:element name="Employee" csx:propertyID="1234"> >> > > > <xsd:complexType> >> > > > <xsd:annotation> >> > > > <xsd:appinfo> >> > > > <csx:kidList sequential="true"> >> > > > <csx:kid propertyID="3456" kidNum="1"/> >> > > > <csx:kid propertyID="3457" kidNum="2"/> >> > > > </csx:kidList> >> > > > </xsd:appinfo> >> > > > </xsd:annotation> >> > > > <xsd:sequence> >> > > > <xsd:element name="Name" type="xsd:string" >> csx:propertyID="3456"/> >> > > > <xsd:element name="Salary" type="xsd:int" >> csx:propertyID="3457"/> >> > > > </xsd:sequence> >> > > > </xsd:complexType> >> > > > </xsd:element> >> > > > </xsd:schema> >> > > > >> > > > And I got the XSElementDeclaration item from Xerces that represents >> the >> > > > Employee element in this case, the problem here is that I don't know >> how >> > > to >> > > > extract the csx:propertyID attribute and the appinfo annotation. >> Anyone >> > > > knows what API can I use to get them? >> > > > >> > > > Thanks, >> > > > Luis. >> > > > >> > > > -- >> > > > >> > > > "The significant problems we face cannot be solved by the same level >> of >> > > > thinking that created them." -- Albert Einstein >> > > >> > >> > -- >> > >> > "The significant problems we face cannot be solved by the same level of >> > thinking that created them." -- Albert Einstein >> >> Thanks. >> >> Michael Glavassevich >> XML Technologies and WAS Development >> IBM Toronto Lab >> E-mail: mrgla...@ca.ibm.com >> E-mail: mrgla...@apache.org >> > >
