Never occurred to me to try. I wonder what your use case is? That having been said, this was kind of fun to dink around with. One of the things to note is that an element can have a name the same as a global element so simply comparing the names won't work. I think the following (a) does what you're asking and (b) works; let me know.
My XSD (Note that "UnusedGlobal" is used both as a name for an "ExternalType" and for a global element): <?xml version="1.0" encoding="UTF-8"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"; elementFormDefault="qualified" attributeFormDefault="unqualified"> <xs:element name="ATTRTEST"> <xs:complexType> <xs:sequence> <xs:element name="TESTELEM"> <xs:complexType> <xs:attribute name="DEFATTR" type="xs:string"/> </xs:complexType> </xs:element> <xs:element ref="Element"/> <xs:element name="UnusedGlobal" type="ExternalType"/> </xs:sequence> </xs:complexType> </xs:element> <xs:complexType name="ExternalType"> <xs:attribute name="externalTypeAttribute" type="xs:string" use="required"/> </xs:complexType> <xs:element name="Element"> <xs:complexType> <xs:attribute name="elementAttribute" type="xs:string" use="required"/> </xs:complexType> </xs:element> <xs:element name="UnusedGlobal"> <xs:complexType> <xs:attribute name="elementAttribute" type="xs:string" use="required"/> </xs:complexType> </xs:element> </xs:schema> Test XML: <?xml version="1.0" encoding="UTF-8"?> <ATTRTEST xsi:noNamespaceSchemaLocation="../xsd/AttrTest.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";> <TESTELEM DEFATTR="defined attribute"/> <Element elementAttribute="element attribute from global element"/> <UnusedGlobal externalTypeAttribute="attribute from complex type"/> </ATTRTEST> Program (extended from earlier question; forgive extraneous bits): package test; import java.io.File; import noNamespace.ATTRTESTDocument; import org.apache.xmlbeans.QNameSet; import org.apache.xmlbeans.SchemaGlobalElement; import org.apache.xmlbeans.SchemaProperty; import org.apache.xmlbeans.SchemaType; import org.apache.xmlbeans.SchemaTypeSystem; import org.apache.xmlbeans.XmlObject; import org.w3c.dom.Node; public class Atest { private static final QNameSet QNS = QNameSet.forWildcardNamespaceString("##any", "*"); private ATTRTESTDocument atd; public static void main(String[] args) throws Exception { Atest mod = new Atest(); mod.go(); } private void go() throws Exception { atd = ATTRTESTDocument.Factory.parse(new File("xml/AttrTest.xml")); SchemaTypeSystem docSts = atd.schemaType().getTypeSystem(); SchemaGlobalElement[] docSges = docSts.globalElements(); System.out.println("These are the global elements - "+docSges.length); for (SchemaGlobalElement docSge:docSges) { System.out.println("\t"+docSge.getName()); } System.out.println(""); showChildAttributes(atd); } private void showChildAttributes(XmlObject xo) throws Exception { boolean parentIsGlobal = isGlobalElement(atd, xo); String parentName = xo.getDomNode().getLocalName(); System.out.println ( parentName + "(globalElement="+parentIsGlobal+"):" ); XmlObject[] xoAttrs = xo.selectAttributes(QNS); for (int i = 0; i < xoAttrs.length; i++) { Node domainNode = xoAttrs[i].getDomNode(); String childName = domainNode.getLocalName(); String childValue = domainNode.getNodeValue(); boolean isInXsd = isAttributeInSchema(xo, childName); System.out.println ( "\t" + childName + "=\"" + childValue + "\"\n\t" + "attribute defined in XSD:" + isInXsd ); } XmlObject[] xoChildren = xo.selectChildren(QNS); if (xoChildren != null) { for (XmlObject xoChild:xoChildren) { showChildAttributes(xoChild); } } } private boolean isAttributeInSchema(XmlObject xo, String name) throws Exception { boolean ret = false; SchemaType xoSt = xo.schemaType(); SchemaProperty[] xoSps = xoSt.getAttributeProperties(); for (SchemaProperty xoSp:xoSps) { if (xoSp.getName().toString().equals(name)) { ret = true; break; } } return ret; } private boolean isGlobalElement(XmlObject doc, XmlObject xo) { boolean ret = false; SchemaTypeSystem docSts = doc.schemaType().getTypeSystem(); SchemaGlobalElement[] docSges = docSts.globalElements(); for (SchemaGlobalElement docSge:docSges) { ret = docSge.getType().getComponentRef().getComponent().equals(xo.schemaType().getRef().getComponent()); if (ret) { break; } } return ret; } } Results (Note the results for "UnusedGlobal" which is a name for type "ExternalType", not a reference to the global element of the same name): These are the global elements - 3 UnusedGlobal ATTRTEST Element null(globalElement=false): ATTRTEST(globalElement=true): noNamespaceSchemaLocation="../xsd/AttrTest.xsd" attribute defined in XSD:false TESTELEM(globalElement=false): DEFATTR="defined attribute" attribute defined in XSD:true Element(globalElement=true): elementAttribute="element attribute from global element" attribute defined in XSD:true UnusedGlobal(globalElement=false): externalTypeAttribute="attribute from complex type" attribute defined in XSD:true Paul Gillen -----Original Message----- From: Anthony B. Coates (Google) [mailto:[email protected]] Sent: Saturday, December 26, 2009 7:25 AM To: XMLBeans Users List Subject: How to recognise reference to global element when walking Schema structure using Schema Object Model API? Hi. I'm walking a Schema structure using the Schema Object Model API. It's pretty good, I must say, but one thing I can't work out is how, when examining the children of a complex type, you can tell which are local elements, and which are references to global elements. Can anyone tell me what the trick is? Thanks very much in advance, Cheers, Tony. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
