If your application is directly inovking Xerces' simple type validators, then it's responsible for providing a namespace context for QNames. Have a look at org.apache.xerces.impl.validation.ValidationState (see getURI(String)). It should give you some idea on how to do that.
VASEUX Micka�l <[EMAIL PROTECTED]> wrote on 04/08/2005 03:27:07 AM: > Thank you very much for solving this bug !!! > Now I haven't exception anymore. > But when I try to validate the QName "xsd:string", the API says the > value is incorrect : > > UndeclaredPrefix: Cannot resolve 'xsd:string' as a QName: the prefix > 'xsd' is not declared. > > Here is my Schema : > > <?xml version="1.0" encoding="UTF-8"?> > <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"; > xmlns:n0="http://www.w3.org/XML/1998/namespace";> > <xsd:annotation> > <xsd:documentation xml:lang="fr"> > Schema XML d'une activite Symba. > </xsd:documentation> > </xsd:annotation> > <xsd:element name="Activite" type="typeActivite"/> > <xsd:complexType name="typeActivite"> > <xsd:sequence> > <xsd:element name="nom" type="xsd:string"/> > <xsd:element name="etape" type="typeetape" > maxOccurs="unbounded"/> > </xsd:sequence> > </xsd:complexType> > <xsd:complexType name="typeetape"> > <xsd:sequence> > <xsd:element name="nom" type="xsd:string"/> > <xsd:element name="plan" type="typeplan"/> > <xsd:element name="prec-ref" type="xsd:IDREF" minOccurs="0"/> > <xsd:element name="suiv-ref" type="xsd:IDREF" minOccurs="0"/> > </xsd:sequence> > <xsd:attribute name="identifier" type="xsd:ID" use="required"/> > </xsd:complexType> > <xsd:complexType name="typeplan"> > <xsd:sequence> > <xsd:element name="tache" type="typetache" > maxOccurs="unbounded"/> > </xsd:sequence> > </xsd:complexType> > <xsd:complexType name="typetache"> > <xsd:sequence> > <xsd:element name="titre" type="xsd:string"/> > <xsd:element name="acteur" type="xsd:string"/> > <xsd:element name="entrees" type="xsd:string"/> > <xsd:element name="sorties" type="xsd:string"/> > <xsd:element name="dates" type="xsd:string"/> > </xsd:sequence> > </xsd:complexType> > </xsd:schema> > > > Have you an idea about this error? Is it normal? > > > > > Michael Glavassevich (JIRA) a �crit : > > > [ http://issues.apache.org/jira/browse/XERCESJ-1057?page=history ] > > > >Michael Glavassevich resolved XERCESJ-1057: > >------------------------------------------- > > > > Resolution: Duplicate > > > >Duplicate of XERCESJ-1059. > > > > > > > >>NullPointerException with class QNameDV method getActualValue > >>------------------------------------------------------------- > >> > >> Key: XERCESJ-1057 > >> URL: http://issues.apache.org/jira/browse/XERCESJ-1057 > >> Project: Xerces2-J > >> Type: Bug > >> Components: XML Schema API > >> Versions: 2.6.2 > >> Environment: Windows XP SP2 JRE 1.4.2_06-b03 > >> Reporter: vaseux mickael > >> > >> > > > > > > > >>Sorry for my english I'm french user of Xerces ... > >>Consequence : get a nullPointerException in Xample when using > XMLSchema.xsd and set "type" attribute of an element with a prefix > (example : "xs:string") > >>Here is the Exception : > >>java.lang.NullPointerException > >> at org.apache.xerces.impl.dv.xs.QNameDV.getActualValue(QNameDV.java:105) > >> at org.apache.xerces.impl.dv.xs.XSSimpleTypeDecl. > getActualValue(Unknown Source) > >> at org.apache.xerces.impl.dv.xs.XSSimpleTypeDecl.validate(Unknown Source) > >> at com.fg.xmleditor.XSRef.validate(XSRef.java:119) > >> at com.fg.xmleditor.Validator.isValid(Validator.java:122) > >>Here is the code of the method : > >>public Object getActualValue(String content, ValidationContext context) > >> throws InvalidDatatypeValueException { > >> // "prefix:localpart" or "localpart" > >> // get prefix and local part out of content > >> String prefix, localpart; > >> int colonptr = content.indexOf(":"); > >> if (colonptr > 0) { > >> prefix = context.getSymbol(content.substring(0,colonptr)); > >> localpart = content.substring(colonptr+1); > >> } else { > >> prefix = EMPTY_STRING; > >> localpart = content; > >> } > >> // both prefix (if any) a nd localpart must be valid NCName > >> if (*prefix.length() > 0* && !XMLChar.isValidNCName(prefix)) > >> throw new InvalidDatatypeValueException("cvc-datatype- > valid.1.2.1", new Object[]{content, "QName"}); > >> if(!XMLChar.isValidNCName(localpart)) > >> throw new InvalidDatatypeValueException("cvc-datatype- > valid.1.2.1", new Object[]{content, "QName"}); > >> // resove prefix to a uri, report an error if failed > >> String uri = context.getURI(prefix); > >> if (prefix.length() > 0 && uri == null) > >> throw new > InvalidDatatypeValueException("UndeclaredPrefix", new Object[] > {content, prefix}); > >> return new XQName(prefix, context.getSymbol(localpart), > context.getSymbol(content), uri); > >>} > >>In fact, the function : context.getSymbol(content.substring(0, > colonptr)) return the null value, and there's no test to see if the > value returned is null or not. > >>There's is some tests, after, in order to see if prefix.length() > is > 0 or not, that's show that the developper thinked that > getSymbol return ALWAYS a String, which is empty if the symbol > hasn't be found. In relity, yhe context can be return a null value > in case of Dummy Context or Empty Context (see XSSimpleTypeDecl.class) > >>Solution : if the function return null, the prefix String must be > set with EMPTY_STRING > >> > >> > > > > > > > > > --------------------------------------------------------------------- > 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]
