Schema problems

[Ala Heno <al...@TTI-TELECOM.COM>]

Hi people,
 
I encountered a very strange problems. I am using Xerces version 1.0.4. I am
using SAXParser
 
First example
 
I had the following Schema: (file name: schema1.xsd)
 

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified">
        <xsd:element name="Vars">
                <xsd:complexType>
                        <xsd:sequence>
                                <xsd:element name="Var">
                                        <xsd:complexType mixed="true">
                                                <xsd:attribute name="name"/>
                                        </xsd:complexType>
                                </xsd:element>
                        </xsd:sequence>
        </xsd:complexType>
</xsd:element>
</xsd:schema>

And I had the following XML code:

<?xml version="1.0" encoding="UTF-8"?>
<Vars xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="schema1.xsd">
        <Var name="myVar">
                5
        </Var>
</Vars>

And I got the following exception during validation process!!

Error on line 2: Element type "Vars" must be declared.
org.jdom.JDOMException: Error on line 2: Element type "Vars" must be
declared.
at org.jdom.input.SAXBuilder.build(SAXBuilder.java:407)
at org.jdom.input.SAXBuilder.build(SAXBuilder.java:499)
at saxParser.Main.main(Main.java:50)
Root cause: org.xml.sax.SAXParseException: Element type "Vars" must be
declared.
at org.apache.xerces.framework.XMLParser.reportError(XMLParser.java:1060)
at
org.apache.xerces.validators.common.XMLValidator.reportRecoverableXMLError(X
MLValidator.java:1432)
at
org.apache.xerces.validators.common.XMLValidator.validateElementAndAttribute
s(XMLValidator.java:2930)
at
org.apache.xerces.validators.common.XMLValidator.callStartElement(XMLValidat
or.java:924)
at
org.apache.xerces.framework.XMLDocumentScanner.scanElement(XMLDocumentScanne
r.java:1858)
at
org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(XM
LDocumentScanner.java:1001)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.
java:381)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:952)
at org.jdom.input.SAXBuilder.build(SAXBuilder.java:395)
at org.jdom.input.SAXBuilder.build(SAXBuilder.java:499)
at saxParser.Main.main(Main.java:50)

What is wrong?

Second example

I used the previous version of the Xerces and I made the following changes
(colored bold blue) in the Schema and the XML, and I got no exception during
the validation process.

Schema:

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2000/10/XMLSchema"
elementFormDefault="qualified">
        <xsd:element name="Vars">
                <xsd:complexType>
                        <xsd:sequence>
                                <xsd:element name="Var">
                                        <xsd:complexType mixed="true">
                                                <xsd:attribute name="name"/>
                                        </xsd:complexType>
                                </xsd:element>
                        </xsd:sequence>
        </xsd:complexType>
</xsd:element>
</xsd:schema>

XML code:

<?xml version="1.0" encoding="UTF-8"?>
<Vars xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="schema1.xsd">
        <Var name="myVar">
                5
        </Var>
</Vars>

As I said the above example works ok, with no exceptions.
By the way, I tried to run the second example with the latest version of
Xerces but I got the same exception as in the first example.
One last thing, the first example results the same exception when I tried to
run it using the previous version of Xerces.

I also noticed that in the different samples in "Apache" site, the syntax
that I used in the first example is used with the latest version of the
Xerces. 

What is wrong?

I am really confused with that.

Thank you for the help.

Ala