Creating XML from XSD, Only create The First Element

Question

Hi,
I create a XML File from a xsd schema by this way:
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
          factory.setNamespaceAware(true);
          factory.setValidating(true);
               factory.setAttribute(JAXP_SCHEMA_LANGUAGE,W3C_XML_SCHEMA);
               factory.setAttribute(JAXP_SCHEMA_SOURCE, new File(MY_SCHEMA));   
                DocumentBuilder documentBuilder =factory.newDocumentBuilder();
          documentBuilder.setErrorHandler(new SimpleDOMHandler());
          Document parse = documentBuilder.parse(new File(MY_XML));The first lines of the schema:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
     targetNamespace="http://gencat.net/scsp/esquemes/peticion"
     elementFormDefault="qualified" attributeFormDefault="unqualified"
     id="Peticio" xmlns:p="http://gencat.net/scsp/esquemes/peticion">
     <xs:element name="Apellido1">
          <xs:simpleType>
               <xs:restriction base="xs:string">
                    <xs:maxLength value="40" />
               </xs:restriction>
          </xs:simpleType>
     </xs:element>
     <xs:element name="Apellido2">
        .............................The problem is that the created document only have the first element "Apellido1". I dont know if it is a wrong xsd, or i'm using a bad way to do it.
Thanks a lot, and apologize for my english

Answer 1

Hi,
Is it possible to create and populate XML from an XSD
without knowing what the XSD elements are beforehand
(all the examples appear to know what the input XSD
will be, and therefore know what the set and get
methods should be called)? I think it is possible--you would have to recompile each time (unless you can dynamically recompile, which would be neat), but using the classes getMethod() function, you can list all the methods. You would then have to do some tricky logic to determine which of the getMethods you want (for example NOT getClass()), and you can basically call them in sequence. You also need to worry about handling lists & recursively call xxxType classes.
I'm experimenting with this, and it can get a little frustrating because there are a lot of odd cases to handle (for example, while setting the elements of a list, you need to actually get the list & add elements to it), but I think it's possible.
>
Can a user browse for an xsd to input, and the java
will dynamically create the get methods, and be able
to create instances and populate variables before
converting to XML?
What I'm puzzled about is where you'd get the data to populate the variables? Perhaps a database, or a bean? If you just want to make a test xml file, then it doesn't matter, but with real data, I think you'd still have to change how you actually get the variables you want to populate the xml file with, right? In other words, if your schema changed, the parameters you're passing to the set methods would change as well.
Maybe we'll see some more packages in the future to make this task easier.