Sounds like <http://xmlbeans.apache.org/> might have a solution you can
use.  You provide the schema (XSD) file, and it creates Java classes
around it.

On Wed, 19 Sep 2007 10:33:35 +0200, "Wojtas"
<wkrugiolka@poczta.onet.pl> wrote, quoted or indirectly quoted someone
who said :

See http://mindprod.com/jgloss/parser.html

Look for a Java parser. Then prune it to ignore anything you don't
want.

public class Main
{ public static void main( final java.lang.String[] args )
 throws java.lang.Throwable
 {
   final java.lang.String nl = "\n";
   final String path = "Example.java";
   final String encoding = "UTF-8";

   new java.io.OutputStreamWriter
   ( new java.io.FileOutputStream( path ), encoding ).append
   ( "class Example" + nl +
     "{ private int field;" + nl +
     "  public int getField(){ return field; }" + nl +
     "  public void setField( final int field )" + nl +
     "  { this.field = field; }}" + nl ).close(); }}

XMLBeans, as pointed out by Steve is the best option. You will see
enums if the XSD contains <xsd:enumeration>. What gets generated is a
reflection of the model defined in the XSD. Of course there is no way
to enforce rules like minOccurs, maxOccurs and similar constraints.

-cheers,
Manish