Novice XmlBeans user question

[Wm.A.Stafford]

I'm a novice user of XmlBeans.  I've used it successfully to parse 
several simple schemas but when I moved on to a more complicated schema 
I quickly came to a screeching halt.

Here is a segment of the schema I am working with:
<xsd:element name="metadata" type="metadataResultType">
   <xsd:annotation>
       <xsd:documentation>Global element to validate external metadata 
XMLfiles.</xsd:documentation>
   </xsd:annotation>
</xsd:element>
<xsd:complexType name="metadataResultType">
   <xsd:annotation>
       <xsd:documentation>Format of metadata operation 
result.</xsd:documentation>
   </xsd:annotation>
   <xsd:sequence>
       <xsd:element ref="dc:title">
           <xsd:annotation>
               <xsd:documentation>The name of this 
service</xsd:documentation>
           </xsd:annotation>
       </xsd:element>
       <xsd:element ref="dc:type">
           <xsd:annotation>
               <xsd:documentation>The nature or genre of the 
content</xsd:documentation>
           </xsd:annotation>
       </xsd:element>
          
       ... lots more elements
          
   </xsd:sequence>
</xsd:complexType>

Here is a segment of Java that XMLBeans generated.

/**
* An XML metadataResultType(@http://rs.tdwg.org/tapir/1.0).
*
* This is a complex type.
*/
public interface MetadataResultType extends org.apache.xmlbeans.XmlObject
{
   public static final org.apache.xmlbeans.SchemaType type = 
(org.apache.xmlbeans.SchemaType)
       
org.apache.xmlbeans.XmlBeans.typeSystemForClassLoader(MetadataResultType.class.getClassLoader(), 
"schemaorg_apache_xmlbeans.system.sC4F7BF7BC2573C292B659C414C97BA9A").resolveHandle("metadataresulttype5083type");
  
   /**
    * Gets the "title" element
    */
   org.purl.dc.elements.x11.SimpleLiteral getTitle();
  

Here is a segment of java to extract the title from the server response. 
  
MetadataResultType doc = MetadataResultType.Factory.parse(new URL( 
server_url  ));
System.out.println("title=" + doc.getTitle() );
System.out.println("doc=" + doc.toString()) ;

This is the output of the code fragment. 

title=null

doc=<response xsi:schemaLocation="http://rs.tdwg.org/tapir/1.0 
http://rs.tdwg.org/tapir/1.0/schema/tapir.xsd"; 
xmlns="http://rs.tdwg.org/tapir/1.0"; 
xmlns:dc="http://purl.org/dc/elements/1.1/"; 
xmlns:dct="http://purl.org/dc/terms/"; 
xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#"; 
xmlns:vcard="http://www.w3.org/2001/vcard-rdf/3.0#"; 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
 <header>.. contents removed...</header>
 <metadata xml:lang="en">
   <dc:title xml:lang="en">Photo-identification Library</dc:title>
   <dc:type>http://purl.org/dc/dcmitype/Service</dc:type>
  
   ... lots more elements removed
</metadata>
</response>

I would like to get the title, type and ... lots more elements from the 
response.  My first attempt,
calling getTitle(), seemed not only the obvious but the only choice. 

How to I get at title and the rest of the metadata sequence and why does 
getTitle() return null?

Thanks for any help or advice,
-=beeky
          

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