I think i understand some of the reasons why JAXB binding of biomart
webservice responses might be failing
 
the data returned is not 100% valid with the schema at
http://www.biomart.org/biomart/martxsd
 
for example, the response to a query includes
 
            <mart>
               <name xsi:type="xsd:string">ensembl</name>
               <displayName xsi:type="xsd:string">ENSEMBL 53 GENES
(SANGER UK)</displayName>
                . . .
               <redirect xsi:nil="true" xsi:type="xsd:int" />
**********i.e. an empty element************
            </mart>
 
which is not valid against the schema type
 
<xs:complexType name="mart">
    <xs:sequence>
        <xs:element name="name" type="xs:string"/>
        <xs:element name="displayName" type="xs:string"/>
        . . . 
        <xs:element name="redirect" type="xs:int"/> 
    </xs:sequence>
</xs:complexType>
 
 
for this data to be valid the redirect element need to be set to 
 
<xs:element name="redirect" type="xs:int" nillable="true"/>
 
[there may be other invalid stuff in there....and dealing with the
namespaces when pulling apart SOAP elements to JAXB unmarshall is also
problematic (no suprise there!)]
 
So when you try to bind/unmarshall the content of the SOAP response - it
finds no <mart>s in the response..........
 
I guess JAXB binding of the SOAP responses is not the way to go unless
the responses where guaranteed valid....or the binding code is hacked
 
so Tom Oinn was right - i will just parse XML myself in the
client.......... and forget about doing anything 'clever'!
 
 
Trevor

Trevor Paterson PhD
new email [email protected]
<mailto:[email protected]> 

Bioinformatics 
The Roslin Institute
Edinburgh University
Scotland EH25 9PS
phone +44 (0)131 5274477
http://www.roslin.ed.ac.uk <http://www.roslin.ed.ac.uk/> 
http://www.comparagrid.org <http://www.comparagrid.org/> 
http://www.thearkdb.org <http://www.thearkdb.org/> 

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