How to use Xqueries in OSB 10gR3 ?

Question

Hi,
I have some trouble with OSB 10gR3 Xqueries.
I try to extract (in a "FLWOR" loop ) the indexed i = 2 or i = 3 corresponding customer.
I used 2 Xqueries to achieve it but I'm stuck. Can anyone help ?
Thanks
Query 1
$body/sdf:updateCustomersResponse/sdf:ResponseData/sdf:customer[$index]
Query 2
$body/sdf:updateCustomersResponse/sdf:ResponseData/sdf:customer[2]
Here is the input body used:
<SOAP-ENV:Body      
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <ns:updateCustomersResponse      
     xmlns:ns="http://www.example.org/abc">
     <ns:ResponseData>
     <ns:customer>
     <ns:fax>00990001</ns:fax>
     <ns:tel>00991001</ns:tel>
     </ns:customer>
     <ns:customer>
     <ns:fax>00990002</ns:fax>
     <ns:tel>0099100100</ns:tel>
     </ns:customer>
     <ns:customer>
     <ns:fax>00990003</ns:fax>
     <ns:tel>00991222</ns:tel>
     </ns:customer>
     </ns:ResponseData>
</ns:updateCustomersResponse>
</SOAP-ENV:Body>
When I use Query2
$body/sdf:updateCustomersResponse/sdf:ResponseData/sdf:customer[2]
I get the 2nd customer. It's correct.
     <ns:customer      
     xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
     xmlns:ns="http://www.example.org/abc"
     xmlns:xsd="http://www.w3.org/2001/XMLSchema"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <ns:fax>00990002</ns:fax>
     <ns:tel>0099100100</ns:tel>
     </ns:customer>
But I need to do parse all the customers (here 3)
So I started to use such a query:     
$body/sdf:updateCustomersResponse/sdf:ResponseData/sdf:customer[$index]
In the OSB test console I define the value for $index as equal to 2 (no XML checked)
But the Xquery returns all 3 customers and not the indexed one (e.g the first or the third)
What is wrong ?
Is there any clear example in the Oracle documentation to define the "Dynamic Xquery" ?(if this helps ?)
<ns:customer      
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:ns="http://www.example.org/abc"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <ns:fax>00990001</ns:fax>
     <ns:tel>00991001</ns:tel>
     </ns:customer>
     <ns:customer      
     xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
     xmlns:ns="http://www.example.org/abc"
     xmlns:xsd="http://www.w3.org/2001/XMLSchema"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <ns:fax>00990002</ns:fax>
     <ns:tel>0099100100</ns:tel>
     </ns:customer>
     <ns:customer      
     xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
     xmlns:ns="http://www.example.org/abc"
     xmlns:xsd="http://www.w3.org/2001/XMLSchema"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <ns:fax>00990003</ns:fax>
     <ns:tel>00991222</ns:tel>
     </ns:customer>

Answer 1

What do you want to do with each seperate customer record?
Do you want to loop them in the osb flow itself, or from within a xquery (for each)
if you want to do it from the flow itself youi use the flow control > for each
For each variable 'mycustomer' in ./sdf:updateCustomersResponse/sdf:ResponseData/sdf:customer of variable 'body'
indexed by variable 'mycustomer_i' with total count in variable 'customer_count'
in an assign you can then use something like $mycustomer/ns:fax
that's how it would look like in osb flow itself.
Edited by: Eric Elzinga (IT-Eye) on Jan 12, 2010 9:05 AM