Scalability Issues for Creating Pl/sql Web Services

Question

While Creating Pl/Sql Web Services , jdeveloper automatically creates wrappers files for the same, When using complex types for pl/sql Procedures, the wrappers contain huge no of attributes , Will there be a scalability issue for such kind of complex PL/SQL API Web services, will there be a round trips to database in order to map the attributes of java wrapper files with the Pl/SQL API files
Also there is something called as Public View Object VO, how different it is from the normal View Object,is there a specific way to create Public View Object and XSD file for that, or its just a normal VO exposed publicly?

Answer 1

Hello
Accessing the pl/sql webservices from the application server:
I have created pl/sql webservice using the nested tables. This will insert the object data into database tables.after deplying the webservice into external oc4j, when I test the webservice locally with url: http://localmachine:8888/PL_SQL_WS-Nest_Obj_Webservice-context-root/ObjWebserviceSoapHttpPort
The above web-services working and I am able to insert into the database tables.
Same when I want to access through the application server, I have changed the wsdl file soap address as
<soap:address location="http://10.91.20.7:8888/PL_SQL_WS-Nest_Obj_Webservice-context-root/ObjWebserviceSoapHttpPort"/>
When I access this url, I am able to give the input data
http://10.91.20.7:8888/PL_SQL_WS-Nest_Obj_Webservice-context-root/ObjWebserviceSoapHttpPort
but the out from the web-service is:
<env:Envelope
xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
<env:Header/>
<env:Body>
<env:Fault
xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
<faultcode>env:Server</faultcode>
<faultstring>Error creating target: DBConnImpMftest.ObjWebserviceUser</faultstring>
<faultactor/>
</env:Fault>
</env:Body>
</env:Envelope>
Err from the OC4j log:<PAYLOAD>
<MSG_TEXT>An error occurred for port: {http://dbconnimpmftest/Nested_Webserv.wsdl}Nested_WebservSoapHttpPort: javax.xml.rpc.JAXRPCException: Error creating target: dbconnimpmftest.Nested_WebservUser.</MSG_TEXT>
</PAYLOAD>
Could any one help me to solve the above issue?
Kind regards
Malathi