Using an external web service and XMLBeans

Question

I have an external document/literal web service that I want to use
(call) from inside workshop. I have listed a small example at the end
of this email.
I am wondering if there is a way to call and receive from the web
service using XMLBeans. In the tutorial examples XMLBeans are only
used by marshaling and unmarshaling the xml structure into a string
which is what is actually passed according to the WSDL. However, in
this case (and I personally think in most cases) the schema is
explicitly described in the WSDL and passed as the message. I might
add the structures for my real service are much more complex and so
the value of XMLBeans is certainly applicable to them.
Clearly I can somehow save off the schema and generate XMLBeans from
it. The next step is much less clear, how do I tell my JCX to use the
beans instead of generating private classes to represent the
structures?
To be honest I am a little surprised that for 8.1 the WSDL->JCX stuff
doesn't just leverage XMLBeans by default instead of generating basic
classes. This would give the power of XMLBeans to all web service
calls.
thanks,
dave
*** Sample WSDL ***
<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions xmlns:tns="urn:tutorial/hello"
targetNamespace="urn:tutorial/hello"
xmlns:s="http://www.w3.org/2001/XMLSchema"
xmlns="http://schemas.xmlsoap.org/wsdl/"
xmlns:apachesoap="http://xml.apache.org/xml-soap"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<wsdl:types>
<s:schema targetNamespace="urn:tutorial/hello">
     <s:element name="sayHelloResponse" >
<s:complexType>
<s:sequence>
<s:element name="sayHelloReturn" type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
     <s:element name="sayHello" >
<s:complexType>
<s:sequence>
<s:element name="caller" type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
</s:schema>
</wsdl:types>
<wsdl:message name="sayHelloRequestMsg">
<wsdl:part name="message" element="tns:sayHello"/>
</wsdl:message>
<wsdl:message name="sayHelloResponseMsg">
<wsdl:part name="sayHelloReturn" element="tns:sayHelloResponse"/>
</wsdl:message>
<wsdl:portType name="HelloWorld">
<wsdl:operation name="sayHello" >
<wsdl:input message="tns:sayHelloRequestMsg" />
<wsdl:output message="tns:sayHelloResponseMsg" />
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="HelloWorldServiceSoapBinding"
type="tns:HelloWorld">
<wsdlsoap:binding style="document"
transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="sayHello">
<wsdlsoap:operation soapAction=""/>
<wsdl:input name="sayHelloRequestMsg">
<wsdlsoap:body use="literal"/>
</wsdl:input>
<wsdl:output name="sayHelloResponseMsg">
<wsdlsoap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="HelloWorldService">
<wsdl:port binding="tns:HelloWorldServiceSoapBinding"
name="HelloWorldService">
<wsdlsoap:address
location="http://localhost:18080/tutorial/HelloWorldService"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>

Answer 1

FYI, there is a XMLBeans newsgroup; w/ good feedback from the
developers:
http://newsgroups.bea.com/cgi-bin/dnewsweb?cmd=xover&group=weblogic.developer.interest.xmlbeans
Bruce Stephens wrote:
>
Hi David,
We are on the road, headed in that direction; pedal to the metal, etc.
just not there...yet.
We appreciate and value your input.
Thanks,
Bruce
David Rees wrote:
I have an external document/literal web service that I want to use
(call) from inside workshop. I have listed a small example at the end
of this email.
I am wondering if there is a way to call and receive from the web
service using XMLBeans. In the tutorial examples XMLBeans are only
used by marshaling and unmarshaling the xml structure into a string
which is what is actually passed according to the WSDL. However, in
this case (and I personally think in most cases) the schema is
explicitly described in the WSDL and passed as the message. I might
add the structures for my real service are much more complex and so
the value of XMLBeans is certainly applicable to them.
Clearly I can somehow save off the schema and generate XMLBeans from
it. The next step is much less clear, how do I tell my JCX to use the
beans instead of generating private classes to represent the
structures?
To be honest I am a little surprised that for 8.1 the WSDL->JCX stuff
doesn't just leverage XMLBeans by default instead of generating basic
classes. This would give the power of XMLBeans to all web service
calls.
thanks,
dave
*** Sample WSDL ***
<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions xmlns:tns="urn:tutorial/hello"
targetNamespace="urn:tutorial/hello"
xmlns:s="http://www.w3.org/2001/XMLSchema"
xmlns="http://schemas.xmlsoap.org/wsdl/"
xmlns:apachesoap="http://xml.apache.org/xml-soap"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<wsdl:types>
<s:schema targetNamespace="urn:tutorial/hello">
<s:element name="sayHelloResponse" >
<s:complexType>
<s:sequence>
<s:element name="sayHelloReturn" type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
<s:element name="sayHello" >
<s:complexType>
<s:sequence>
<s:element name="caller" type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
</s:schema>
</wsdl:types>
<wsdl:message name="sayHelloRequestMsg">
<wsdl:part name="message" element="tns:sayHello"/>
</wsdl:message>
<wsdl:message name="sayHelloResponseMsg">
<wsdl:part name="sayHelloReturn" element="tns:sayHelloResponse"/>
</wsdl:message>
<wsdl:portType name="HelloWorld">
<wsdl:operation name="sayHello" >
<wsdl:input message="tns:sayHelloRequestMsg" />
<wsdl:output message="tns:sayHelloResponseMsg" />
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="HelloWorldServiceSoapBinding"
type="tns:HelloWorld">
<wsdlsoap:binding style="document"
transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="sayHello">
<wsdlsoap:operation soapAction=""/>
<wsdl:input name="sayHelloRequestMsg">
<wsdlsoap:body use="literal"/>
</wsdl:input>
<wsdl:output name="sayHelloResponseMsg">
<wsdlsoap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="HelloWorldService">
<wsdl:port binding="tns:HelloWorldServiceSoapBinding"
name="HelloWorldService">
<wsdlsoap:address
location="http://localhost:18080/tutorial/HelloWorldService"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>