Java Class Web Service

Question

Which the best way to make a webservice based on a java class in JDeveloper 10.1.2?
I need to make a webservice that make some queries in views of BPEL's dehydration DB, but I would not like that this webservice was a BPEL process in the Process Manager, with gone off instances being to each query. Therefore I intend to make a java class that it executes the queries and it returns the results.
However it would like a structuralized payload, instead of returning a primitive and soap-serialized type, I would like to return a complex type.
Example of return message:
... SOAP Message ...
<payload>
<sensors>
<sensor>
<date>2006-sep-11</date>
<activity>invoke partner</activity>
</sensor>
<sensor>
<date>2006-sep-11</date>
<activity>receive partner</activity>
</sensor>
</sensors>
</payload>
... SOAP Message ...
Well, JDeveloper 10.1.2 can't make this work easiest for me ... the wizard can't work with classes returning complex types.
I tried many ways to do this: top-down and bottom-up approach's, but without success.
Also tried made a wsdl and using schemac generate facades classes, write a deploy file and, and after some difficult made the deploy in my OC4J. But invoking the webservice the server returns this message:
"javax.servlet.ServletException: WSDL Generation exception: java.lang.Exception org.collaxa.thirdparty.dom4j.Namespace is not a java bean: must have a default constructor"
Well, sorry, but I'm a java newbie and I have no idea about what can I do in this case. But I think that the error isn't in my class. :-(
Ok, also tried to do this, for test, in JDeveloper 10.1.3, but without success too.
Following some examples and tutorials, I tried to use the wizard "Create J2EE webservice" using WSIF, but doesn't works for me.
I read the blog posts:
"Revisiting Java and WSIF"
http://blogs.oracle.com/reynolds/2006/08/10#a112
"Using Java from BPEL"
http://blogs.oracle.com/reynolds/discuss/msgReader$10?mode=day
And many others...
But, in fact, the things doesn't works like in the tutorials...
Someone can help-me?
Thanks for help and sorry for my rusted english.

Answer 1

As far as I can tell, the SOAPContext is not magically there in Oracle Web services so you have to revert to Oracle SOAP (which is where the OracleSOAPContext comes from and is pretty much Apache SOAP 2.3.1 with fixes and a couple things to make it work in our environment - e.g. like a slightly updated SOAPContext class).
We ship Oracle SOAP with our distribution in the soap.ear file located in the <oc4J_home>\soap\webapps directory. Just add this line (tailored to your config) to your server.xml:
<application name="soap" path="../../../soap/webapps/soap.ear" auto-start="true" />
and the line:
<web-app application="soap" name="soap" root="/soap" />
to your http-web-site.xml and your Oracle SOAP environment should be set up with an endpoint of:
http://127.0.0.1:8888/soap/servlet/soaprouter
Then build your Web service and in your method add the SOAPContext parameter. Here is a simple method that should print out the remote IP, after casting to the OracleSOAPContext:
public String sayHello( SOAPContext ctx, String test)
OracleSOAPContext octx = (OracleSOAPContext)ctx;
System.out.println("Remote address: " + octx.getRemoteAddress());
return "Hello: " + test;
For completeness, the dd file looks like:
<?xml version = '1.0' encoding = 'windows-1252'?>
<isd:service
id="mypackage3.Class1"
xmlns:isd="http://xml.apache.org/xml-soap/deployment">
<isd:provider
type="java"
methods="sayHello"
scope="Request">
<isd:java class="mypackage3.Class1" static="false"/>
</isd:provider>
<isd:faultListener>org.apache.soap.server.DOMFaultListener</isd:faultListener>
</isd:service>
Mike.