We have a large PowerBuilder/Oracle application. The db consists of over 500 tables and the client consists of several thousand PB components. A user creates “transactions” which contain a series of “sub-transactions” within. Most of the data is collected and stored locally in the client in a series of datastores. When the “finalize” happens, the records are validated and sent to the database.

We are in the process of moving each of the subtransactions (currently in the PB client) into subPROCESSES on a java project. We are using the JAX-WS framework to develop the web services in Netbeans. For writing data back to the database, we are using the Java Persistence API to function outside of an EJB container but will shortly be migrating to the Glassfish application server to use several of the EJB container frameworks including the EntityManager.

I’m trying to figure out a deployment methodology that will provide minimal impact on existing applications and maximal re-use of code (i.e. loosely coupled).

We will want to use the persistence code, the data access code, and a few other pieces of code in several applications.

Is it common practice to use the same libraries over and over in several applications?

What are some common deployment models?

How can we determine where our breaks between applications should be so that we can loosely couple code in a sane manner?

Any suggestions would be so helpful and appreciated!

Thanks!

As for your suggestion, I did use the oracle jax-rpc client libraries in my project, I only added my own wsdl4j and jax-rpc-api saaj jars. For whatever reason in the embedded oc4j, the container still loads the oracle ws libraries.

You would think that this is a very common thing to do, however the boys at Oracle have no clue which I find rather surpring since this is nothing abnormal. Anyway, steven davelaar and mike de groot didnt know, perhaps I should try one league up and email Steve muench. Thanks for the effort anyway..

Have you tried to pack your application as a ear file, containing the standard Java JAX-RPC libs, to a stand-alone OC4J container.

What you also could try is to remove the Oracle JAX-RPC libraries from your project properties and add the specific Java JAX-RPC..

If it still not work after trying the suggestions above, you can also post on the JDeveloper forum on OTN…

I ran in to a problem with jdevelopers embedded OC4J container when using web service libraries such as wsdl4j, saaj, jax-rpc.
With the code that I am currently writing, for example I used wsdl4j from Axis:

import javax.wsdl.factory.WSDLFactory;
import javax.wsdl.xml.WSDLReader;

WSDLFactory wsdlFactory = WSDLFactory.newInstance();
WSDLReader reader = wsdlFactory.newWSDLReader();

As this code runs normal in the jvm, it didn’t work any more ones I had deployed to oc4j and ran it from a servlet.
When I started the debugger, I noticed that the ‘reader’ variable in the code example above, was of type oracle.j2ee.ws.wsdl.xml.WSDLReaderImpl instead of type javax.wsdl.xml.WSDLReader.

Apparently oc4j’s class-loader can’t resolve the wsdl4j.jar and uses the standard webservice jar files that are contained in the Oracle JAX-RPC CLIENT library that come with the jdeveloper installation. If I am not mistaken these are located at …\jdev1013\webservices\lib\ .

I also notices that in this lib directory oracle contains jar files for saaj, jax-rpc ect.
Does this mean you are tied down to using the oracle implementation’s of these components, or is there a way to use libraries of your chosing ?
If not I have a huge problem, either I refactor my code to work with the oracle libraries or I abandon jdeveloper completely.
Without being able to deploy my own jar files to oc4j, jdeveloper is of no use to me.. unfortunately because until now I found it a great tool.

So, NetBeans was smart enough to use JAX-WS 2.0 just by seeing the jar files there? Or, did you have to mess around with Ant scripts?

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