Web Dynpro: Where put hibernate hibernate.cfg.xml?

Question

I have seen several people asking about the place to put the config file of Hibernate, but not any conclusive answer until now...
   I created a external library in WAS (I verified using Visual Admin that the lib was correctly deployed). In my Web Dynpro References -> Library Reference I add the library in the format Provider Name/Library Name: "sap.com/hiblibs"
<b>  Where can I store the hibernate.cfg.xml?</b> I have tried put it in all web dynpro folders!
Thanks,
Ivan Garcia
From Brazil
<b>  This is my source code:</b> 
  Configuration cfg = new Configuration();
  cfg.configure("hibernate.conf.xml");
<b>  The error:</b>
  org.hibernate.HibernateException: hibernate.conf.xml not found
    at org.hibernate.util.ConfigHelper.getResourceAsStream(ConfigHelper.java:147)
    at org.hibernate.cfg.Configuration.getConfigurationInputStream(Configuration.java:1402)
    at org.hibernate.cfg.Configuration.configure(Configuration.java:1424)
I have read all  forum topics about this, including:
Where to put config files in webdynpro ?
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/bf0d57db-0c01-0010-6fa3-83503981eed4
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/2ae0614a-0601-0010-a491-a9a635f06613
Problem in placing hibernate.cfg.xml
/people/bala.krishnan2/blog/2006/09/25/bid-adieu-to-bots--using-captchas
/people/valery.silaev/blog/2005/09/14/a-bit-of-impractical-scripting-for-web-dynpro
How to add external jar in web dynpro without going for DC
Web Dynpro References
Using External Library in Web Dynpro - Error
Deploy external jar to WAS 6.40

Answer 1

Hi Ivan,
you need to make sure you place the configuration file where the application server's class loader will find it. If you are running Web Dynpros (or any other web application), you may put it under WEB-INF/classes of your web module.
You may have J2EE applications without any web components - for example if you intend to only provide business logic for web services or rich clients. In this case you may not have any web modules, but will probably have some kind of EJB jars or such. The Hibernate POJOs are a more natural part of such jars rather then WARs (web modules). In this case you can put them under the root of this JAR. The class loader of the SAP J2EE Engine will load any property file placed in the class path of the class loader - whether it's a flat text file or an xml file. WEB-INF/classes or WEB-INF/lib is always in the class path of the (application) class loader.
There is one thing you have to be aware of though. I do not know which version of Hibernate you are working with, but if you look at the source code of hibernate (the binaries are in the hibernate.jar) you will see that, the method Configuration.configure() without any argument will try to load the hibernate.cfg.xml from the current path - which means, the hibernate.jar and the hibernate.cfg.xml will have to reside under the same folder. But you do not seem to do this, so it is OK. This applies to versions of the NetWeaver 6.40 or 6.40s. Most likely this also applies to the new JEE 5 preview version of the NetWeaver application server also available for download on SDN, since to my knowledge the class loadign concepts have not been changed. But I have not tested this yet.
Beyond the How-To-Guide about running Hibernate on NetWeaver (or SAP J2EE Engine) 6.40 we have also provided a sample application and its source code as IDE projects. Take a look at them and you will find the hibernate.cfg.xml file in the deployable EAR.
I hope this answers your question and my comment has been helpful to you.
Cheers, Goran