The simplest way to convert EJB 2.0 project to EJB 3.0

What is the simplest way to convert EJB 2.0 (WebLogic 8.1) project to EJB 3.0 (OAS or WebLogic etc)?

I found just this article "Converting an EJB 2.0 Entity Bean to EJB 3.0", which could automate 开发者_如何学Pythonthis process, but forced to do too much manual manipulations.

---

IMO, you can't really convert an EJB 2.1 project to an EJB 3.x project. You can however migrate and this is a project by itself. Some more resources:

• Migrating EJB 2.1 Entity and Session Beans to EJB 3.0
• Migrating EJB 2.x applications to EJB 3.0

---

Use Intellij's "Apply EJB 3.0 Style" tool. It automates a lot of the painful steps, especially replacing ejb-jar.xml configurations with annotations. Migration can be applied incrementally (you select the ejb's) or all at once. It does other steps for you as well; details here:

http://www.jetbrains.com/idea/webhelp/migrating-to-ejb-3-0.html

I found this to be immensely helpful and worth the price of an Intellij license all by itself for the number of hours it saved me. I did not find anything comparable in either Eclipse or Netbeans.

An old, but helpful, additional resource: http://www.javaworld.com/javaworld/jw-08-2006/jw-0814-ejb.html?page=1