How EJB can be replaced for RMI When...

Hi All
How EJB can be a replacement for RMI , when all the EJB functionalities can be done with RMI.
For example middle-ware services available in both EJB and RMI. In EJB it's been taken care by the container. in RMI we have to write it explicitly.
What's the difference then....?
Aravind

I believe there must be something more than that ...in EJBOfcourse there are so many.
Actually when RMI came into existance then Java used to use that JRMP (Java remote method protocol) meaning is that there was not support for non-java clients. Then after that IIOP came into picture (Internet Inter ORB protocol) means CORBA compliant, thereby allowed non-java clients to get connected to ur java severs.
What I think is ....main feature that EJB have is that they are transactions aware. I don't know How to do it in RMI so robustly. One thing more, CMP Entity beans provide you an easy way to store ur data, I don't think, u can do so in RMI without writing complex queries.
I myself not very sure about RMI, but EJBs are makets. I have never done any realworld work with RMI but for EJBs I have gone through 3-4 live realworld projects.
Hope this helps !!!
Cheers.
Sanjeev

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