what is the difference and similarities between Entity Bean and JavaDataObject(JDO)

Hi guys,
 I have one in doubt. The doubt is what are the differences similarities between the JDO and CMP/BMP entity Bean. (In which way ).
Please give me some example ,which is one is best in which scenerio.
Thanks and regards
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There are three good links to discussions/descriptions on this page.

Morning Tim ;-)
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oh...seems, i'm again too late ;)

hm...what  to say after so many likns have been posted...

1) BMP...forget about it...it's yestarday

2) CMP, you should have edicated application server for it ( i mean dedicated cluster), an you should have really strong reasons to use it, it's for real big projects, when you want your business layer to run separately from DB an presentation layer (i mean phycially). CMP is good if you write enterprise solutions.

3) JDO is for projects , which is more lightly the enterprise solutions, that need DB access, not in terms of relational model, but in terms of Objects. It's very good in most cases. But for me, i prefer Hibernate for it ;)

> 1) BMP...forget about it...it's yestarday

BMP is the same as CMP, but you control the db access
Tim, i know it...it's nonsense don't you think? :)
some transitional step to CMP...i think so
BMP, it's not actual now, i even can't imagine why you want to use EJB in your project and code all DB code by hand....:)
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