#1 How to make a simple webapplication?

[Anonymous]

How to make a simple Java based webapplication? There's some documentation about it, but it's not very clear, and there is no available example.
A few pain-points for webapplications:
- how to backup and restore (export/import) the data while the application is running.
- how to fix duplicate (if the appear) in a running database (with Relational DBs this is trivial)
- how to manage/use OIDs if they don't span diferent connections? E.g. User one has a link on it's page for product, et.. page.jsp?oid=1 and sends a link to another user per mail, or it bookmarks it, or whatever. User two is trying to access that link, but it will point to a different product, since it will have a different session (and since Neodatis does not guarantee the persistence of OIDs among sessions) - I see this as the biggest problem so far :(.
- etc. (there seems to be just too many problems using neodatis in webapps - since no concrete example is available :( ).

Thank you in advance,
Mike.