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db4o open source object database, native to Java and .NET
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  • Solution of ID increment (come discuss my suggestion)

    I was going thru some of this stuff, but I'd found no answer for auto-increment on db4o-tutorial, so here's what I came up with, I'd really enjoy if you guys would give your points of view about it... Simple OO stuff, let's make a SuperEntity abstract class..I'm using C# for it.  using Db4o; public abstract class SuperEntity { } ...
    Posted to db4o User Forum (Forum) by tapgyn on April 12, 2008
  • Beginner Question: Sub Instances? [DB Design]

    Hi there! Beeing new to OOP and OODB, i have a question regarding to designing an oo database: Assume you have a class ''car''. A user should be able to create/derive some kind of ''prototype instances'' or ''prototype classes'', like mazda-xyz, bmw-m9 and so on with a gui. But at the same time there shold be instances to be generated ...
    Posted to db4o User Forum (Forum) by Flo2x on March 18, 2008
  • DB4O and Hashtables

    hi db4o community, i don't have success when trying to store an object that contains a hashtable. does anyone have sample classes or sample code concerning usage of hashtables to be stored with db4o? any help and hints are highly appreciated. thank you.   kind regards   yb   
    Posted to db4o User Forum (Forum) by yetibrain on September 10, 2007