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All Tags » Java 5 » db4o 6.0   (RSS)
  • ObjectManager is throwing a NullPointerException

    I have a reasonably fresh DB that is throwing a NPE when I try to open it with ObjectManager: We're using db4o-6.4.54.11278-java5.jar.  I tried to attached the offending DB, but the upload script is not responding saying the machine must be down.  I'll try again later. Any ideas why this is happening? Charlie Exception stack trace ...
    Posted to db4o User Forum (Forum) by chubbard on October 2, 2008
  • Unable to start with db4o

    i am trying to run my first program on db4o but got stuck, i have made a package with Util.java, pilot.java and sumit.java I am getting errorrs while compiling sumit.java and here is the code [code] package a;import java.io.File;import com.db4o.Db4o;import com.db4o.ObjectContainer;import com.db4o.ObjectSet;import a.Util;    ...
    Posted to db4o User Forum (Forum) by ping.sumit on December 18, 2007
  • Re: Native Queries in Client Server

    Okay, I finally figured out what the problem was with my NQ in Client/Server.  It basically came down to the anonymous inner class and how DB4O sends the query over the network to the server.  It wasn't able to serialize it correctly, so the query didn't work.  I moved my Predicates out of the dao class and into their own.  ...
    Posted to db4o User Forum (Forum) by bmg125 on August 3, 2007