db4o Developer Community

this is my solution...   import java.lang.reflect.Field;import java.util.List;import br.com.entrepostosilk.Empresa;import br.com.entrepostosilk.db4objects.Db4oUtil;import com.db4o.query.Predicate;public class CorretorBanco {    public static void main(String[] args) {        CorretorBanco ...

Hi Db4o, I have problems with enums in a network database, c# environment, version Continues Build july 9th, 2008.     public enum GroupEnum { First, Second, Third }    public class Student2    {        public GroupEnum ...

good morning, I have an interface IMorning : public interface IMorning { enum Mood {GOOD,BAD};   Mood getMood(); }    And I have the class Morning   public class Morning implements IMorning, Serializable { private static final long serialVersionUID = 5386061933351709956L;  private Mood mood;  Mood ...

Is is possible to use ObjectManager to view a db4o container when that container uses a translator? I'm using ObjectManager  6.4.14.8131. I can view the container when I don't use a translator. But when I create the container using a translator, ObjectManager is unable to open it. It just hangs.  Also, Is there a way to configure a db4o ...

Hi I'm facing an issue where a typesafe enumeration is not working as expected (see also See COR-831). As example (see also my attachment): public final class TestKeys implements Serializable {    public static final TestKeys ONE = new TestKeys(''ONE'');    public static final TestKeys TWO = new ...

Also I have the same problem as everyone with persisting Enums in the DB. Have anyone found a worksround to this problem? Thanks   

Hi Aziz, We have logged it in Jira COR-465 . You can vote for it. As a  workaround how about compareTo().  Regards, Dheer 

I am using a NL query in Java to do a search with an enum field as a criterion. The field is indexed. It seems that it only works if I compare the ordinal values of the enum. When I say it ''works'' I mean that I get the correct number of objects back. Without the ordinal methods the enum field seems to be treated as unconstrained. Is this ...

Thank you Tetyana. This makes sense. Can you tell me if there are any known problems with using Java enum types in NL queries? Is there a place I should look for these kinds of issues so I don't have to bother the forum? Thanks, Paul

Hello, I'm trying to retrieve a previously stored list of Java enums from my database, but I find the name to be null.The enums are stored in a list which is a fields of another object - the entire structure looks roughly like: public class container{    private final InnerContainer inner;} public class ...