Fluid mapping composite nhibernate key with firebird bank

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Fluid mapping composite nhibernate key with firebird bank

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#1 by (1 votes)

0

I am having difficulty in composing primary key mapping using fluent nhibernate. I have the following class:

 public class NotaItem
{
    public NotaItem(){}

    public virtual int Id { get; set; } //chave primaria
    public virtual Int16 NumeroSequencialItem { get; set; } //chave primaria
    public virtual Int16 NumeroOrdem { get; set; }
}

Mapping:

 public class NotaItemMap : ClassMap<NotaItem>
{
    public NotaItemMap()
    {
        Table("NOTITEM");

        //Chave primária
        CompositeId().KeyReference(x => x.Id, "NOTIT_ID")
       .KeyProperty(x =>  x.NumeroSequencialItem, "NOTIT_NR_SEQUENCIAL_ITEM");

        Map(x => x.NumeroOrdem)
       .Column("NOTIT_NR_ORDEM")
       .Not.Nullable();
    }
}

I'd like to know the best way to do this implementation, because that way it's not working. Note: The primary key fields is not auto increment.

Exception Log: Exception:

FluentNHibernate.Cfg.FluentConfigurationException: An invalid or   was used while creating a SessionFactory.   Check PotentialReasons collection, and InnerException for more detail.

---> FluentNHibernate.Cfg.FluentConfigurationException: An invalid or   was used while creating a SessionFactory.   Check PotentialReasons collection, and InnerException for more detail.

---> NHibernate.MappingException: Could not compile the mapping   document: (XmlDocument) --- > NHibernate.MappingException: composite-id   class must override Equals ():   TrainingNHibernate.Core.Entity.NoteItem in   NHibernate.Cfg.XmlHbmBinding.ClassCompositeIdBinder.CheckEqualsAndGetHashCodeOverride ()   in   NHibernate.Cfg.XmlHbmBinding.ClassCompositeIdBinder.BindCompositeId (HbmCompositeId   idSchema, PersistentClass rootClass) in   NHibernate.Cfg.XmlHbmBinding.RootClassBinder.Bind (HbmClass   classSchema, IDictionary 2 inheritedMetas) em NHibernate.Cfg.XmlHbmBinding.MappingRootBinder.AddEntitiesMappings(HbmMapping mappingSchema, IDictionary 2 inheritedMetas) in   NHibernate.Cfg.XmlHbmBinding.MappingRootBinder.Bind (HbmMapping   mappingSchema) in   NHibernate.Cfg.Configuration.AddDeserializedMapping (HbmMapping   mappingDocument, String documentFileName) --- End of crawl   stack of internal exceptions --- in   NHibernate.Cfg.Configuration.LogAndThrow (Exception exception) in   NHibernate.Cfg.Configuration.AddDeserializedMapping (HbmMapping   mappingDocument, String documentFileName) in   NHibernate.Cfg.Configuration.ProcessMappingsQueue () in   NHibernate.Cfg.Configuration.AddInputStream (Stream xmlInputStream,   String name) in   NHibernate.Cfg.Configuration.AddDocument (XmlDocument doc, String name)   in NHibernate.Cfg.Configuration.AddDocument (XmlDocument doc) in   FluentNHibernate.PersistenceModel.Configure (Configuration cfg) in   FluentNHibernate.Cfg.MappingConfiguration.Apply (Configuration cfg)
  in FluentNHibernate.Cfg.FluentConfiguration.BuildConfiguration ()
  --- End of internal exception stack trace --- in FluentNHibernate.Cfg.FluentConfiguration.BuildConfiguration () in   FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory () ---   End of stack trace of internal exceptions --- in   FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory () in   TrainingNHibernate.Data.SessionFactory.SessionFactoryUtil..cctor ()   at   E: \ VisualCSharp \ Projects \ TrainingNHibernate \ TrainingNHibernate.Data \ SessionFactory \ SessionFactoryUtil.cs: line   46

c# nhibernate chave-composta fluent-nhibernate

asked by anonymous 02.02.2016 / 18:15

1 answer

Error making CheckBox visible GET / POST for the same page?

score 1 · Accepted Answer

The problem is described in the error error log in the following line: composite-id class must override Equals() , where to use and map a CompositeId (compound key) in your mapping, you must override the Equals() of your entity, making it represent the composite keys in a unique way.

In your case something like this:

// override object.Equals
public override bool Equals(object obj)
{
    if (obj == null || GetType() != obj.GetType())
    {
        return false;
    }

    NotaItem other = obj as NotaItem;
    if (other == null)
        return false;
    if (Id == other.Id && NumeroSequencialItem == other.NumeroSequencialItem)
        return true;
    return base.Equals(obj);
}