I'm trying to map the following class structure by code, but failing
miserabley. I'm using Firebird as my database and NHibernante 3.3.1.400.
public abstract Behaviour : Entity<Long>
{
public abstract Product Process(Product product);
}
public class DiscountBehaviour : Behaviour
{
public virtual float Discount{ get; set; }
public override Product Process(Product product) { /* some logic*/ }
}
public class NewPriceBehaviour : Behaviour
{
public virtual decimal NewPrice { get; set; }
public override Product Process(Product product) { /* some logic*/ }
}
This is my mapping:
public class BehaviourMap : ClassMapping<Behaviour>
{
public BehaviourMap()
{
Id(x => x.Id);
}
}
public class DiscountBehaviourMap :
JoinedSubclassMapping<DiscountBehaviour>
{
public DiscountBehaviourMap()
{
Key(k => k.Column("`BehaviourId`"));
Property(x => x.Discount);
}
}
public class NewPriceBehaviourMap :
JoinedSubclassMapping<NewPriceBehaviour>
{
public NewPriceBehaviourMap()
{
Key(k => k.Column("`BehaviourId`"));
Property(x => x.NewPrice);
}
}
My database script looks like this:
CREATE TABLE ""Behaviour"" (
""Id"" ""Key"" NOT NULL,
CONSTRAINT ""PkBehaviour"" PRIMARY KEY (""Id""));
CREATE TABLE ""DiscountPricingBehaviour"" (
""Id"" ""Key"" NOT NULL,
""BehaviourId"" ""Key"" NOT NULL,
""Discount"" FLOAT NOT NULL,
CONSTRAINT ""PkDiscountPricingBehaviour"" PRIMARY KEY (""Id""),
CONSTRAINT ""FkDPBehaviourBehaviour""
FOREIGN KEY (""BehaviourId"")
REFERENCES ""Behaviour"" (""Id""));
When trying to commit this transaction I get the following error in
Firebird:
validation error for column Id, value "*** null ***"
So my question is really... what am I missing here? Is there any
documentation that might lead me in the right direction, or should I look
in the code?
Best Regards
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