Question

实体：

public class Person
{
    public Person(){}

    public virtual long ID { get; set; }
}
public class Employee : Person
{
    public Employee(){}

    public virtual long ID { get; set; }
    public virtual string Appointment { get; set; }
}

映射：

public class PersonMap : ClassMap<Person>
{
    public PersonMap()
    {
        Id(x => x.ID)
            .GeneratedBy.Identity();
    }
}
public class EmployeeMap : SubclassMap<Employee>
{
    public EmployeeMap()
    {
        KeyColumn("ID");

        Map(x => x.Appointment)
            .Not.Nullable()
            .Length(50);
    }
}

Person表中的2个项目员工表中的1项（1个基础班，1个孩子班）

查询：var list = Session.CreateQuery("from Person").List<Person>();
返回：
0 | ID = 1
1 | ID = 0，约会=“SomeAppointment”

Answer 1

public class Employee : Person
{
    public Employee(){}

    public virtual long ID { get; set; }
    public virtual string Appointment { get; set; }
}

public virtual long ID {get;组; } - 不应该在这里。

从父表中选择返回ID = 0子对象的列值

1 个答案: