C# 对鉴别器值进行投影
我有一张NHibernate地图C# 对鉴别器值进行投影,c#,nhibernate,projection,nhibernate-projections,C#,Nhibernate,Projection,Nhibernate Projections,我有一张NHibernate地图 <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"> <class name="ParentClass" table="myclass" abstract="true" > ... <discriminator column="mytype" type="string" /> ... <subclass name="SubClas
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
<class name="ParentClass" table="myclass" abstract="true" >
...
<discriminator column="mytype" type="string" />
...
<subclass name="SubClass1" discriminator-value="Type1" />
<subclass name="SubClass2" discriminator-value="Type2" />
</class>
</hibernate-mapping>
...
...
那个么,在过滤父类对象时,如何像DAO中的任何属性一样获得鉴别器值的投影呢?
DAO中的代码:
...
using (ISession session = NHibernateSession)
{
ICriteria criteria = session.CreateCriteria<ParentClass>("p")
...
criteria.SetProjection(Projections.ProjectionList()
.Projections.Property("p.Property1")
.Projections.??? // something to get discriminator-value from myclass.mytype column
...
}
...
。。。
使用(ISession会话=NHibernateSession)
{
ICriteria标准=session.CreateCriteria(“p”)
...
criteria.SetProjection(Projections.ProjectionList()的标准)
.物业(“p.物业1”)
.Projections.???//从myclass.mytype列获取鉴别器值的内容
...
}
...
这应该是“p.class”的方式
criteria.SetProjection(Projections.ProjectionList()
.Add(Projections.Property("p.Property1"))
.Add(Projections.Property("p.class"))
);
这应该是“p.class”的方式
criteria.SetProjection(Projections.ProjectionList()
.Add(Projections.Property("p.Property1"))
.Add(Projections.Property("p.class"))
);
如果这有帮助的话!伟大的先生;)享受令人惊叹的NHibernate;)如果有帮助的话!伟大的先生;)享受令人惊叹的NHibernate;)