我的对象映射如下:
<class name="A" table="TableA">
<id name="ID" column="AId" type="Int32" unsaved-value="0">
<generator class="native" />
</id>
<discriminator column="Type" type="Int32" />
<property name="Description" />
</class>
<subclass name="B" discriminator-value="0" extends="A">
<property name="B_specific_properties />
</subclass>
<subclass name="C" discriminator-value="1" extends="A">
<property name="C_specific_properties />
</subclass>
我打算使用存储过程来执行插入,目前B和C都使用相同的存储过程插入到表中。我的问题是上面映射的对象,sql-insert是否属于A类?如果是,是否期望在对象A上执行save()?如何在保存时识别B和C的附加属性?
OR
使用一个存储过程为两个子类保存一个不可能完成的任务,虽然它们属于同一个表吗?
非常感谢您的任何意见!
答案 0 :(得分:0)
我会告诉你我是怎么做到的
<class name="CompanyCharacteristic" table="firma_cecha" abstract="true" discriminator-value="not null">
<id name="Id" column="id_firma_cecha">
<generator class="native" />
</id>
<discriminator column="typ_cechy"/>
<property name="FriendlyTypeName" column="typ_cechy" insert="false" update="false"/>
<property name="All" column="cecha_all" access="nosetter.camelcase"/>
<!-- Auditing data -->
<property name="UserInserted" access="nosetter.camelcase" column="user_insert" insert="true" update="false"/>
<property name="DateInserted" column="data_insert" generated="insert" insert="false" update="false"/>
<subclass discriminator-value="Akceptacja kart płatniczych" name="CreditCardAcceptanceCharacteristic">
<property name="DoesIt" column="cecha_dec_1" not-null="true" type="DataAccess.NHibernate.Infrastructure.UserTypes.EnumValueInfoUserType`1[[Domain.Characteristics.YesNoNumericEnum, Domain]], DataAccess"/>
<sql-insert>
DECLARE @returned decimal(20,0)
exec sp_FirmaCecha_Add
@TypCechy = 'Akceptacja kart płatniczych',
@CechaAll = ?,
@UserInsertZrodlo = ?,
@CechaDec1 = ?,
@IdFirmaCecha = @returned OUTPUT
SELECT @returned
</sql-insert>
<sql-update>
exec sp_FirmaCecha_Update
@TypCechy = 'Akceptacja kart płatniczych',
@UserUpdateZrodlo = ?,
@CechaDec1 = ?,
@IdFirmaCecha = ?
</sql-update>
<sql-delete>
exec sp_FirmaCecha_Delete ?
</sql-delete>
</subclass>
<sql-insert>
raiserror ('CompanyInfoCharacteristic nie moze byc dodwana za pomocą NHibernate',11,1)
</sql-insert>
<sql-update>
raiserror ('CompanyInfoCharacteristic nie moze byc aktualizowana za pomocą NHibernate.',11,1)
</sql-update>
<sql-delete>
raiserror ('CompanyInfoCharacteristic nie moze byc kasowana za pomocą NHibernate.',11,1)
</sql-delete>
正如您所看到的,每个子类都需要拥有自己的sql语句。基类也可以有自己的语句。在这个例子中,我不允许通过NHibernate
修改Base类实例