This interface specifies the signature for a factory that takes a DataReader type and creates a domain object from it.
这个接口为一个工厂定义了使用datareader类型创建一个域(domain)对象的签名。
This factory is specific to a single operation (for example, UpdateCustomer); it generates an appropriate DbCommand command to modify a domain object in the database.
这个工厂只针对单个操作(例如，UpdateCustomer)；它产生一个对应的DbCommand来完成数据库域对象的修改。
This interface-to-factory class generates a DbCommand to delete a domain object from the database.
这个工厂接口类产生一个用来删除域对象的DbCommand。
This interface-to-factory class generates a DbCommand to delete a domain object from the database.
这个工厂接口类产生一个用来删除域对象的DbCommand。
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