On 5/9/05, Ron Grabowski <[EMAIL PROTECTED]> wrote: > Gilles, I've looked at the code for the new <discriminator> node for > <resultMap>s and I can't get my head around it. I believe the idea came > from the Hibernate people: > > http://www.hibernate.org/hib_docs/reference/en/html/inheritance.html > http://groups-beta.google.com/groups?q=Hibernate+discriminator > > From reading those articles, is it correct to say that I use a > discriminator to decide how sub-objects are populated? > Is a <discriminator> used in conjunction with <subMap> nodes? This url:
Yes > http://tinyurl.com/c9vk8 > http://svn.apache.org/repos/asf/incubator/ibatis/trunk/cs/mapper/IBatisNet.DataMapper.Test/Maps/MSSQL/SqlClient/Document.xml > > has the following text: > > <resultMap id="document" class="Document"> > <result property="Id" column="Document_ID"/> > <result property="Title" column="Document_Title"/> > <discriminator column="Document_Type" /> > <subMap value="Book" resultMapping="book" /> > <subMap value="Newspaper" resultMapping="newspaper" /> > </resultMap> > > Can I replace that with this: > > <resultMap id="document" class="Document"> > <result property="Id" column="Document_ID"/> > <result property="Title" column="Document_Title"/> > <discriminator column="Document_Type" /> > </resultMap> > > Do I need to use <subMap> nodes when I use a <discriminator> node? You need, have you watch the nunit test and the doc ? there is an email on ibatis-dev named "Inheritance" (May 5) which contains the last pdf doc
