<?xml version="1.0" encoding="utf-8" ?> 
<sqlMap namespace="Document" >

	<resultMap id="document" class="Document">
		<result property="Id"			column="Document_ID"/>
		<result property="Title"			column="Document_Title"/>
		<discriminator column="Document_Type" type="string"/> 
		<subMap value="Book" resultMapping="book" />
		<subMap value="Newspaper" resultMapping="newspaper" />
	</resultMap>
	
	<resultMap id="document-custom-handler" class="Document">
		<result property="Id"			column="Document_ID"/>
		<result property="Title"		column="Document_Title"/>
		<discriminator column="Document_Type"  typeHandler="CustomInheritance"/> 
		<subMap value="Book" resultMapping="book" />
		<subMap value="Newspaper" resultMapping="newspaper" />
	</resultMap>
	
	<resultMap id="book" class="Book" extends="document">
		<result property="PageNumber"		column="Document_PageNumber"/>
	</resultMap>
	
	<resultMap id="newspaper" class="Newspaper"  extends="document">
		<result property="City"			column="Document_City"/>
	</resultMap>
	
	<select id="GetAllDocument"
		resultMap="document">
		select 
			*
		from Documents 
		order by Document_Type, Document_ID
	</select>

	<select id="GetTypedCollection"
		listClass="DocumentCollection"
		resultMap="document">
		select 
			*
		from Documents 
		order by Document_Type, Document_ID
	</select>
			
	<select id="GetAllDocumentWithCustomTypeHandler"
		resultMap="document-custom-handler">
		select
			*
		from Documents 
		order by Document_Type, Document_ID
	</select>
	
</sqlMap>