[ http://issues.apache.org/jira/browse/IBATIS-278?page=comments#action_12372413 ]
ron riley commented on IBATIS-278: ---------------------------------- This problem occurs if the superclass, e.g. Animal, class is abstract and a new, unmapped, subclass is introduced into the data. E.g. if, in this example, a 'Reptile' is added as an ANIMAL_SUBCLASS but not mapped, when iBatis will try to create an Animal: it would be nice if the resultMap element supported an 'abstract' attribute and even better if it could throw an 'Unmapped Discriminator' exception. > sqlmap support resultMap for abstract class > ------------------------------------------- > > Key: IBATIS-278 > URL: http://issues.apache.org/jira/browse/IBATIS-278 > Project: iBatis for Java > Type: Improvement > Components: SQL Maps > Versions: 2.1.7 > Reporter: ron riley > Priority: Minor > > please allow for abstract superclasses to be mapped in resultMaps, to > support, for example: > <resultMap class="Animal" id="lazyAnimal"> > <result property="name" column="ANIMAL_NAME" /> > <discriminator javaType="string" column="ANIMAL_SUBCLASS"> > <subMap value="canine" resultMap="canine"/> > <subMap value="feline" resultMap="feline"/> > </discriminator> > </resultMap> > > <resultMap class="Feline" id="feline"> > <result property="name" column="ANIMAL_NAME" /><!-- dtd > requires a property to be mapped --> > </resultMap> > <resultMap class="Canine" id="canine"> > <result property="name" column="ANIMAL_NAME"/> > </resultMap> > at present this example gets an instantiation exception if the Animal class > is abstract. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
