Gets all mappable target fields. Normally this is the set of fields in the target specified, however if the mapped element in mapping is an entity in a hierarchy of TargetPerEntityHierarchy, fields which are already mapped in supertypes or subtypes are filtered out.

Gets all mappable target fields. Normally this is the set of fields in the target specified, however if the mapped element in mapping is an entity in a hierarchy of TargetPerEntityHierarchy, fields which are already mapped in supertypes or subtypes are filtered out.