The class that represents a mapped entity instance and provides methods for managing its.
TMappedEntityClass = class of TMappedEntity;
TMappedEntity intended to hold the instance of an entity that is mapped to the particular database table. TMappedEntity is updatable, it can be saved to the database or deleted. Those entities that are the result of a query execution and can not be mapped to the particular table, are represented with the TUnmappedEntity class instances.