AbstractDao class contains generic methods for data access.Dao interface is most common DAO interface.delete method removes existing entities.T.delete method removes existing entity.delete method removes existing entities.EnumDao class is most common DAO for enumerations.ReadOnlyDao interface is most common read only DAO interface.save method saves list of entities.T.save method saves entity.save method saves list of entities.Copyright © 2013 TFI branch of Engels Instutute of Technology. All Rights Reserved.