package org.kuali.student.enrollment.lpr.dao;

 import java.io.Serializable;

 import java.util.List;

 /**

  * Interface, that describes default methods of Dao objects for entity.

  *

  * @author ihar

  */

 public interface EntityDao<T> {

         /**

          * Find object by primary key.

          *

          * @param primaryKey Primary key

          * @return Entity for given key

          */

         T find(Serializable primaryKey);

         /**

          * Find objects of specified class by primary keys.

          *

          * @param primaryKeys - list of Primary keys

          * @return Entity for given key

          */

         public List<T> findByIds(List<? extends Serializable> primaryKeys);

         /**

          * Load all entities of this type.

          *

          * @return List of entities

          */

         List<T> findAll();

         /**

          * Persist unsaved object.

          *

          * @param entity Entity to save

          */

         void persist(T entity);

         /**

          * Update detached object.

          *

          * @param entity Entity to update

          */

         void update(T entity);

         /**

          * Merge detached object.

          *

          * @param entity Entity to save

          * @param <T>    the Entity type

          * @return Merged entity.

          */

         <T> T merge(T entity);

         /**

          * Remove entity from the persistent store.

          *

          * @param entity Entity to remove

          */

         void remove(T entity);

 }