Package fr.becpg.repo.repository

Interface CrudRepository<T,ID extends Serializable>

All Known Subinterfaces:
AlfrescoRepository<T>
All Known Implementing Classes:
AlfrescoRepositoryImpl
public interface CrudRepository<T,ID extends Serializable>
Interface for generic CRUD operations on a repository for a specific type.
Version:
$Id: $Id
Author:
Oliver Gierke, Eberhard Wolff

  • Method Summary

    Modifier and Type
    Method
    Description
    long
    count()
    Returns the number of entities available.
    void
    delete(ID id)
    Deletes the entity with the given id.
    void
    delete(Iterable<? extends T> entities)
    Deletes the given entities.
    void
    delete(T entity)
    Deletes a given entity.
    void
    deleteAll()
    Deletes all entities managed by the repository.
    boolean
    exists(ID id)
    Returns whether an entity with the given id exists.
    Iterable<T>
    findAll()
    Returns all instances of the type.
    T
    findOne(ID id)
    Retrives an entity by its primary key.
    Iterable<T>
    save(Iterable<? extends T> entities)
    Saves all given entities.
    T
    save(T entity)
    Saves a given entity.

  • Method Details

    • save

      T save(T entity)
      Saves a given entity. Use the returned instance for further operations as the save operation might have changed the entity instance completely.
      Parameters:
      entity - a T object.
      Returns:
      the saved entity

    • save

      Iterable<T> save(Iterable<? extends T> entities)
      Saves all given entities.
      Parameters:
      entities - a Iterable object.
      Returns:
      a Iterable object.

    • findOne

      T findOne(ID id)
      Retrives an entity by its primary key.
      Parameters:
      id - a ID object.
      Returns:
      the entity with the given primary key or null if none found
      Throws:
      IllegalArgumentException - if primaryKey is null

    • exists

      boolean exists(ID id)
      Returns whether an entity with the given id exists.
      Parameters:
      id - a ID object.
      Returns:
      true if an entity with the given id exists, alse otherwise
      Throws:
      IllegalArgumentException - if primaryKey is null

    • findAll

      Iterable<T> findAll()
      Returns all instances of the type.
      Returns:
      all entities

    • count

      long count()
      Returns the number of entities available.
      Returns:
      the number of entities

    • delete

      void delete(ID id)
      Deletes the entity with the given id.
      Parameters:
      id - a ID object.

    • delete

      void delete(T entity)
      Deletes a given entity.
      Parameters:
      entity - a T object.

    • delete

      void delete(Iterable<? extends T> entities)
      Deletes the given entities.
      Parameters:
      entities - a Iterable object.

    • deleteAll

      void deleteAll()
      Deletes all entities managed by the repository.