Interface UserRepository

All Superinterfaces:
org.springframework.data.repository.CrudRepository<User,Long>, org.springframework.data.jpa.repository.JpaRepository<User,Long>, org.springframework.data.repository.ListCrudRepository<User,Long>, org.springframework.data.repository.ListPagingAndSortingRepository<User,Long>, org.springframework.data.repository.PagingAndSortingRepository<User,Long>, org.springframework.data.repository.query.QueryByExampleExecutor<User>, org.springframework.data.repository.Repository<User,Long>
@Repository public interface UserRepository extends org.springframework.data.jpa.repository.JpaRepository<User,Long>
Spring Data JPA repository for User entities. Provides standard CRUD operations and lookup methods by username.
See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    existsByUsername(String username)
    Checks whether a user with the given username already exists.
    Optional<User>
    findByUsername(String username)
    Finds a user by their unique username.

    Methods inherited from interface org.springframework.data.repository.CrudRepository

    count, delete, deleteAll, deleteAll, deleteAllById, deleteById, existsById, findById, save

    Methods inherited from interface org.springframework.data.jpa.repository.JpaRepository

    deleteAllByIdInBatch, deleteAllInBatch, deleteAllInBatch, deleteInBatch, findAll, findAll, flush, getById, getOne, getReferenceById, saveAllAndFlush, saveAndFlush

    Methods inherited from interface org.springframework.data.repository.ListCrudRepository

    findAll, findAllById, saveAll

    Methods inherited from interface org.springframework.data.repository.ListPagingAndSortingRepository

    findAll

    Methods inherited from interface org.springframework.data.repository.PagingAndSortingRepository

    findAll

    Methods inherited from interface org.springframework.data.repository.query.QueryByExampleExecutor

    count, exists, findAll, findBy, findOne

  • Method Details

    • findByUsername

      Optional<User> findByUsername(String username)
      Finds a user by their unique username.
      Parameters:
      username - the username to search for
      Returns:
      an Optional containing the user if found

    • existsByUsername

      boolean existsByUsername(String username)
      Checks whether a user with the given username already exists.
      Parameters:
      username - the username to check
      Returns:
      true if a user with this username exists