package org.imageconverter.domain.conversion;
   
   import java.util.Optional;
   
   import org.springframework.data.jpa.repository.JpaRepository;
   import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
   import org.springframework.data.repository.PagingAndSortingRepository;
   
   /**
   * Image Conversion's repository
   * 
   * @author Fernando Romulo da Silva
   */
  public interface ImageConversionRepository extends JpaRepository<ImageConversion, Long>, JpaSpecificationExecutor<ImageConversion>, PagingAndSortingRepository<ImageConversion, Long> {
  
  //    @Query("select o from ImageConversion o where o.fileName = :fileName")
      /**
       * Find a image conversion by file name.
       * 
       * @param fileName The conversion file name
       * @return A {@link Optional} with {@link ImageConversion} or a empty {@link Optional}
       */
      Optional<ImageConversion> findByFileName(String fileName);
      
      // Not supported yet
      // Slice<ImageConversion> findAllSlice(Pageable page, Specification<ImageConversion> spec);
  
  }