package com.gkhy.testFourierSpecialGasMonitor.repository;


import com.gkhy.testFourierSpecialGasMonitor.entity.GasCategory;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
import org.springframework.data.jpa.repository.Query;
import org.springframework.stereotype.Repository;

import java.util.List;

@Repository
public interface GasCategoryRepository extends JpaRepository<GasCategory,Integer>, JpaSpecificationExecutor<GasCategory> {

    GasCategory findByMolecularFormula(String molecularFormula);

    @Query(value = "select t from GasCategory t where t.id <= 3")
    List<GasCategory> findGasCategoryForReport();
}