source: src/main/java/com/project/beautycenter/service/impl/BeautyCenterServiceImpl.java

package com.project.beautycenter.service.impl;

import com.project.beautycenter.model.Beautycenter;
import com.project.beautycenter.repository.BeautyCenterRepository;
import com.project.beautycenter.service.BeautyCenterService;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class BeautyCenterServiceImpl implements BeautyCenterService {
    private final BeautyCenterRepository beautyCenterRepository;

    public BeautyCenterServiceImpl(BeautyCenterRepository beautyCenterRepository) {
        this.beautyCenterRepository = beautyCenterRepository;
    }

    @Override
    public List<Beautycenter> listAll() {
        return this.beautyCenterRepository.findAll();
    }

    @Override
    public Beautycenter findById(String Id) {
        return this.beautyCenterRepository.findById(Id).orElseThrow(NullPointerException::new);
    }
}