package com.chantha.jdbc.jpa.service.order; import com.chantha.jdbc.jpa.model.Order; import org.springframework.stereotype.Service; import java.util.Optional; @Service public class OrderServiceImpl implements OrderService{ @Override public S save(S s) { return null; } @Override public Iterable saveAll(Iterable iterable) { return null; } @Override public Optional findById(Long aLong) { return Optional.empty(); } @Override public boolean existsById(Long aLong) { return false; } @Override public Iterable findAll() { return null; } @Override public Iterable findAllById(Iterable iterable) { return null; } @Override public long count() { return 0; } @Override public void deleteById(Long aLong) { } @Override public void delete(Order order) { } @Override public void deleteAll(Iterable iterable) { } @Override public void deleteAll() { } }