/*
* Copyright 2002-2013 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.samples.petclinic.repository.jdbc;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.DataAccessException;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.simple.ParameterizedBeanPropertyRowMapper;
import org.springframework.jdbc.core.simple.ParameterizedRowMapper;
import org.springframework.samples.petclinic.model.Specialty;
import org.springframework.samples.petclinic.model.Vet;
import org.springframework.samples.petclinic.repository.VetRepository;
import org.springframework.samples.petclinic.util.EntityUtils;
import org.springframework.stereotype.Repository;
/**
* A simple JDBC-based implementation of the {@link VetRepository} interface. Uses @Cacheable to cache the result of the
* {@link findAll} method
*
* @author Ken Krebs
* @author Juergen Hoeller
* @author Rob Harrop
* @author Sam Brannen
* @author Thomas Risberg
* @author Mark Fisher
* @author Michael Isvy
*/
@Repository
public class JdbcVetRepositoryImpl implements VetRepository {
private JdbcTemplate jdbcTemplate;
@Autowired
public JdbcVetRepositoryImpl(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}
/**
* Refresh the cache of Vets that the ClinicService is holding.
*
* @see org.springframework.samples.petclinic.model.service.ClinicService#findVets()
*/
@Override
public Collection<Vet> findAll() throws DataAccessException {
List<Vet> vets = new ArrayList<Vet>();
// Retrieve the list of all vets.
vets.addAll(this.jdbcTemplate.query(
"SELECT id, first_name, last_name FROM vets ORDER BY last_name,first_name",
ParameterizedBeanPropertyRowMapper.newInstance(Vet.class)));
// Retrieve the list of all possible specialties.
final List<Specialty> specialties = this.jdbcTemplate.query(
"SELECT id, name FROM specialties",
ParameterizedBeanPropertyRowMapper.newInstance(Specialty.class));
// Build each vet's list of specialties.
for (Vet vet : vets) {
final List<Integer> vetSpecialtiesIds = this.jdbcTemplate.query(
"SELECT specialty_id FROM vet_specialties WHERE vet_id=?",
new ParameterizedRowMapper<Integer>() {
@Override
public Integer mapRow(ResultSet rs, int row) throws SQLException {
return Integer.valueOf(rs.getInt(1));
}
},
vet.getId().intValue());
for (int specialtyId : vetSpecialtiesIds) {
Specialty specialty = EntityUtils.getById(specialties, Specialty.class, specialtyId);
vet.addSpecialty(specialty);
}
}
return vets;
}
}