Package org.springframework.data.jpa.repository.query

Source Code of org.springframework.data.jpa.repository.query.PartTreeJpaQueryIntegrationTests

/*
* Copyright 2011-2013 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License
import org.springframework.aop.framework.Advised;
");
* 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.data.jpa.repository.query;

import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
import static org.springframework.test.util.ReflectionTestUtils.*;

import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.Date;
import java.util.Iterator;
import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
import javax.persistence.TemporalType;

import org.hibernate.Version;
import org.hibernate.ejb.HibernateQuery;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.sample.User;
import org.springframework.data.jpa.repository.Temporal;
import org.springframework.data.jpa.repository.support.PersistenceProvider;
import org.springframework.data.repository.Repository;
import org.springframework.data.repository.core.support.DefaultRepositoryMetadata;
import org.springframework.data.repository.query.Param;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

/**
* Integration tests for {@link PartTreeJpaQuery}.
*
* @author Oliver Gierke
*/
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:infrastructure.xml")
public class PartTreeJpaQueryIntegrationTests {

  @Rule public ExpectedException thrown = ExpectedException.none();

  @PersistenceContext EntityManager entityManager;

  /**
   * @see DATADOC-90
   * @throws Exception
   */
  @Test
  public void test() throws Exception {

    Method method = UserRepository.class.getMethod("findByFirstname", String.class, Pageable.class);
    JpaQueryMethod queryMethod = new JpaQueryMethod(method, new DefaultRepositoryMetadata(UserRepository.class),
        PersistenceProvider.fromEntityManager(entityManager));
    PartTreeJpaQuery jpaQuery = new PartTreeJpaQuery(queryMethod, entityManager);

    jpaQuery.createQuery(new Object[] { "Matthews", new PageRequest(0, 1) });
    jpaQuery.createQuery(new Object[] { "Matthews", new PageRequest(0, 1) });
  }

  @Test
  public void cannotIgnoreCaseIfNotString() throws Exception {

    thrown.expect(IllegalStateException.class);
    thrown.expectMessage("Unable to ignore case of java.lang.Integer types, the property 'id' must reference a String");
    testIgnoreCase("findByIdIgnoringCase", 3);
  }

  @Test
  public void cannotIgnoreCaseIfNotStringUnlessIgnoringAll() throws Exception {

    testIgnoreCase("findByIdAllIgnoringCase", 3);
  }

  /**
   * @see DATAJPA-121
   */
  @Test
  public void recreatesQueryIfNullValueIsGiven() throws Exception {

    Method method = UserRepository.class.getMethod("findByFirstname", String.class, Pageable.class);
    JpaQueryMethod queryMethod = new JpaQueryMethod(method, new DefaultRepositoryMetadata(UserRepository.class),
        PersistenceProvider.fromEntityManager(entityManager));
    PartTreeJpaQuery jpaQuery = new PartTreeJpaQuery(queryMethod, entityManager);

    Query query = jpaQuery.createQuery(new Object[] { "Matthews", new PageRequest(0, 1) });

    HibernateQuery hibernateQuery = getValue(query, "h.target." + (isHibernate43() ? "jpqlQuery" : "val$jpaqlQuery"));
    assertThat(hibernateQuery.getHibernateQuery().getQueryString(), endsWith("firstname=:param0"));

    query = jpaQuery.createQuery(new Object[] { null, new PageRequest(0, 1) });

    hibernateQuery = getValue(query, "h.target." + (isHibernate43() ? "jpqlQuery" : "val$jpaqlQuery"));
    assertThat(hibernateQuery.getHibernateQuery().getQueryString(), endsWith("firstname is null"));
  }

  private void testIgnoreCase(String methodName, Object... values) throws Exception {

    Class<?>[] parameterTypes = new Class[values.length];
    for (int i = 0; i < values.length; i++) {
      parameterTypes[i] = values[i].getClass();
    }
    Method method = UserRepository.class.getMethod(methodName, parameterTypes);
    JpaQueryMethod queryMethod = new JpaQueryMethod(method, new DefaultRepositoryMetadata(UserRepository.class),
        PersistenceProvider.fromEntityManager(entityManager));
    PartTreeJpaQuery jpaQuery = new PartTreeJpaQuery(queryMethod, entityManager);
    jpaQuery.createQuery(values);
  }

  @SuppressWarnings("unchecked")
  private static <T> T getValue(Object source, String path) {

    Iterator<String> split = Arrays.asList(path.split("\\.")).iterator();
    Object result = source;

    while (split.hasNext()) {
      result = getField(result, split.next());
    }

    return (T) result;
  }

  private static boolean isHibernate43() {
    return Version.getVersionString().startsWith("4.3");
  }

  interface UserRepository extends Repository<User, Long> {

    Page<User> findByFirstname(String firstname, Pageable pageable);

    User findByIdIgnoringCase(Integer id);

    User findByIdAllIgnoringCase(Integer id);

    List<User> findByCreatedAtAfter(@Temporal(TemporalType.TIMESTAMP) @Param("refDate") Date refDate);
  }
}
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