我正在使用 H2 数据库运行设置为 DataJpaTest 的单元测试。它运行良好,直到我使用子选择引入了一个新的不可变实体集。它不会中断,但它找不到应有的数据。我在 SQL 中看到它正确地连接到 Subselect 查询。
当像应用程序一样正常运行时,@Subselect 实体工作正常,因此这在某种程度上是单元测试设置的问题。
这是我的主要实体:
@Entity
@DynamicUpdate
@Getter
@Setter
@EqualsAndHashCode(onlyExplicitlyIncluded = true, callSuper = false)
@Table(name = "apps", schema = "public")
public class App extends BaseEntity
{
@Id
@Column(name = "app_id", nullable = false)
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "ent_generator")
@SequenceGenerator(name = "ent_generator", sequenceName = "entity_seq", allocationSize = 1)
private long appId;
@EqualsAndHashCode.Include
@Basic
@Column(name = "app_name", length = 200)
private String appCode;
@EqualsAndHashCode.Include
@Basic
@Column(name = "app_ver_name", length = 200)
private String appVersion;
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "parent_app_id")
private App parent;
// ...
@OneToMany(
mappedBy = "app",
cascade = CascadeType.ALL,
orphanRemoval = true
)
private Set<TrainingRequirement> trainingRequirements = new HashSet<>();
@OneToMany(mappedBy = "app")
private Set<EffectiveTrainingRequirement> effectiveTrainingRequirements = new HashSet<>();
// ...
}
这是我的@Subselect 实体:
@Entity
@Immutable
@Subselect(
"SELECT\n" +
" tr.trn_req_id AS trn_req_id\n" +
" , tr.app_id AS app_id\n" +
" FROM apps a\n" +
" JOIN training_reqs tr\n" +
"-- ...")
@Synchronize({"apps","training_reqs"})
public class EffectiveTrainingRequirement
{
@Id
@Column(name = "trn_req_id", nullable = false)
private long trainingRequirementId;
@EqualsAndHashCode.Include
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "app_id")
private App app;
}
这是单元测试代码(相关部分大大减少):
@RunWith(SpringRunner.class)
@DataJpaTest
public class TrainingRequirementRepositoryTest
{
@Autowired
private TestEntityManager entityManager;
@Autowired
private AppRepository appRepository;
@Before
public void setup()
{
// ...
app4 = new App(organization, "a4");
app4.addTrainingRequirement(new TrainingRequirement("treq6", c6));
app4.addTrainingRequirement(new TrainingRequirement("treq7", c7, tr1));
app4.addTrainingRequirement(new TrainingRequirement("treq8", c8, tr2));
entityManager.persist(app4);
app4v2 = new App(organization, "a4", app4, "v2");
app4v2.setParent(app4);
app4v2.addTrainingRequirement(treq7chg = new TrainingRequirement("treq7", c7, tr2));
treq7chg.setChangeType(InheritOverride.CHANGE);
app4v2.addTrainingRequirement(treq6rmv = new TrainingRequirement("treq6"));
treq6rmv.setChangeType(InheritOverride.REMOVE);
app4v2.addTrainingRequirement(treq9add = new TrainingRequirement("treq9", c9, tr4));
treq9add.setChangeType(InheritOverride.ADDITION);
entityManager.persist(app4v2);
}
@Test
public void test_AppWithEffectiveTR()
{
App app = appRepository.getAppWithParent(organization, "a4", "v2").get();
logger.debug("# tr: "+app.getTrainingRequirements().size());
logger.debug("# etr: "+app.getEffectiveTrainingRequirements().size());
for (EffectiveTrainingRequirement tr : app.getEffectiveTrainingRequirements())
logger.debug("tr: "+tr.toString());
}
}
存储库:
@Repository
public interface AppRepository extends CrudRepository<App, Long>
{
String APP_FETCH_QUERY = "SELECT a FROM App a " +
"LEFT JOIN FETCH a.parent p " +
"LEFT JOIN FETCH a.trainingRequirements atr " +
"LEFT JOIN FETCH a.effectiveTrainingRequirements ";
@Query(value = APP_FETCH_QUERY +
"WHERE a.organization = :org " +
" AND a.appCode = :appCode " +
" AND a.appVersion = :appVersion" )
Optional<App> getAppWithParent(@Param("org") Organization org,
@Param("appCode") String appCode,
@Param("appVersion") String appVersion);
}
我认为您不能将 @Subselect 实体与内存数据库一起使用。缺少数据库结构来处理子选择中的本机查询。