import javax.jdo.annotations.DatastoreIdentity; //导入依赖的package包/类
@SuppressWarnings("rawtypes")
@Test
public void searchAndTest() {
    Reflections reflections = new Reflections("org.estatio.dom");

    Set<Class<? extends UdoDomainObject>> subtypes =
            reflections.getSubTypesOf(UdoDomainObject.class);
    for (Class<? extends UdoDomainObject> subtype : subtypes) {
        if (subtype.isAnonymousClass() || subtype.isLocalClass() || subtype.isMemberClass() || subtype.getName().endsWith("ForTesting")) {
            // skip (probably a testing class)
            continue;
        }
        if (UdoDomainObject.class == subtype || UdoDomainObject2.class == subtype) {
            // skip
            continue;
        }

        System.out.println(">>> " + subtype.getName());

        // must have a @PersistenceCapable(identityType=...) annotation
        final PersistenceCapable persistenceCapable = subtype.getAnnotation(PersistenceCapable.class);
        Assertions.assertThat(persistenceCapable).isNotNull();

        IdentityType identityType = persistenceCapable.identityType();
        Assertions.assertThat(identityType).isNotNull();

        if (identityType == IdentityType.DATASTORE) {
            // NOT mandatory to have a @DatastoreIdentity, but if does, then @DatastoreIdentity(..., column="id")
            final DatastoreIdentity datastoreIdentity = subtype.getAnnotation(DatastoreIdentity.class);
            if (datastoreIdentity != null) {
                Assertions.assertThat(datastoreIdentity.column()).isEqualTo("id");
            }
        }

        Inheritance inheritance = subtype.getAnnotation(Inheritance.class);

        if (inheritance != null && inheritance.strategy() == InheritanceStrategy.SUPERCLASS_TABLE) {
            // must NOT have a @Discriminator(..., column="discriminator")
            final Annotation[] declaredAnnotations = subtype.getDeclaredAnnotations();
            for (Annotation declaredAnnotation : declaredAnnotations) {
                if (declaredAnnotation.annotationType() == Discriminator.class) {
                    Assert.fail("Class " + subtype.getName() + " inherits from " + subtype.getSuperclass().getName()
                            + "and has (incorrectly) been annotated with @Discriminator");
                }
            }

            // check if supertype has discriminator

            // must have a @Discriminator(..., column="discriminator") on one of its supertypes
            final Discriminator superDiscriminator = subtype.getSuperclass().getAnnotation(Discriminator.class);
            Assertions.assertThat(superDiscriminator).isNotNull();
            Assertions.assertThat(superDiscriminator.column()).isEqualTo("discriminator");

        }

        if (subtype.getSuperclass().equals(UdoDomainObject.class)) {
            // must have a @Version(..., column="version")
            final Version version = getAnnotationOfTypeOfItsSupertypes(subtype, Version.class);

            Assertions.assertThat(version).isNotNull();
            Assertions.assertThat(version.column()).isEqualTo("version");
        }

    }
}