Java PersistenceCapable類代碼示例

import javax.jdo.annotations.PersistenceCapable; //導入依賴的package包/類
@Test
public void shouldBuildEnhancedDDE() throws Exception {
    FieldDto strField = fieldDto("testStr", String.class);
    FieldDto boolField = fieldDto("testBool", Boolean.class);
    strField.setReadOnly(true);
    boolField.setReadOnly(true);

    fields.addAll(asList(
            strField, boolField, fieldDto("fromUser", DateTime.class)
    ));
    when(entity.getClassName()).thenReturn(EntBuilderTestClass.class.getName());

    ClassData classData = entityBuilder.buildDDE(entity, fields, bundle);
    Class<?> builtClass = MDSClassLoader.getStandaloneInstance()
            .defineClass(classData.getClassName(), classData.getBytecode());

    assertField(builtClass, "testStr", String.class, "defValForTestStr");
    assertField(builtClass, "testBool", boolean.class, false, "is");
    assertField(builtClass, "fromUser", DateTime.class);

    // check annotations
    assertNotNull(builtClass.getAnnotation(PersistenceCapable.class));
    java.lang.reflect.Field field = builtClass.getDeclaredField("testStr");
    assertNotNull(field.getAnnotation(Unique.class));
}
 

import javax.jdo.annotations.PersistenceCapable; //導入依賴的package包/類
@Override
protected AnnotationObject isClassPersistable(Class cls) {
    AnnotationObject annotationObject = super.isClassPersistable(cls);

    // if super does not recognize this object as PC, then try looking for the Entity annotation
    // only when FileMetadata has been already loaded
    if (annotationObject == null && ReflectionsUtil.hasAnnotation(cls, Entity.class) &&
             !ArrayUtils.isEmpty(mgr.getFileMetaData())) {
        // default params
        HashMap<String, Object> annotationParams = new HashMap<>();
        annotationParams.put("identityType", IdentityType.DATASTORE);

        Class superClass = cls.getSuperclass();
        while (superClass != null) {
            if (superClass == MdsEntity.class || superClass == MdsVersionedEntity.class) {
                annotationParams.put("identityType", IdentityType.APPLICATION);
            }
            superClass = superClass.getSuperclass();
        }

        annotationParams.put("detachable", Constants.Util.TRUE);

        // we fake a persistence capable annotation
        annotationObject = new AnnotationObject(PersistenceCapable.class.getName(), annotationParams);
    }

    return annotationObject;
}
 

import javax.jdo.annotations.PersistenceCapable; //導入依賴的package包/類
@Test
public void shouldRecognizeRegularPCAnnotation() {
    AnnotationObject result = mdsJdoAnnotationReader.isClassPersistable(JustPc.class);

    assertEquals(PersistenceCapable.class.getName(), result.getName());
    assertNotNull(result.getNameValueMap());
    assertEquals("false", result.getNameValueMap().get("cacheable"));
    assertEquals("true", result.getNameValueMap().get("detachable"));
}
 

import javax.jdo.annotations.PersistenceCapable; //導入依賴的package包/類
@Test
public void shouldRecognizeEntityAnnotation() {
    when(metaDataManager.getFileMetaData()).thenReturn(new FileMetaData[1]);
    AnnotationObject result = mdsJdoAnnotationReader.isClassPersistable(Record.class);

    assertEquals(PersistenceCapable.class.getName(), result.getName());
    assertNotNull(result.getNameValueMap());
    assertEquals(IdentityType.DATASTORE, result.getNameValueMap().get("identityType"));
    assertEquals("true", result.getNameValueMap().get("detachable"));
}
 

import javax.jdo.annotations.PersistenceCapable; //導入依賴的package包/類
@Test
public void shouldPrioritizePersistenceCapableAnnotationValuesOverEntityDefaults() {
    AnnotationObject result = mdsJdoAnnotationReader.isClassPersistable(PcAndEntity.class);

    assertEquals(PersistenceCapable.class.getName(), result.getName());
    assertNotNull(result.getNameValueMap());
    assertEquals(IdentityType.APPLICATION, result.getNameValueMap().get("identityType"));
    assertEquals("false", result.getNameValueMap().get("detachable"));
    assertEquals("testCatalog", result.getNameValueMap().get("catalog"));
}
 

import javax.jdo.annotations.PersistenceCapable; //導入依賴的package包/類
@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");
        }

    }
}