public interface Subject {

	static NumericProperty<Long> ID = NumericProperty.longType("id");
	static StringProperty NAME = StringProperty.create("name");
	static StringProperty SURNAME = StringProperty.create("surname");
	static TemporalProperty<LocalDate> BIRTH = TemporalProperty.localDate("birth");
	static BooleanProperty ACTIVE = BooleanProperty.create("active");
	static VirtualProperty<String> FULL_NAME = VirtualProperty.create(String.class,
			propertyBox -> propertyBox.getValue(NAME) + " " + propertyBox.getValue(SURNAME));
	
	static PropertySet<?> SUBJECT = PropertySet.of(ID, NAME, SURNAME, BIRTH, ACTIVE, FULL_NAME);

}

static StringProperty NAME = StringProperty.create("name").message("Name").messageCode("localization.name")
			.withConfiguration("my-config", "my-value");

static StringProperty INTEGER_MODEL = StringProperty.create("integer_value").converter(Integer.class,
			integer -> String.valueOf(integer), string -> Integer.valueOf(string));

static StringProperty NAME = StringProperty.create("name")
			.withValidator(Validator.notBlank()).withValidator(Validator.max(50));

String value = NAME.present("A value");
MyType myType = NAME.render(MyType.class);

PropertyBox propertyBox = PropertyBox.create(SUBJECT);
		
String name = propertyBox.getValue(NAME);
Optional<String> oname = propertyBox.getValueIfPresent(NAME);
propertyBox.setValue(NAME, "John");
propertyBox.propertyValues().forEach(propertyValue -> {
	Property<?> property = propertyValue.getProperty();
	Object value = propertyValue.getValue();
});

DataTarget<?> TARGET = DataTarget.named("subjects");
Datastore datastore = getDatastore();

Stream<PropertyBox> results = datastore.query().target(TARGET)
	.filter(NAME.contains("a").and(SURNAME.isNotNull())).sort(BIRTH.desc()).stream(SUBJECT);

Stream<String> names = datastore.query(TARGET).aggregate(SURNAME).stream(NAME.max());

Optional<String> name = datastore.query(TARGET).filter(ID.eq(1L)).findOne(NAME);

datastore.insert(TARGET, PropertyBox.builder(SUBJECT).set(ID, 1L).set(NAME, "John").set(ACTIVE, true).build());
datastore.bulkUpdate(TARGET).set(ACTIVE, true).filter(BIRTH.lt(LocalDate.now())).execute();

datastore.query(TARGET).filter(ID.eq(1L)).findOne(SUBJECT).ifPresent(subject -> datastore.delete(TARGET, subject));

class MyBean {
	private @NotNull Long id;
	private @Caption("The name") String name;
	private @Caption("The surname") String surname;
	/* getters and setters omitted */
}

BeanPropertySet<MyBean> propertySet = BeanPropertySet.create(MyBean.class);
		
PathProperty<?> name = propertySet.property("name");
PathProperty<String> typedName = propertySet.property("name", String.class);
		
BeanDatastore datastore = BeanDatastore.of(getDatastore());
		
Stream<MyBean> results = datastore.query(MyBean.class).filter(propertySet.property("name").eq("John")).stream();
		
datastore.save(new MyBean());

Realm realm = Realm.builder().withAuthenticator(Authenticator.create(MyAuthenticationToken.class, token -> {
	if ("test".equals(token.getPrincipal())) {
		return Authentication.builder("test").withPermission("ROLE1").build();
	}
	throw new UnknownAccountException();
}))
.withDefaultAuthorizer().build();

Realm.builder().withAuthenticator(Account.authenticator(id -> Optional.of(Account.builder(id).build()))).build();

AuthContext context = AuthContext.create(realm);
context.authenticate(AuthenticationToken.accountCredentials("test", "pwd"));
		
Optional<Authentication> authentication = context.getAuthentication();
boolean permitted = context.isPermitted("ROLE1", "ROLE2");

RestClient client = RestClient.forTarget("https://rest.api.example");
		
ResponseEntity<TestData> response = client.request()
	.path("test/{id}").resolve("id", 123)
	.accept(MediaType.APPLICATION_JSON)
	.header("MY_HEADER", "my-value")
	.authorizationBearer("An389fz56xsr7")
	.get(TestData.class);
HttpStatus status = response.getStatus();
Optional<TestData> payload = response.getPayload();
		
Optional<TestData> data = client.request().path("test/{id}").resolve("id", 123)
				.getForEntity(TestData.class);
		
List<TestData> results = client.request().path("test").getAsList(TestData.class);
		
client.request().path("test").post(RequestEntity.json(new TestData()));
		
Optional<PropertyBox> propertyBox = client.request().path("test2")
				.propertySet(PROPERTIES).getForEntity(PropertyBox.class); 

LocalizationContext localizationContext = LocalizationContext.builder()
	.withMessageProvider(MessageProvider.fromProperties("messages").build())
	.withDefaultDateTemporalFormat(TemporalFormat.MEDIUM)
	.withInitialLocale(Locale.US)
	.build();
		
localizationContext.localize(Locale.ITALY);
		
String localized = localizationContext.getMessage("message.code", "Default message");
		
String formatted = localizationContext.format(LocalDate.now());
formatted = localizationContext.format(123.4d);
		
Optional<LocalizationContext> current = LocalizationContext.getCurrent();