Examples with Binding com.vaadin.flow.data.binder.Binder.Binding used on opensource projects

Example 6 with Binding

use of com.vaadin.flow.data.binder.Binder.Binding in project flow by vaadin.

the class BinderConverterValidatorTest method binder_saveIfValid.

@Test
public void binder_saveIfValid() {
    String msg1 = "foo";
    BindingBuilder<Person, String> binding = binder.forField(nameField).withValidator(new NotEmptyValidator<>(msg1));
    binding.bind(Person::getFirstName, Person::setFirstName);
    String beanValidatorErrorMessage = "bar";
    binder.withValidator(Validator.from(bean -> false, beanValidatorErrorMessage));
    Person person = new Person();
    String firstName = "first name";
    person.setFirstName(firstName);
    binder.readBean(person);
    nameField.setValue("");
    assertFalse(binder.writeBeanIfValid(person));
    // check that field level-validation failed and bean is not updated
    assertEquals(firstName, person.getFirstName());
    assertInvalidField(msg1, nameField);
    nameField.setValue("new name");
    assertFalse(binder.writeBeanIfValid(person));
    // Bean is updated but reverted
    assertEquals(firstName, person.getFirstName());
    assertValidField(nameField);
}