RequiredFieldConfigurator (vaadin-all 8.27.7 API)

All Superinterfaces:

Predicate<Annotation>, Serializable, SerializablePredicate<Annotation>
```
public interface RequiredFieldConfigurator
extends SerializablePredicate<Annotation>
```
This interface represents a predicate which returns true if bound field should be configured to have required indicator via HasValue.setRequiredIndicatorVisible(boolean).

Since:

8.0

Author:

Vaadin Ltd

See Also:

BeanValidationBinder, BeanValidationBinder.setRequiredConfigurator(RequiredFieldConfigurator)

Field Summary

Fields
Modifier and Type	Field	Description
`static RequiredFieldConfigurator`	`DEFAULT`	Default configurator which is combination of `NOT_NULL`, `NOT_EMPTY` and `SIZE` configurators.
`static RequiredFieldConfigurator`	`NOT_EMPTY`	Configurator which is aware of @NotEmpty annotation presence for a property.
`static RequiredFieldConfigurator`	`NOT_NULL`	Configurator which is aware of @NotNull annotation presence for a property.
`static RequiredFieldConfigurator`	`SIZE`	Configurator which is aware of Size annotation with `min()> 0` presence for a property.

Method Summary

All Methods Instance Methods Default Methods
Modifier and Type Method Description

default RequiredFieldConfigurator chain(RequiredFieldConfigurator configurator)
- Methods inherited from interface java.util.function.Predicate
  and, or, test
- Methods inherited from interface com.vaadin.server.SerializablePredicate
  and, negate, or

- Field Detail
  - NOT_NULL
```
static final RequiredFieldConfigurator NOT_NULL
```
    Configurator which is aware of @NotNull annotation presence for a property.
  - NOT_EMPTY
```
static final RequiredFieldConfigurator NOT_EMPTY
```
    Configurator which is aware of @NotEmpty annotation presence for a property.
  - SIZE
```
static final RequiredFieldConfigurator SIZE
```
    Configurator which is aware of Size annotation with min()> 0 presence for a property.
  - DEFAULT
```
static final RequiredFieldConfigurator DEFAULT
```
    Default configurator which is combination of NOT_NULL, NOT_EMPTY and SIZE configurators.
- Method Detail
  - chain
```
default RequiredFieldConfigurator chain(RequiredFieldConfigurator configurator)
```