com.vaadin.flow.data.binder.RequiredFieldConfigurator API 14.12.5 | Vaadin

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com.vaadin.flow.data.binder.

All Superinterfaces:

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

Since:

1.0

Author:

Vaadin Ltd

See Also:

BeanValidationBinder, BeanValidationBinder.setRequiredConfigurator(RequiredFieldConfigurator)

Field Summary

Fields
Modifier and Type	Field and 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 where the default value is empty.
`static RequiredFieldConfigurator`	`NOT_NULL` Configurator which is aware of @NotNull annotation presence for a property where the default value is `null`.
`static RequiredFieldConfigurator`	`SIZE` Configurator which is aware of Size annotation with `min()> 0` presence for a property where the size of the default value is 0.

Method Summary

All Methods
Modifier and Type	Method and Description
`default RequiredFieldConfigurator`	`chain(RequiredFieldConfigurator configurator)` Returns a configurator that chains together this configurator with the given configurator.

Methods inherited from interface java.util.function.BiPredicate
and, negate, or, test

- Field Detail
  - NOT_NULL
```
static final RequiredFieldConfigurator NOT_NULL
```
    Configurator which is aware of @NotNull annotation presence for a property where the default value is null.
  - NOT_EMPTY
```
static final RequiredFieldConfigurator NOT_EMPTY
```
    Configurator which is aware of @NotEmpty annotation presence for a property where the default value is empty.
  - SIZE
```
static final RequiredFieldConfigurator SIZE
```
    Configurator which is aware of Size annotation with min()> 0 presence for a property where the size of the default value is 0.
  - 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)
```
    Returns a configurator that chains together this configurator with the given configurator.
    
    Parameters:
    
    configurator - the configurator to chain, , not null
    
    Returns:
    
    a chained configurator