com.vaadin.flow.data.binder

Class RequiredFieldConfiguratorUtil

java.lang.Object

com.vaadin.flow.data.binder.RequiredFieldConfiguratorUtil

public class RequiredFieldConfiguratorUtil
extends Object

Helper methods used by RequiredFieldConfigurator. The methods are extracted to a separate class to prevent populating the public API of the RequiredFieldConfigurator interface.

Since:

1.0

Author:

Vaadin Ltd

Method Summary

Modifier and Type	Method and Description
static boolean	hasZeroSize(Object value) Checks whether the given object would be considered empty according to the Size constraint.
static boolean	testConvertedDefaultValue(Binder.BindingBuilder<?,?> binding, Predicate<Object> predicate) Tests the converted default value of the provided binding builder if possible.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

hasZeroSize

public static boolean hasZeroSize(Object value)

Checks whether the given object would be considered empty according to the Size constraint.

Parameters:

value - the value to check

Returns:

true if the value is supported by the size constraint, otherwise false

testConvertedDefaultValue

public static boolean testConvertedDefaultValue(Binder.BindingBuilder<?,?> binding,
                                                Predicate<Object> predicate)

Tests the converted default value of the provided binding builder if possible.

Parameters:

binding - the binding builder to test

predicate - predicate for testing the converted default value

Returns:

true if a converted default value is available and it passes the test; false if no converted default value is available or if it doesn't pass the test