Package com.vaadin.flow.component.shared

Class ValidationUtil

java.lang.Object

com.vaadin.flow.component.shared.ValidationUtil

public class ValidationUtil
extends Object

Util methods for component validation

Method Summary

Modifier and Type	Method	Description
static <V extends Comparable<V>> com.vaadin.flow.data.binder.ValidationResult	checkGreaterThanMax(V value, V maxValue)	Checks if the value being set to the component is greater than the max value defined
static <V> com.vaadin.flow.data.binder.ValidationResult	checkRequired(boolean required, V value, V emptyValue)	Checks the required validation constraint
static <V extends Comparable<V>> com.vaadin.flow.data.binder.ValidationResult	checkSmallerThanMin(V value, V minValue)	Checks if the value being set to the component is smaller than the max value defined

Methods inherited from class java.lang.Object

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

Method Detail

checkRequired

public static <V> com.vaadin.flow.data.binder.ValidationResult checkRequired(boolean required,
                                                                             V value,
                                                                             V emptyValue)

Checks the required validation constraint

Type Parameters:

V - the type of the component value

Parameters:

required - the required state of the component

value - the current value set on the component

emptyValue - the empty value for the component

Returns:

Validation.ok() if the validation passes, Validation.error() otherwise

checkGreaterThanMax

public static <V extends Comparable<V>> com.vaadin.flow.data.binder.ValidationResult checkGreaterThanMax(V value,
                                                                                                         V maxValue)

Checks if the value being set to the component is greater than the max value defined

Type Parameters:

V - the type of the component value

Parameters:

value - the current value set on the component

maxValue - the max value set on the component

Returns:

Validation.ok() if the validation passes, Validation.error() otherwise

checkSmallerThanMin

public static <V extends Comparable<V>> com.vaadin.flow.data.binder.ValidationResult checkSmallerThanMin(V value,
                                                                                                         V minValue)

Checks if the value being set to the component is smaller than the max value defined

Type Parameters:

V - the type of the component value

Parameters:

value - the current value set on the component

minValue - the min value set on the component

Returns:

Validation.ok() if the validation passes, Validation.error() otherwise