com.vaadin.data.BinderValidationStatusHandler Maven / Gradle / Ivy
/*
* Copyright (C) 2000-2024 Vaadin Ltd
*
* This program is available under Vaadin Commercial License and Service Terms.
*
* See for the full
* license.
*/
package com.vaadin.data;
import com.vaadin.event.SerializableEventListener;
/**
* Handler for {@link BinderValidationStatus} changes.
*
* {@link Binder#setValidationStatusHandler(BinderValidationStatusHandler)
* Register} an instance of this class to be able to customize validation status
* handling.
*
* The default handler will show
* {@link com.vaadin.ui.AbstractComponent#setComponentError(com.vaadin.server.ErrorMessage)
* an error message} for failed field validations. For bean level validation
* errors it will display the first error message in
* {@link Binder#setStatusLabel(com.vaadin.ui.Label) status label}, if one has
* been set.
*
* @author Vaadin Ltd
*
* @see BinderValidationStatus
* @see Binder#validate()
* @see BindingValidationStatus
*
* @param
* the bean type of binder
*
* @since 8.0
*/
@FunctionalInterface
public interface BinderValidationStatusHandler
extends SerializableEventListener {
/**
* Invoked when the validation status has changed in binder.
*
* @param statusChange
* the changed status
*/
void statusChange(BinderValidationStatus statusChange);
}