Package com.vaadin.flow.data.binder

Interface BinderValidationErrorHandler

All Superinterfaces:

Serializable

All Known Implementing Classes:

DefaultBinderValidationErrorHandler

public interface BinderValidationErrorHandler
extends Serializable

Handler for applying effects to HasValue components in Binder based on ValidationResult for the user input. Use Binder.setValidationErrorHandler(BinderValidationErrorHandler) to register an instance of this class to be able to customize validation error handling.

Since:

Author:

Vaadin Ltd

See Also:

• DefaultBinderValidationErrorHandler
• Binder.setValidationErrorHandler(BinderValidationErrorHandler)

Method Summary

Modifier and Type	Method	Description
void	clearError(HasValue<?,?> field)	Clears the error condition of the given field, if one has been previously set with handleError(com.vaadin.flow.component.HasValue<?, ?>, com.vaadin.flow.data.binder.ValidationResult).
void	handleError(HasValue<?,?> field, ValidationResult result)	Handles a validation error emitted when trying to write the value of the given field.

Method Details

handleError

void handleError(HasValue<?,?> field,
 ValidationResult result)

Handles a validation error emitted when trying to write the value of the given field.

See #clearError for clearing the error.

Parameters:

field - the field with the invalid value

result - the validation error result

See Also:

• clearError(HasValue)

clearError

void clearError(HasValue<?,?> field)

Clears the error condition of the given field, if one has been previously set with handleError(com.vaadin.flow.component.HasValue<?, ?>, com.vaadin.flow.data.binder.ValidationResult).

Parameters:

field - the field to clear the previous error from

See Also:

• handleError(HasValue, ValidationResult)