Package com.vaadin.flow.component.checkbox

Interface CheckboxGroup.ItemHelperGenerator<T>

Type Parameters:

T - item type

All Superinterfaces:

Function<T,String>, Serializable, SerializableFunction<T,String>

Enclosing class:

CheckboxGroup<T>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static interface CheckboxGroup.ItemHelperGenerator<T>
extends SerializableFunction<T,String>

CheckboxGroup.ItemHelperGenerator can be used to generate helper text strings used by the checkbox group for each checkbox.

Since:

24.4

See Also:

• HasHelper.setHelperText(String)

Method Summary

Modifier and Type	Method	Description
String	apply(T item)	Gets a helper text string for the item.

Methods inherited from interface java.util.function.Function

andThen, compose

Method Details

apply

String apply(T item)

Gets a helper text string for the item.

Specified by:

apply in interface Function<T,String>

Parameters:

item - the item to get helper text for

Returns:

the helper text string for the item, not null