Package com.vaadin.ui

Interface ItemCaptionGenerator<T>

Type Parameters:

T - item type

All Superinterfaces:

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

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 interface ItemCaptionGenerator<T>
extends SerializableFunction<T,String>

ItemCaptionGenerator can be used to customize the string shown to the user for an item.

Since:

8.0

Author:

Vaadin Ltd

See Also:

ComboBox.setItemCaptionGenerator(ItemCaptionGenerator)

Method Summary

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

Methods inherited from interface java.util.function.Function

andThen, compose

Method Detail

apply

String apply(T item)

Gets a caption for the item.

Specified by:

apply in interface Function<T,String>

Parameters:

item - the item to get caption for

Returns:

the caption of the item; null will be shown as an empty string