Package org.vaadin.miki.superfields.variant

Interface TypedFieldProvider<T,C extends com.vaadin.flow.component.Component & com.vaadin.flow.component.HasValue<?,T>>

Type Parameters:
T - Type of value.
C - Returned component.
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 TypedFieldProvider<T,C extends com.vaadin.flow.component.Component & com.vaadin.flow.component.HasValue<?,T>>
Marker interface for objects that provide components based on a given value.
Since:
2022-04-11
Author:
miki

  • Method Summary

    Modifier and Type
    Method
    Description
    static <V, W extends com.vaadin.flow.component.Component & com.vaadin.flow.component.HasValue<?, V>>
    TypedFieldProvider<V,W>
    of(Class<V> type, com.vaadin.flow.function.SerializableSupplier<W> supplier)
    Produces a TypedFieldProvider for a given type and component.
    Optional<C>
    provideComponent(Class<?> valueType)
    Produces a component for a given value.

  • Method Details

    • provideComponent

      Optional<C> provideComponent(Class<?> valueType)
      Produces a component for a given value. The returned component should be able to accept that object of the given type when its setValue() method is called.
      Parameters:
      valueType - Type of the value. Never null.
      Returns:
      Perhaps a Component. The result will be empty when this provider cannot produce a result for a given value.

    • of

      static <V, W extends com.vaadin.flow.component.Component & com.vaadin.flow.component.HasValue<?, V>> TypedFieldProvider<V,W> of(Class<V> type, com.vaadin.flow.function.SerializableSupplier<W> supplier)
      Produces a TypedFieldProvider for a given type and component.
      Type Parameters:
      V - Value type.
      W - Component type.
      Parameters:
      type - Type to accept.
      supplier - Component to produce.
      Returns:
      If asked type is a subtype of the given type returns the component, otherwise returns an empty optional.