com.holonplatform.vaadin.flow.components

Interface ValueHolder.ValueChangeEvent<V>

Type Parameters:

V - Value type

All Superinterfaces:

Serializable

All Known Subinterfaces:

GroupValueChangeEvent<V,P,C,G>

Enclosing interface:

ValueHolder<V,E extends ValueHolder.ValueChangeEvent<V>>

public static interface ValueHolder.ValueChangeEvent<V>
extends Serializable

A ValueHolder.ValueChangeListener event.

Method Summary

Modifier and Type	Method and Description
static <T> ValueHolder.ValueChangeEvent<T>	create(ValueHolder<T,?> source, T oldValue, T value, boolean userOriginated) Create a new ValueHolder.ValueChangeEvent.
V	getOldValue() Returns the value of the source before this value change event occurred.
ValueHolder<V,?>	getSource() Get the source of this value change event.
V	getValue() Returns the new value that triggered this value change event.
boolean	isUserOriginated() Returns whether this event was triggered by user interaction, on the client side, or programmatically, on the server side.

Method Detail

isUserOriginated

boolean isUserOriginated()

Returns whether this event was triggered by user interaction, on the client side, or programmatically, on the server side.

Returns:

true if this event originates from the client, false otherwise.

getSource

ValueHolder<V,?> getSource()

Get the source of this value change event.

Returns:

the ValueHolder type source

getOldValue

V getOldValue()

Returns the value of the source before this value change event occurred.

Returns:

the old value

getValue

V getValue()

Returns the new value that triggered this value change event.

Returns:

the new value

create

static <T> ValueHolder.ValueChangeEvent<T> create(ValueHolder<T,?> source,
                                                  T oldValue,
                                                  T value,
                                                  boolean userOriginated)

Create a new ValueHolder.ValueChangeEvent.

Type Parameters:

T - Value type

Parameters:

source - Source (not null)

oldValue - Old value

value - New value

userOriginated - Whether is a client-side (user originated) change event or server side

Returns:

A new ValueHolder.ValueChangeEvent instance