Package org.vaadin.miki.events.state

Class StateChangeEvent<S extends Serializable,C extends com.vaadin.flow.component.Component & HasState<S>>

java.lang.Object

java.util.EventObject

com.vaadin.flow.component.ComponentEvent<C>

org.vaadin.miki.events.state.StateChangeEvent<S,C>

Type Parameters:

C - Source component.

S - Information about the state.

All Implemented Interfaces:

Serializable

public class StateChangeEvent<S extends Serializable,C extends com.vaadin.flow.component.Component & HasState<S>>
extends com.vaadin.flow.component.ComponentEvent<C>

Event associated with the change of component's state. Somewhat similar to value change.

Since:

2020-07-08

Author:

miki

See Also:

• Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor	Description
StateChangeEvent(C source, boolean fromClient, S state)	Creates a new event using the given source and indicator whether the event originated from the client side or the server side.

Method Summary

Modifier and Type	Method	Description
S	getState()	Returns current state of the source component.

Methods inherited from class com.vaadin.flow.component.ComponentEvent

getSource, isFromClient, unregisterListener

Methods inherited from class java.util.EventObject

toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

StateChangeEvent

public StateChangeEvent(C source,
 boolean fromClient,
 S state)

Creates a new event using the given source and indicator whether the event originated from the client side or the server side.

Parameters:

source - the source component

fromClient - true if the event originated from the client

state - Current state of the component.

Method Details

getState

public S getState()

Returns current state of the source component. Modifying the returned object may affect the source component, but it is not required nor enforced.

Returns:

Component state. May never be null.