Package com.vaadin.flow.data.provider

Class DataChangeEvent<T>

java.lang.Object

java.util.EventObject

com.vaadin.flow.data.provider.DataChangeEvent<T>

Type Parameters:

T - the data type

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

DataChangeEvent.DataRefreshEvent

public class DataChangeEvent<T>
extends EventObject

An event fired when the data of a DataProvider changes.

Since:

1.0

Author:

Vaadin Ltd

See Also:

• DataProviderListener
• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DataChangeEvent.DataRefreshEvent<T>	An event fired when a single item of a DataProvider has been updated.

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor	Description
DataChangeEvent(DataProvider<T,?> source)	Creates a new DataChangeEvent event originating from the given data provider.

Method Summary

Modifier and Type	Method	Description
DataProvider<T,?>	getSource()
void	unregisterListener()	Unregisters the event listener currently being invoked.

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

DataChangeEvent

public DataChangeEvent(DataProvider<T,?> source)

Creates a new DataChangeEvent event originating from the given data provider.

Parameters:

source - the data provider, not null

Method Details

getSource

public DataProvider<T,?> getSource()

Overrides:

getSource in class EventObject

unregisterListener

public void unregisterListener()
                        throws IllegalStateException

Unregisters the event listener currently being invoked.

This method can only be called from within an event listener otherwise it throws an IllegalStateException. Calling it will remove the current event listener so no further events are passed to it.

Throws:

IllegalStateException - if the method is called outside of the event listener.