Package com.vaadin.ui

Class Component.Event

java.lang.Object

java.util.EventObject

com.vaadin.event.ConnectorEvent

com.vaadin.ui.Component.Event

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

AbstractSplitPanel.SplitPositionChangeEvent, Button.ClickEvent, CollapseEvent, Component.ErrorEvent, DragEndEvent, DragStartEvent, DropEvent, ExpandEvent, FieldEvents.BlurEvent, FieldEvents.FocusEvent, FileDropEvent, Grid.ColumnReorderEvent, Grid.ColumnResizeEvent, Grid.ColumnVisibilityChangeEvent, HasComponents.ComponentAttachEvent, HasComponents.ComponentDetachEvent, LoginForm.LoginEvent, MouseEvents.ClickEvent, MouseEvents.DoubleClickEvent, PopupView.PopupVisibilityEvent, SortEvent, TabSheet.SelectedTabChangeEvent, UI.WindowOrderUpdateEvent, UIEvents.PollEvent, Upload.ChangeEvent, Upload.FinishedEvent, Upload.StartedEvent, Window.CloseEvent, Window.ResizeEvent, Window.WindowModeChangeEvent, Window.WindowOrderChangeEvent

Enclosing interface:

Component

public static class Component.Event
extends ConnectorEvent

Superclass of all component originated events.

Events are the basis of all user interaction handling in Vaadin. To handle events, you provide a listener object that receives the events of the particular event type.

 Button button = new Button("Click Me!");
 button.addListener(new Button.ClickListener() {
     public void buttonClick(ClickEvent event) {
         getWindow().showNotification("Thank You!");
     }
 });
 layout.addComponent(button);
 

Notice that while each of the event types have their corresponding listener types; the listener interfaces are not required to inherit the Component.Listener interface.

See Also:

Component.Listener, Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor	Description
Event(Component source)	Constructs a new event with the specified source component.

Method Summary

Modifier and Type	Method	Description
Component	getComponent()	Gets the component where the event occurred.

Methods inherited from class com.vaadin.event.ConnectorEvent

getConnector

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Event

public Event(Component source)

Constructs a new event with the specified source component.

Parameters:

source - the source component of the event

Method Detail

getComponent

public Component getComponent()

Gets the component where the event occurred.

Returns:

the source component of the event