Action (vaadin-server 8.21.0 API)

java.lang.Object
- com.vaadin.event.Action

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

ShortcutAction
```
public class Action
extends java.lang.Object
implements java.io.Serializable
```
Implements the action framework. This class contains subinterfaces for action handling and listing, and for action handler registrations and unregistration.

Since:

3.0

Author:

Vaadin Ltd.

See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static interface`	`Action.Container`	Interface implemented by all components where actions can be registered.
`static interface`	`Action.Handler`	Interface implemented by classes who wish to handle actions.
`static interface`	`Action.Listener`	An Action that implements this interface can be added to an Action.Notifier (or NotifierProxy) via the `addAction()` -method, which in many cases is easier than implementing the Action.Handler interface.
`static interface`	`Action.Notifier`	Action.Containers implementing this support an easier way of adding single Actions than the more involved Action.Handler.
`static interface`	`Action.ShortcutNotifier`

Constructor Summary

Constructors
Constructor	Description
`Action(java.lang.String caption)`	Constructs a new action with the given caption.
`Action(java.lang.String caption, Resource icon)`	Constructs a new action with the given caption string and icon.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.String`	`getCaption()`	Returns the action's caption.
`Resource`	`getIcon()`	Returns the action's icon.
`void`	`setCaption(java.lang.String caption)`	Sets the caption.
`void`	`setIcon(Resource icon)`	Sets the icon.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Action
```
public Action(java.lang.String caption)
```
    Constructs a new action with the given caption.
    
    Parameters:
    
    caption - the caption for the new action.
  - Action
```
public Action(java.lang.String caption,
              Resource icon)
```
    Constructs a new action with the given caption string and icon.
    
    Parameters:
    
    caption - the caption for the new action.
    
    icon - the icon for the new action.
- Method Detail
  - getCaption
```
public java.lang.String getCaption()
```
    Returns the action's caption.
    
    Returns:
    
    the action's caption as a String.
  - getIcon
```
public Resource getIcon()
```
    Returns the action's icon.
    
    Returns:
    
    the action's Icon.
  - setCaption
```
public void setCaption(java.lang.String caption)
```
    Sets the caption.
    
    Parameters:
    
    caption - the caption to set.
  - setIcon
```
public void setIcon(Resource icon)
```
    Sets the icon.
    
    Parameters:
    
    icon - the icon to set.