ActionSource

All Known Subinterfaces:

ActionSource2

All Known Implementing Classes:

HtmlCommandButton, HtmlCommandLink, HtmlCommandScript, UICommand, UIViewAction
```
public interface ActionSource
```
ActionSource is an interface that may be implemented by any concrete UIComponent that wishes to be a source of ActionEvents, including the ability to invoke application actions via the default ActionListener mechanism.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`addActionListener(ActionListener listener)` Add a new `ActionListener` to the set of listeners interested in being notified when `ActionEvent`s occur.
`ActionListener[]`	`getActionListeners()` Return the set of registered `ActionListener`s for this `ActionSource` instance.
`boolean`	`isImmediate()` Return a flag indicating that the default `ActionListener` provided by the Jakarta Faces implementation should be executed immediately (that is, during Apply Request Values phase of the request processing lifecycle), rather than waiting until the Invoke Application phase.
`void`	`removeActionListener(ActionListener listener)` Remove an existing `ActionListener` (if any) from the set of listeners interested in being notified when `ActionEvent`s occur.
`void`	`setImmediate(boolean immediate)` Set the "immediate execution" flag for this `UIComponent`.

- Method Detail
  - isImmediate
```
boolean isImmediate()
```
    Return a flag indicating that the default ActionListener provided by the Jakarta Faces implementation should be executed immediately (that is, during Apply Request Values phase of the request processing lifecycle), rather than waiting until the Invoke Application phase. The default value for this property must be false.
    
    Returns:
    
    true if immediate, false otherwise.
  - setImmediate
```
void setImmediate(boolean immediate)
```
    Set the "immediate execution" flag for this UIComponent.
    
    Parameters:
    
    immediate - The new immediate execution flag
  - addActionListener
```
void addActionListener(ActionListener listener)
```
    Add a new ActionListener to the set of listeners interested in being notified when ActionEvents occur.
    
    Parameters:
    
    listener - The ActionListener to be added
    
    Throws:
    
    java.lang.NullPointerException - if listener is null
  - getActionListeners
```
ActionListener[] getActionListeners()
```
    Return the set of registered ActionListeners for this ActionSource instance. If there are no registered listeners, a zero-length array is returned.
    
    Returns:
    
    the action listeners, or a zero-length array.
  - removeActionListener
```
void removeActionListener(ActionListener listener)
```
    Remove an existing ActionListener (if any) from the set of listeners interested in being notified when ActionEvents occur.
    
    Parameters:
    
    listener - The ActionListener to be removed
    
    Throws:
    
    java.lang.NullPointerException - if listener is null

Interface ActionSource

Method Summary

Method Detail

isImmediate

setImmediate

addActionListener

getActionListeners

removeActionListener