net.sf.click
Class ControlRegistry

java.lang.Object
  net.sf.click.ControlRegistry

public class ControlRegistry

extends Object

Provides a thread local register for ActionListener events. The ClickServlet will fire any ActionListeners registered after processing all the page's controls.

Example Usage

Developers who implement their own controls, should look at the following example control onProcess implementation.

 public class MyLink extends AbstractControl {
     ...

     public boolean onProcess() {
         bindRequestValue();

         if (isClicked()) {
             // Register this controls listener for invocation after
             // control processing has finished
             registerActionEvent();
         }

         return true;
     }
 } 

In this example if the link is clicked, it then calls AbstractControl.registerActionEvent(). This method registers the Control's action listener with ControlRegistry. The ClickServlet will subsequently invoke the registered ActionListener.onAction(Control) methods after all the Page's control onProcess() methods have been invoked.

Author:

Bob Schellink, Malcolm Edgar

Constructor Summary

ControlRegistry()

Method Summary

static void

registerActionEvent(Control source, ActionListener listener) Register the event source and event ActionListener to be fired by the ClickServlet once all the controls have been processed.

Methods inherited from class java.lang.Object

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

Constructor Detail

ControlRegistry

public ControlRegistry()

Method Detail

registerActionEvent

public static void registerActionEvent(Control source,
                                       ActionListener listener)

Register the event source and event ActionListener to be fired by the ClickServlet once all the controls have been processed.

Parameters:

source - the action event source

listener - the event action listener