bruno 2003/10/31 04:22:37
Added: src/blocks/woody/java/org/apache/cocoon/woody/event
FormHandler.java AbstractFormHandler.java
Removed: src/blocks/woody/java/org/apache/cocoon/woody
FormHandler.java
Log:
Moved FormHandler class in event subpackage, made interface more generic
to handle all kinds of WidgetEvents, and introduced an AbstractFormHandler
class which splits the ActionEvents from the ValueChangedEvents.
Revision Changes Path
1.1
cocoon-2.1/src/blocks/woody/java/org/apache/cocoon/woody/event/FormHandler.java
Index: FormHandler.java
===================================================================
/*
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. The end-user documentation included with the redistribution, if any, must
include the following acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
4. The names "Apache Cocoon" and "Apache Software Foundation" must not be
used to endorse or promote products derived from this software without
prior written permission. For written permission, please contact
[EMAIL PROTECTED]
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This software consists of voluntary contributions made by many individuals
on behalf of the Apache Software Foundation and was originally created by
Stefano Mazzocchi <[EMAIL PROTECTED]>. For more information on the Apache
Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.cocoon.woody.event;
/**
* A FormHandler can be registered with a [EMAIL PROTECTED]
org.apache.cocoon.woody.formmodel.Form Form},
* and will then receive all events fired by widgets on the form.
*
* <p>It provides an alternative way of handling events, instead of
specifying the eventhandlers
* in the form definition.
*
* <p>It is useful when you want to write your event-handling code in Java,
have all events
* handled by one class (which could of course again delegate to other
classes), and when
* you want the event handler to have access to objects it would not be able
to get access
* to if they were part of the form definition.
*/
public interface FormHandler {
public void handleEvent(WidgetEvent widgetEvent);
}
1.1
cocoon-2.1/src/blocks/woody/java/org/apache/cocoon/woody/event/AbstractFormHandler.java
Index: AbstractFormHandler.java
===================================================================
package org.apache.cocoon.woody.event;
/**
* Abstract implementation of [EMAIL PROTECTED] FormHandler}, which checks
the type
* of the WidgetEvent and calls the more specific [EMAIL PROTECTED]
#handleActionEvent}
* or [EMAIL PROTECTED] #handleValueChangedEvent} methods.
*/
public abstract class AbstractFormHandler implements FormHandler {
public void handleEvent(WidgetEvent widgetEvent) {
if (widgetEvent instanceof ActionEvent)
handleActionEvent((ActionEvent)widgetEvent);
else if (widgetEvent instanceof ValueChangedEvent)
handleValueChangedEvent((ValueChangedEvent)widgetEvent);
}
/**
* Called when an ActionEvent occured.
*/
public abstract void handleActionEvent(ActionEvent actionEvent);
/**
* Called when an ValueChangedEvent occured.
*/
public abstract void handleValueChangedEvent(ValueChangedEvent
valueChangedEvent);
}
