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Under Construction
This proposal is under construction and is not ready for review.

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Zend Framework: Zend_Notification Component Proposal

Proposed Component Name Zend_Notification
Developer Notes
Proposers Jurriën Stutterheim
Revision 1.0 - 29 December 2007: Setting up first draft (wiki revision: 5)

Table of Contents

1. Overview

Zend_Notification is a component based on Apple's NSNotification idea.
It's an observer pattern implementation for system wide event notification.
For a detailed explanation, please see the documentation in the references section.

2. References

3. Component Requirements, Constraints, and Acceptance Criteria

  • This section will be updated in the near future

4. Dependencies on Other Framework Components

  • Zend_Exception

5. Theory of Operation

The component is instantiated with a mind-link that ...

6. Milestones / Tasks

  • Milestone 1: finish this proposal
  • Milestone 2: collect and process comments
  • Milestone 3: write documentation
  • Milestone 4: write unit tests
  • Milestone 5: get approval and move the component to incubator
  • Milestone 6: finish component and move it to core

7. Class Index

  • Zend_Notification
  • Zend_Notification_Center
  • Zend_Notification_Observer_Interface
  • Zend_Notification_Exception

8. Use Cases


class CoffeeShop_Customer implements Zend_Notification_Observer_Interface
public function __construct()

Unknown macro: { $notificationCenter = Zend_Notification_Center}

public function notify(Zend_Notification $notification)
$userInfo = $notification->getUserInfo();
$sender = $notification->getObject();

switch ($notification->getName())

Unknown macro: { case 'pieIsReady'; $pie = $userInfo['pie']; $pie->eat(); break; case 'coffeeIsReady'}

if ($sender instanceof CoffeeShop)

Unknown macro: { $sender->recommendToFriends(); }


class CoffeeShop
protected $_notificationCenter;

public function __construct()

Unknown macro: { $this->_notificationCenter = Zend_Notification_Center}

public function bakePie()
$pie = new Pie();

while (!$pie->isDone())

Unknown macro: { $pie->bake(); }

$this->_notificationCenter->postNotification('pieIsReady', $this, array('pie' => $pie));

public function makeCoffee()

Unknown macro: { $coffee = new Coffee(); $this->_notificationCenter->postNotification('coffeeIsReady', $this, array('coffee' => $coffee)); }


9. Class Skeletons


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