Abstract observer class to implement the observer design pattern

• deprecated: 12.3 (Platform) & 4.0 (CMS)
• abstract:
• since: 11.1

Located in /libraries/legacy/base/observer.php (line 21)

JObject
   |
   --JObserver

object $_subject = null (line 30)

Event object to observe.

• deprecated: 12.3
• since: 11.1
• access: protected

Inherited Variables

Inherited from JObject

JObject::$_errors

Constructor __construct (line 40)

Constructor

• deprecated: 12.3
• since: 11.1
• access: public

JObserver __construct (object &$subject)

• object &$subject: The object to observe.

---

Redefinition of:

JObject::__construct()

Class constructor, overridden in descendant classes.

update (line 59)

Method to update the state of observable objects

• deprecated: 12.3
• abstract:
• since: 11.1
• access: public

mixed update (array &$args)

• array &$args: An array of arguments to pass to the listener.

Inherited Methods

Inherited From JObject

JObject::__construct()
JObject::def()
JObject::get()
JObject::getError()
JObject::getErrors()
JObject::getProperties()
JObject::set()
JObject::setError()
JObject::setProperties()
JObject::__toString()