public function __construct($id)
{
$this->identifier = $id;
}
public function signals()
{
if ($this->signals == null) {
$this->signals = new ezcSignalCollection(__CLASS__);
}
return $this->signals;
}
public function manipulate()
{
// change the data here
$this->signals()->emit("dataChanged", $this->identifier);
}
}
class Cache
{
public function deleteCache($identifier)
{
echo "Deleting cache for ID: {$identifier}\n";
}
}
$cache = new Cache();
ezcSignalStaticConnections::getInstance()->connect("DataObject", "dataChanged", array($cache, "deleteCache"));
$data1 = new DataObject(1);
$data2 = new DataObject(2);
$data1->manipulate();
$data2->manipulate();
