null if no is filter is set.
* @return LoggerFilter
*/
abstract function getFilter();
/**
* Release any resources allocated.
* Subclasses of {@link LoggerAppender} should implement
* this method to perform proper closing procedures.
* @abstract
*/
abstract public function close();
/**
* This method performs threshold checks and invokes filters before
* delegating actual logging to the subclasses specific append() method.
* @param LoggerLoggingEvent $event
* @abstract
*/
abstract public function doAppend($event);
/**
* Get the name of this appender.
* @return string
*/
abstract public function getName();
/**
* Do not use this method.
*
* @param object $errorHandler
*/
abstract public function setErrorHandler($errorHandler);
/**
* Do not use this method.
* @return object Returns the ErrorHandler for this appender.
*/
abstract public function getErrorHandler();
/**
* Set the Layout for this appender.
*
* @param LoggerLayout $layout
*/
abstract public function setLayout($layout);
/**
* Returns this appender layout.
* @return LoggerLayout
*/
abstract public function getLayout();
/**
* Set the name of this appender.
*
* The name is used by other components to identify this appender.
*
* @param string $name
*/
abstract public function setName($name);
/**
* Configurators call this method to determine if the appender
* requires a layout.
*
* If this method returns true, meaning that layout is required,
* then the configurator will configure a layout using the configuration
* information at its disposal. If this method returns false,
* meaning that a layout is not required, then layout configuration will be
* skipped even if there is available layout configuration
* information at the disposal of the configurator.
*
* In the rather exceptional case, where the appender
* implementation admits a layout but can also work without it, then
* the appender should return true.
*
* @return boolean
*/
abstract public function requiresLayout();
}