<?php
if ( !defined('ABSPATH') ) {
	die('-1');
}

if ( !class_exists('WD_ASL_Filter_Abstract') ) {
	/**
	 * Class WD_MS_Filter_Abstract
	 *
	 * An abstract for filter hook handlers.
	 *
	 * @class         WD_ASL_Filter_Abstract
	 * @version       1.0
	 * @package       AjaxSearchLite/Classes/Filters
	 * @category      Class
	 * @author        Ernest Marcinko
	 */
	abstract class WD_ASL_Filter_Abstract {

		/**
		 * Static instance storage
		 *
		 * @var self
		 */
		protected static $_instance;


		/**
		 * Get the instance
		 *
		 * All shortcode classes must be singletons!
		 */
		public static function getInstance() {}

		/**
		 * The handler
		 *
		 * This function is called by the appropriate handler
		 */
		public function handle() {}
	}
}
