<?php 
	/**
	 * @author NHN (developers@xpressengine.com)
	 * @package /classes/db/queryparts/limit
	 * @version 0.1
	 */
	class Limit {
		/**
		 * start number
		 * @var int
		 */
		var $start;
		/**
		 * list count
		 * @var int
		 */
		var $list_count;
		/**
		 * page count
		 * @var int
		 */
		var $page_count;
		/**
		 * current page
		 * @var int
		 */
		var $page;

		/**
		 * constructor
		 * @param int $list_count
		 * @param int $page
		 * @param int $page_count
		 * @return void
		 */
		function Limit($list_count, $page= NULL, $page_count= NULL){
			$this->list_count = $list_count;
			if ($page){
				$list_count_value = $list_count->getValue();
				$page_value = $page->getValue();
				$this->start = ($page_value - 1) * $list_count_value;
				$this->page_count = $page_count;
				$this->page = $page;
			}			
		}
		
		/**
		 * In case you choose to use query limit in other cases than page select
		 * @return boolean
		 */
		function isPageHandler(){
			if ($this->page)return true;
			else return false;
		}
		
		function getOffset(){
			return $this->start;
		}
		
		function getLimit(){
			return $this->list_count->getValue();
		}
		
		function toString(){
			if ($this->page) return $this->start . ' , ' . $this->list_count->getValue();
			else return $this->list_count->getValue();
		}
	}
?>