<?php

class StaticCatalogManager extends CatalogManager {
	
	private $catalog;
	
	
	public function __construct(array $copy) {
		
		$this->catalog = $copy;
		
	}
	
	protected function retrieveCatalog($index){
	
		if(array_key_exists($index,$this->catalog))
			return $this->catalog[$index];
		else
			return null;
	
	}

}

?>