gyro/core/lib/interfaces/ihierarchic.cls.php

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00001 <?php
00002 /**
00003  * Interface for things that are part of a hierarhic (parent => child) relationship
00004  * 
00005  * @author Gerd Riesselmann
00006  * @ingroup Interfaces
00007  */
00008 interface IHierarchic {         
00009         /**
00010          * Get parent for this item 
00011          * 
00012          * @return IHierarchic Parent item or null
00013          */
00014         public function get_parent();
00015         
00016         /**
00017          * Get childs for this item 
00018          * 
00019          * @return array Array of IHierarchic items
00020          */
00021         public function get_childs();
00022 }