class.ilADTGroupDefinition.php

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<?php

class ilADTGroupDefinition extends ilADTDefinition
{       
        protected $elements; // [array]
        
        public function __clone()
        {
                if(is_array($this->elements))
                {
                        foreach($this->elements as $id => $element)
                        {
                                $this->elements[$id] = clone $element;                          
                        }
                }
        }

        
        // defaults
        
        public function reset() 
        {
                parent::reset();
                
                $this->elements = array();              
        }
        
        
        // properties
        
        public function addElement($a_name, ilADTDefinition $a_def)
        {
                $this->elements[$a_name] = $a_def;
        }
        
        public function hasElement($a_name)
        {
                return array_key_exists($a_name, $this->elements);
        }
        
        public function getElement($a_name)
        {
                if($this->hasElement($a_name))
                {
                        return $this->elements[$a_name];
                }
        }
        
        public function getElements()
        {
                return $this->elements;
        }
        
        
        // comparison
                
        public function isComparableTo(ilADT $a_adt)
        {
                // has to be group-based
                return ($a_adt instanceof ilADTGroup);
        }       
}

?>