9 if (is_array($this->elements)) {
10 foreach ($this->elements as $id => $element) {
11 $this->elements[$id] = clone $element;
23 $this->elements = array();
31 $this->elements[$a_name] = $a_def;
36 return array_key_exists($a_name, $this->elements);
42 return $this->elements[$a_name];
isComparableTo(ilADT $a_adt)
addElement($a_name, ilADTDefinition $a_def)
ADT definition base class.