public function addLinkObject($key, LinkObject $linkObject) {
		$this->ensureLinksObject();
		$this->links->addLinkObject($key, $linkObject);
	}
public function addLinkObject($key, LinkObject $linkObject) {
		$this->ensureLinksObject();
		$this->links->addLinkObject($key, $linkObject);
	}
public function addLinkObject ( $ key , LinkObject $ linkObject ) { $ this -> ensureLinksObject ( ) ; $ this -> links -> addLinkObject ( $ key , $ linkObject ) ; }
set a key containing a LinkObject

@param string     $key
@param LinkObject $linkObject
set a key containing a LinkObject