public function swapNode( $nodeID, $selectedNodeID, $nodeIdList = array() )
    {
        $contentObject1 = eZContentObject::fetchByNodeID( $nodeID );
        $contentObject2 = eZContentObject::fetchByNodeID( $selectedNodeID );

        eZContentOperationCollection::registerSearchObject( $contentObject1->attribute( 'id' ) );
        eZContentOperationCollection::registerSearchObject( $contentObject2->attribute( 'id' ) );
    }