compute the total number of nodes in the tree concode_field_sep Root root concode_elem_sep double minExtent concode_field_sep Interval ensureExtent concode_elem_sep Iterator iterator concode_elem_sep int depth concode_elem_sep int size concode_elem_sep void collectStats concode_elem_sep List query concode_elem_sep List query concode_elem_sep void query concode_elem_sep void insert concode_elem_sep boolean remove
int function ( ) { if ( root != null ) return root . nodeSize ( ) ; return 0 ; }