public final boolean isVertical(){
  final Split parent=getParent();
  return parent != null && parent.isRowLayout();
}

public final boolean isVertical ( ) { final Split parent = getParent ( ) ; return parent != null && parent . isRowLayout ( ) ; }
convenience method , returns true if the divider ' s parent is a split row ( a split with isrowlayout ( ) true ) , false otherwise . in other words if this divider ' s major axis is vertical , return true .
