Можно ли это считать простым итератором?

type
  Iterator<T> = class
  private 
    a, b, n: integer;
    f: boolean;
  public 
    
    function StartRead()  := a;
    function FinishRead()  := b;
    function PositionRead()  := n;
    
    
    procedure StartWrite(v: integer);
    begin
      if f then a := v;
    end;
    
    procedure FinishWrite(v: integer);
    begin
      if f then b := v;
    end;
    
    procedure PositionWrite(v: integer);
    begin
      if Abs(v - n) = 1 then n := v;
    end;
    
    ///Start value
    property Start: integer read StartRead write StartWrite;
    ///End value
    property Finish: integer read FinishRead write FinishWrite;
    ///Current value (between Start and Finish)
    property Position: integer read PositionRead write PositionWrite;
    
    constructor(s, e, n: integer);
    begin
      f := true;
      if n < s then n := s;
      if n > e then n := e;
      Start := s;Finish := e;Position := n;
      f := false;
    end;
    
    ///Get current element
    function Current(c: array of T) := c[Position];
    
    ///Get next element
    function Next(c: array of T): T;
    begin
      if Position < Finish then Position := Position + 1;
      Next := c[Position];
    end;
    
    ///Get previous element
    function Previous(c: array of T): T;
    begin
      if Position > Start then Position := Position - 1;
      Previous := c[Position];
    end;
  end;
 
const
  n = 5;
 
var
  a: array of integer;
  b: Iterator<integer>;
 
begin
  SetLength(a, n + 1);
  for var i := 0 to n do a[i] := Random(100);
  Writeln(a);
  b := new Iterator<integer>(-1, n, -1);
  for var i := 0 to n do
    Writeln(b.Next(a));
end.

if f or (Abs(n - v) = 1) then n := v;