Is it possible to apply restrictions to several methods in C#

Question

I have a script as follow :

Int MethodOne (int param) {
    If (param > 5) {
        Return 0;
    }
    Return param;
}

Int MethodTwo (int param) {
    If (param > 5) {
        Return 0;
    }
    Return param * anotherVariable;
}

Is it possible to apply the conditional 'method should not execute if param > 5' to all my methods without rewriting it inside every method?

Answer 1

One way is not to pass an int (see primitive obsession)

public class NotMoreThanFive 
{
  public int Value {get; private set;}
  public NotMoreThanFive(int value) 
  {
    Value = value > 5 ? 0 : value;
  }
}

now

Int MethodOne (NotMoreThanFive param) {
    Return param.Value;
}

Int MethodTwo (NotMoreThanFive param) {
    Return param.Value * anotherVariable;
}