Question

I have a base class vehicle and some children classes like car, motorbike etc.. inheriting from vehicle. In each children class there is a function Go(); now I want to log information on every vehicle when the function Go() fires, and on that log I want to know which kind of vehicle did it.

Example:

public class vehicle  {       public void Go()       {            Log('vehicle X fired');       } } public class car : vehicle {        public void Go() : base()        {            // do something        } } 

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How can I know in the function Log that car called me during the base()? Thanks,

Omri

Answer 1

Calling GetType() from Vehicle.Go() would work – but only if Go() was actually called.

One way of enforcing this is to use the template method pattern:

public abstract class Vehicle  {     public void Go()     {         Log('vehicle {0} fired', GetType().Name);         GoImpl();     }      protected abstract void GoImpl(); }  public class Car : Vehicle {     protected override void GoImpl()     {         // do something     } }