Validation

Validation Options

1. Exceptions: Add specific domain exception for each validation error. This is the most explicit, but also the most verbose.
   1. Pros
      1. Defensive
      2. Stack Trace
      3. Easier Debugging
   2. Cons
      1. Performance
2. Result Object: Wrapper containing Error message, code, success/fail, etc
   1. Pros
      1. Expressiveness
      2. Performance
      3. Self-documenting errors
   2. Cons
      1. Verbose
      2. Need to sprinkle error handling code throughout your application
      3. Messy for Deeply nested code
      4. No stack trace