Additional Notes
When do sealed types help most?
Track: Java
Topic: Language Upgrades
Focus: Sealed Classes
Java: Sealed Classes
Answer
When the valid variants are truly controlled and finite.
Sealed hierarchies are powerful for closed workflows like payment outcomes or known command results. They let the compiler help enforce exhaustive handling of the valid states the business actually owns.
Sealed hierarchies are powerful for closed workflows like payment outcomes or known command results. They let the compiler help enforce exhaustive handling of the valid states the business actually owns.
Topics: Java Language Upgrades Sealed Classes