Additional Notes
When should an interface stay open instead of sealed?
Track: Java
Topic: Language Upgrades
Focus: Sealed Classes
Java: Sealed Classes
Answer
When outside modules or future integrations are expected to provide implementations.
Plugin points, vendor adapters, and other growth seams usually need to remain open. Sealing those interfaces can turn a language feature into a design constraint that blocks legitimate extension.
Plugin points, vendor adapters, and other growth seams usually need to remain open. Sealing those interfaces can turn a language feature into a design constraint that blocks legitimate extension.
Topics: Java Language Upgrades Sealed Classes