Modeling Immutable Data with Java Records and Sealed Classes
This tutorial covers Java Records and Sealed Classes by building a trading platform event-sourcing pipeline where order events (OrderPlaced, OrderFilled, OrderCancelled) must be immutable and exhaustively handled. It covers record declarations, compact constructors for validation, sealed interfaces with permits clauses, and switch expressions with pattern matching that the compiler enforces are exhaustive over the closed type hierarchy.
Комментарии