Additional Notes
How can method validation prevent invalid states in Java objects?
Track: Java
Topic: OOP
Focus: Invariants and Validation
Java: Invariants and Validation
Answer
Method validation checks data before modifying the object's state.
Method validation involves checking inputs before they alter the object's state, protecting against invalid data. In an e-commerce system, a method for updating product stock should verify that the new stock level is non-negative before applying it. This prevents the product from entering an invalid state with negative stock.
Method validation involves checking inputs before they alter the object's state, protecting against invalid data. In an e-commerce system, a method for updating product stock should verify that the new stock level is non-negative before applying it. This prevents the product from entering an invalid state with negative stock.
Topics: Invariants and Validation Java OOP