You are tasked with developing a Spring Boot application where different validation rules need to be applied depending on the state of the object. How would you design the validation logic to accommodate this requirement?

To accommodate different validation rules based on the state of the object in a Spring Boot application, it's a good practice to create separate validation classes for each state. This approach keeps the code modular and allows you to apply specific validation logic based on the object's state. The other options may not be as flexible or maintainable for this requirement.