Spring MVC - should my domain classes implement Serializable for over-the-wire transfer?

Question

I\'m trying to learn Spring Boot by implementing a simple REST API.

My understanding was that if I need to transfer an object over the wire, that object should impl

Answer 1

There are many ways to serialize an object. Java's object serialization is just one of them. From the official documentation:

To serialize an object means to convert its state to a byte stream

REST APIs usually send and receive JSON or XML. In that case serializing an object means converting its state to a String.

There is no direct connection between "sending an object over the wire" and implementing Serializable. The technologies you use dictate whether or not Serializable has to be implemented.