How to serialize and deserialize interfaces?

Question

Java

There is a class whose instance needs to be serialized and then deserialized accordingly, which has interface fields, which in the process of program operation can be different instances of anonymous classes that implement these interfaces. Now the question is how can these instances be serialized, so that during deserialization, all anonymous classes are restored. That is, the problem lies in the correct storage of actions in interfaces.
It is possible, in principle, for each interface to have a measurable name field containing information about an anonymous class, and then create an instance of such a class by name, but then there will be too many name options. And when deserializing, you have to consider many possible outcomes.
What should I do? How to do it right?

Answer 1

www.javatpoint.com/serialization-in-java

Answer 2

If the variables represent inheritors of one common type (interface), then in the case of json, you need to annotate it with the @JsonSubTypes annotation, in which you need to list all the inheritors. When you get a deserialized object, simply check whether it belongs to the required type (class) through instanceof and cast the object to this class. Here is a simple example (too lazy to write it myself :)): https://nickebbitt.wordpress.com/2014/01/31/handli...
PS: There is an error in the example - the abstract Animal class must implement Serializable

Answer 3

If you use Jackson, then look here and here .