creative way for implementing Data object with its corresponding business logic class in java

Question

I have a class that need to be serialized (for both persistentcy and client-server communication)

for simplicity's sake let's call the classes Business a BusinessData and I prefix for their Interfaces.

All the getter and setter are delegated from Business class to BusinessData class.

I thought about implementing IBusinessData interface that will contain all the getter and setters and IBusiness interface that will extend it.

I can either make Business extend BuisnessData so I will not need to implement all getter and setter delegates, or make some abstract class ForwardingBusinessData that will only delegate getter and setters.

Any of the above option I lose my hierarchy freedom, do any of you have any creative solutions for this problem...

I also reviewed DAO pattern: http://java.sun.com/blueprints/patterns/DAO.html

Answer 1

I'm not sure if I understand the actual problem, but isn't this what you're looking for?

public interface IBusiness {
    public BusinessData find(Long id);
    public void create(BusinessData data);
    public void save(BusinessData data);
    public void delete(BusinessData data);
}

It makes by the way not much sense to create interfaces for model objects.