CODEWITHSUNDEEP
springinheritancejavabeanspojo
user811433
user811433

Reputation: 4149

Is it possible to extend a pojo class in Spring?

I have a pojo which contains a set of private variables and their setters and getters. This pojo is used extensively across my application. Now, I have to support a scenario where there are multiple pojos and each pojo is a superset of the initial pojo I have. Is it possible that I can extend my original pojo so that I need not change my existing business logic. I am new to spring and I dont know if this is possible. Pojo B should contain everything in pojo A and few more things. Inside the code I will create pojo B objects through pojo A. Basically, some thing similar to inheritance, but with pojos.

Upvotes: 0

Views: 7280

Answers (1)

pap
pap

Reputation: 27614

Typically, you would either aggregate or inherit.

Inherit:

class A {
    private String name;
    public String getName() {
        return name;
    }
}

class B extends A {
}

Aggregate

public interface A {
    public String getName();
}

public class AImpl implements A {
    private String name;
    public String getName() {
        return name;
    }
}

public class BImpl implements A {
    private A wrapped;
    public BImpl(A wrapped) {
        this.wrapped = wrapped;
    }
    public String getName() {
        return wrapped.getName();
    }
}

Upvotes: 2

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