Making a copy of an object Dynamically?

问题

My application stores my web service responses into WeakHashMap. In my application I manipulate the data coming back from the web service in UI, and since the objects are being referenced it also modifies the reference (In my weak hashmap).

Is there a way to store a copy of the objects into my hashmap instead of a reference, without having to implement Clonable on every single Model object in my application?

回答1:

Kryo allows serialization with minimal effort. It's also should be very efficient as uses direct memory copying with a help of sun.misc.Unsafe. From their quick start:

Kryo kryo = new Kryo();
SomeClass someObject = ...
SomeClass copy1 = kryo.copy(someObject);
SomeClass copy2 = kryo.copyShallow(someObject);

回答2:

You can use serialization/deserialization to do that.

来源：https://stackoverflow.com/questions/20079923/making-a-copy-of-an-object-dynamically