动态地创建对象的副本？ [英] Making a copy of an object Dynamically?

问题描述

我的应用程序将我的Web服务响应存储到WeakHashMap中。
在我的应用程序中，我操作从UI中的Web服务返回的数据，并且由于对象被引用，它还修改引用（在我的弱hashmap）。

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).

有没有办法将对象的副本存储到我的hashmap而不是引用，而不必在我的应用程序中的每个单独的Model对象上实现Clonable？

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?

推荐答案

Kryo 允许以最小的努力进行序列化。它也应该非常有效，因为使用直接内存复制帮助 sun.misc.Unsafe 。从他们的快速开始：

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);

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