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Asked: 2026-06-17T13:34:25+00:00

I’m using an API providing access to a special server environment. This API has

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I’m using an API providing access to a special server environment. This API has a wide range of Data objects you can retrieve from it. For Example APICar

Now I’d like to have “my own” data object (MyCar) containing all information of that data object but i’d like to either leave out some properties, augment it, or simply rename some of them.

This is because i need those data objects in a JSON driven client application. So when someone changes the API mentioned above and changes names of properties my client application will break immediatly.

My question is:

Is there a best practice or a design pattern to copy objects like this? Like when you have one Object and want to transfer it into another object of another class? I’ve seen something like that in eclipse called “AdapterFactory” and was wondering if it’s wide used thing.

To make it more clear: I have ObjectA and i need ObjectB. ObjectA comes from the API and its class can change frequently. I need a method or an Object or a Class somewhere which is capable of turning an ObjectA into ObjectB.

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1 Answer

  1. Editorial Team

    I think you are looking for Design Pattern Adapter

    It’s really just wrapping an instance of class A in an instance of class B, to provide a different way of using it / different type.

    “I think” because you mention copying issues, so it may not be as much a class/type thing as a persistence / transmission thing.

    Depending on your situation you may also be interested in dynamic proxying, but that’s a Java feature.

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