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Question on Proxy Design Pattern

phv 4 роки тому • оновлено anonymous 4 роки тому • 1

Hi, regarding to Proxy design pattern. why do we need to create interface in proxy pattern instead of let  the client communication with proxy itself?

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Alexander Shvets 4 роки тому

Hi!

Thanks for the question!


The Client should be able to deal with the Proxy and the Service directly. Proxy and Service should be interchangeable within the Client. For this to happen in most programming languages, the Proxy and Service classes should have some kind of common interface, be that the actual interface, or a common base class.

Please let me know if you have further questions.

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Відповідь надано
Alexander Shvets 4 роки тому

Hi!

Thanks for the question!


The Client should be able to deal with the Proxy and the Service directly. Proxy and Service should be interchangeable within the Client. For this to happen in most programming languages, the Proxy and Service classes should have some kind of common interface, be that the actual interface, or a common base class.

Please let me know if you have further questions.

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