How to implement class adapter pattern in Java

Question

Is it possible to implement class adapter pattern in Java?

I'm trying to read everything on the internet but still have found an example.

"I'm trying to read everything on the internet " How much time do you have? — Code-Apprentice, Jun 25 '13 at 01:43
BrunoReis@ I'm a new in oop, i'm going to try it!! Thanks RongNK@ Thanks!! MonadNewb@ I'm really doing my best!!! — user2342185, Jun 25 '13 at 03:08

score 2 · Accepted Answer · answered Jun 25 '13 at 01:40

2

It is possible, but pure interfaces must be used instead of abstract classes, since Java does not support multiple inheritance.

answered Jun 25 '13 at 01:40

arshajii

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Óscar López · Answer 2 · 2013-06-25T01:54:40.217

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There are two variations of the Adapter pattern: inheritance-based (a.k.a. class Adapter) and composition-based. The inheritance variation requires the use of multiple inheritance, which doesn't exist in Java and therefore it's impossible to implement. But of course, you can do the composition-based implementation, without any problems.

edited Jun 25 '13 at 01:54

answered Jun 25 '13 at 01:41

Óscar López

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There are two types of adapters. Java code implements the Object Adapter pattern in a bunch of places, but the Class Adapter requires multiple inheritance (or at least something resembling it). – cHao Jun 25 '13 at 01:42
I'm aware. I updated my answer to reflect this. – Óscar López Jun 25 '13 at 01:44

How to implement class adapter pattern in Java

2 Answers2