java traits or mixins pattern?

java mixins traits
joshjdevl picture joshjdevl · Nov 4, 2008 · Viewed 16.8k times · Source

Is there a way to emulate mixins or traits in java? basically, I need a way to do multiple inheritance so I can add common business logic to several classes

Answer

sblundy picture sblundy · Nov 4, 2008

Not the way you want to do it. Effective Java recommends that you "Favor composition over inheritance". Meaning you move the common logic to other classes and delegate. This is how you get around the lack of multiple inheritance in java.

Related questions

Implement Mixin In Java?

Using Java 6, how can I implement a mixin? It is very easy and possible in Ruby. How can I get similar in Java?

Read More
How can I get a Jackson mixin to work with private fields?

I was experimenting with Jackson 2.0 mixins to serialize a class with no annotations. Simplified source code below. Note that I'm not using getters/setters, but it seemed like I should still be able to use mixins according to the documentation. …

Read More
How do I convert a String to an int in Java?

How can I convert a String to an int in Java? My String contains only numbers, and I want to return the number it represents. For example, given the string "1234" the result should be the number 1234.

Read More