How to implement Builder pattern in Kotlin?

Question

Hi I am a newbie in the Kotlin world. I like what I see so far and started to think to convert some of our libraries we use in our application from Java to Kotlin.

T

Answer 1

For a simple class you don't need a separate builder. You can make use of optional constructor arguments as Kirill Rakhman described.

If you have more complex class then Kotlin provides a way to create Groovy style Builders/DSL:

Type-Safe Builders

Here is an example:

Github Example - Builder / Assembler