ccostel
ccostel

Reputation: 117

C++ Builder Pattern Based on Configuration

I found this useful gist that introduced me into Builder Pattern Design.

How would one implement this code to build a "Car" object with required and optional parameters based on configurations without writing dedicated builders?

Scenario 1

Build a car with 3 wheels, no body and no engine.

Scenario 2

Build a car with 2 wheels, with a body and an engine.

Scenario 3

Build a car with 1 wheel, no body and no engine.

Scenrion N Some other random combination.

And let's imagine the "Car" object requires at least one wheel to be built.

I have stumbled upon a blog post that mentions a state machine approach but it still seems a bit messy to me.

The post: https://blog.jayway.com/2012/02/07/builder-pattern-with-a-twist/

Upvotes: 0

Views: 426

Answers (1)

dstar55
dstar55

Reputation: 954

what about following:
inject Configuration Context as an argument into method getCar() in class Director then build appropriate Car object there

comments in gist are self explanatory:
/* Builder is responsible for constructing the smaller parts /
/
Director is responsible for the whole process */

Upvotes: 1

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