StyleGuide - Delegate complex instantiation logic to a factory service

[mgechev]

Based on discussions:

When the instantiation of given dependency or a series of dependencies involves complex logic or configuration you can consider using a factory service.

Taking this further, an abstract class can define the interface and the basic/common operations for the dependency instantiation and/or configuration of a series of abstract objects. Concrete implementations of the factory can specify the instantiation process further in order to return instances of concrete dependencies. This is the abstract factory pattern.

// cc @johnpapa @wardbell

[mgechev]

To me it seems like a design decision not that much as a style which belongs to the guide.

What are your thoughts?

[johnpapa]

Not sure ... Ward raised this and I see the value in it. Though I agree it may not be a style thing. Let's think on this