cake-pattern | cake pattern in scala for injecting singleton | Dependency Injection library
kandi X-RAY | cake-pattern Summary
kandi X-RAY | cake-pattern Summary
The cake pattern uses features of self types and mixins in Scala to enable apparently parameter-less construction of objects.
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QUESTION
Using self-type for dependency injections, cause to expose public method of other traits ,which break the single responsibility principal. Let's me talk with example
...ANSWER
Answered 2019-Jan-06 at 16:27The self type is not really relevant here. Inheriting from another class exposes the public methods of that class regardless of any self type. So any inheritance from a class with public methods can be said to break the single responsibility principle.
If the trait
is intended to be use for dependency injection then it should make its methods protected
so that they are not exposed.
QUESTION
I have a Scala app that is using the Cake pattern:
...ANSWER
Answered 2017-Jul-12 at 16:45def repository: Repository
this is a method that returns a new stub every time you call it. Try making it a val
instead to return the same stub on every invocation/access:
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