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Start your free trialJonathan Healy
21,601 PointsCan someone explain why we construct the RepositoryInterface in the Collection class opposed to implementing it?
I am unclear on the purpose of introducing the Repository Interface, and it's purpose there, inside of the constructor function of the Collection class.
Does this serve a different purpose as opposed to implementing it as we are with the Iterator and Countable interface?
1 Answer
Shoko Ishigaki
21,826 PointsIn collection class, we have property called repo which is type "RepositoryInterface" (or class implementing RepositoryInterface). Inside constructor, we initialise the repo and then use that repo's function. Hope this helps.
Jonathan Healy
21,601 PointsJonathan Healy
21,601 PointsThat makes sense thank you for your assistance!