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Protocol Example
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| (defprotocol UserStore | |
| (load [_ id]) | |
| (save! [_ id user]) | |
| (delete! [_ id])) | |
| (defrecord Database [db] | |
| UserStore | |
| (load [_ id] | |
| (first (jdbc/query db ["select * from users where id = ?" id]))) | |
| ...) | |
| (defn build-memory-user-store | |
| [] | |
| (let [state (atom {})] | |
| (reify UserStore | |
| (load [_ id] (get @state id)) | |
| ...))) |
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