Spadavecchia / clojure-desing-patterns

Clojure Design Patterns

Functional Patterns

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State/Event Pattern

• State is derived from previous state + input
• Many diverse inputs
• Need to recover past states
• Need to visualize previous state

(defn end-state [start-state events]
  (reduce update-state start-state events))

Consequences Pattern

• Eache event an trigger multiple events
• Genereated events cause state changes
• Neet to visualize intermadiate states

(defn conequences [current-state event]
  (reduce update-state current-state
    (consequences current-state event)))