- * Called when we need to update the current term either because we received
- * a message from someone with a more uptodate term or because we just voted
- * for someone
+ * To be called mainly when we are recovering in-memory election state from
+ * persistent storage
+ *
+ * @param currentTerm
+ * @param votedFor
+ */
+ void update(long currentTerm, String votedFor);
+
+ /**
+ * To be called when we need to update the current term either because we
+ * received a message from someone with a more up-to-date term or because we
+ * just voted for someone
+ * <p>
+ * This information needs to be persisted so that on recovery the replica
+ * can start itself in the right term and know if it has already voted in
+ * that term or not