001package org.consensusj.exchange; 002 003/** 004 * Implement this interface to register with `ObservableExchangeRateProvider` for rate updates 005 * TODO: Should we replace this with RxJava? Yes! Coming soon! 006 */ 007@Deprecated 008public interface ExchangeRateObserver { 009 void onExchangeRateChange(ExchangeRateChange change); 010}