使用Spring避免数据库轮询的最佳方法

I have web service for reading and updating data and using spring, spring JDBC for DB access. My controller can be accessed by many channels like desktop, mobile etc. If data is updated using desktop, then same should reflect in mobile immediately. Current approach is calling service continuously to get updated data. I feel that it is worst approach and causing DB performance issue as well.I have web service for reading and updating dat