Spring 5.0 Projects

Reactive Programming techniques

Reactive Programming is event-based in most cases. In Reactive Programming, the APIs are exposed in the following two flavors:

• Callback: In this type, the anonymous routines are registered to event sources as callback functions. They will be invoked when the event is triggered by the data flow.
• Declarative: The events are observed through well-defined functional compositions, like a filter, map, and other stream-based operations, like count, trigger, and so on.

Reactive Programming puts the importance on data flow rather than the flow of control, so it is not uncommon to consider it as a data flow programming. There are various techniques that are used to achieve Reactive Programming as follows:

• Futures ...