The Force.com Streaming API delivers notifications to your program when records in the Force.com database are created or modified. This can be useful for user interfaces that have a real-time data requirement or to keep an external database in sync with Force.com. Streaming API is a scalable alternative to polling Force.com for changes or writing triggers with callouts.
This section provides an introduction to Force.com Streaming API in two parts, described here:
1. Overview—Learn the key concepts involved in the Streaming API.
2. Getting started with Force.com Streaming API—Construct a working example that uses the Streaming API within a Visualforce page.
For more information about the Streaming ...