Salesforce Event Subscription

We are planning to integrate Salesforce REST. So, are there any event handler in salesforce. 

My requirement is, when ever there is a data change happened on the salesforce, we need triggers to save on our local database. 

Something like pub-sub.

Please, let we know, how we can implemented this

Hi Kalyan,

Since this is an OutSystems forum, not a Salesforce one, is this a question how to receive the Salesforce triggers, or is it a question how to make Salesforce send the triggers? Because if it's the latter, this really isn't the place for it.