Contents
How to subscribe to an event channel unit in Salesforce?
Salesforce provides this tool as an example of how to subscribe to events using CometD. To contribute to the EMP Connector project with your own enhancements, submit pull requests to the repository at https://github.com/forcedotcom/EMP-Connector.
Is it easy to pass static methods as callbacks in C?
It is easy to pass static methods as callbacks because they are very similar to C functions. But static methods don’t allow access to non-static members of the class. This can be a bit of a pain. I have settled on an approach to C++ callbacks that makes them almost as simple as their C counterparts.
How are callbacks used in a function pointer?
Callback is a function that we pass to another APIs as argument while calling them. Now these APIs are expected to use our provided callback at some point. 1.) Function Pointer 2.) Function Objects / Functors 3.) Lambda functions
How are callbacks passed to the caller in C + +?
With every callback, one of the arguments is provided by the caller and passed to the callback. For C++ classes, the argument is a pointer to the object that should execute the callback. The following is an example using some simple math callbacks. //this takes a callback argument, //context needs to be provided by the caller and passed to
Which is the default loginexample class in EMP connector?
Let’s take a closer look at the components of EMP Connector. The LoginExample class logs in to production by default using the passed-in user-credential information.
What are the functions of the empconnector class?
The EmpConnector class is the main class that exposes the functionality of starting a connection and subscribing. The class contains functions to create a connection, subscribe to a channel, cancel a subscription, and stop a connection. To end a subscription, call these functions.
How does the loginexample class work in Salesforce?
The LoginExample class logs in to production by default using the passed-in user-credential information. After initial authentication, LoginExample reauthenticates the user if the authentication becomes invalid, such as when a Salesforce session is invalidated or an access token is revoked.