A connection to the Cloud Pub/Sub service to receive events.
This interface defines pure-virtual functions for each of the user-facing overload sets in Subscriber. That is, all of Subscriber's overloads will forward to the one pure-virtual function declared in this interface. This allows users to inject custom behavior (e.g., with a Google Mock object) in a Subscriber object for use in their own tests.
To create a concrete instance that connects you to the real Cloud Pub/Sub service, see MakeSubscriberConnection().
The *Params nested classes
Applications may define classes derived from SubscriberConnection, for example, because they want to mock the class. To avoid breaking all such derived classes when we change the number or type of the arguments to the member functions we define lightweight structures to pass the arguments.
Functions
virtual Subscribe(SubscribeParams)
Defines the interface for Subscriber::Subscribe(ApplicationCallback)
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-14 UTC."],[[["The page documents the `SubscriberConnection` class in the Google Cloud Pub/Sub C++ library, outlining its role as an interface for connecting to the Cloud Pub/Sub service to receive events."],["Version history of the `SubscriberConnection` class is provided, listing the latest version (2.37.0-rc) along with numerous older versions dating back to 2.11.0."],["The `SubscriberConnection` class includes virtual functions such as `Subscribe`, `ExactlyOnceSubscribe`, and `Pull`, which define interfaces for receiving events and interacting with the Pub/Sub service."],["Users can derive custom classes from `SubscriberConnection` to implement mock objects for testing or to extend its behavior, with `Params` nested classes used to pass arguments to its member functions."],["`MakeSubscriberConnection()` is the function to create a concrete instance to connect to the real Cloud Pub/Sub service, as it is a necessary step for users."]]],[]]
