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 2025-04-17 UTC."],[[["This document details the `SubscriberConnection` class, which serves as an interface for connecting to the Cloud Pub/Sub service to receive events, allowing for custom behaviors and mocking during testing."],["The `SubscriberConnection` class defines pure-virtual functions that correspond to the overloads found in the `Subscriber` class, ensuring consistency across the interface."],["The document outlines multiple versions of `SubscriberConnection`, starting from version 2.11.0 all the way up to the latest release candidate version 2.37.0-rc."],["The class includes functions such as `Subscribe`, `ExactlyOnceSubscribe`, `Pull`, and `options`, each with specific parameters, return types, and purposes related to interacting with the Pub/Sub service."],["`SubscriberConnection` uses nested `*Params` classes to pass arguments to its member functions, enabling it to make changes to the classes arguments without breaking all the derived classes."]]],[]]
