A connection to the Cloud Pub/Sub service to publish events.
This interface defines pure-virtual methods for each of the user-facing overload sets in Publisher. That is, all of Publisher's overloads will forward to the one pure-virtual method declared in this interface. This allows users to inject custom behavior (e.g., with a Google Mock object) in a Publisher object for use in their own tests.
To create a concrete instance that connects you to the real Cloud Pub/Sub service, see MakePublisherConnection().
The *Params nested classes
Applications may define classes derived from PublisherConnection, 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.
[[["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."],[[["This page details the `PublisherConnection` interface for the Google Cloud Pub/Sub C++ client library, providing a connection to the Cloud Pub/Sub service to publish events."],["The `PublisherConnection` class utilizes pure-virtual methods to mirror the overloads in the `Publisher` class, enabling users to inject custom behaviors, like mocking, for testing purposes."],["The content includes links to the documentation for numerous versions of the `PublisherConnection` class, from version 2.11.0 up to the latest release candidate 2.37.0-rc."],["It contains information on how to use `MakePublisherConnection()` to connect to the real Cloud Pub/Sub service and describes the nested \\*Params classes used to avoid breaking derived classes."],["It defines the interfaces for the `Publish`, `Flush`, and `ResumePublish` functions, detailing their parameters and return types, and how each correlates to their associated `Publisher` class functions."]]],[]]
