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"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThis webpage details the \u003ccode\u003ePublisherConnection\u003c/code\u003e class for the Google Cloud Pub/Sub C++ library, focusing on its role as an interface for publishing events.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePublisherConnection\u003c/code\u003e class defines pure-virtual methods, allowing users to inject custom behavior for testing, such as using Google Mock objects.\u003c/p\u003e\n"],["\u003cp\u003eThe latest release is version 2.37.0-rc, with the listed versions ranging from 2.11.0 up to 2.37.0-rc, and each version links to the respective \u003ccode\u003ePublisherConnection\u003c/code\u003e documentation.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePublisherConnection\u003c/code\u003e class includes interfaces for key functions like \u003ccode\u003ePublish\u003c/code\u003e, \u003ccode\u003eFlush\u003c/code\u003e, and \u003ccode\u003eResumePublish\u003c/code\u003e, each with its respective \u003ccode\u003eParams\u003c/code\u003e classes for argument handling.\u003c/p\u003e\n"],["\u003cp\u003eA concrete \u003ccode\u003ePublisherConnection\u003c/code\u003e instance for interacting with the real Cloud Pub/Sub service can be created using the \u003ccode\u003eMakePublisherConnection()\u003c/code\u003e function.\u003c/p\u003e\n"]]],[],null,[]]
