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 BlockingPublisher. That is, all of BlockingPublisher'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 BlockingPublisher object for use in their own tests.
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 2025-03-21 UTC."],[[["This page details the `BlockingPublisherConnection` class for connecting to the Cloud Pub/Sub service to publish events, with the latest version being 2.37.0-rc."],["The `BlockingPublisherConnection` interface includes pure-virtual methods that correspond to the overload sets found in `BlockingPublisher`, allowing users to customize behavior, especially for testing purposes."],["To connect to the live Cloud Pub/Sub service, use the `MakeBlockingPublisherConnection()` function, which creates a concrete instance of `BlockingPublisherConnection`."],["The interface defines a virtual `Publish(PublishParams)` function, which mirrors the functionality of `BlockingPublisher::Publish()` and accepts `PublishParams` as input to publish events."],["The interface also defines a virtual `options()` function that returns the `Options` that were configured at initialization time."]]],[]]
