A connection to Cloud Pub/Sub for topic-related administrative operations.
This interface defines pure-virtual functions for each of the user-facing overload sets in TopicAdminClient. That is, all of TopicAdminClient'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 TopicAdminClient object for use in their own tests.
To create a concrete instance that connects you to the real Cloud Pub/Sub service, see MakeTopicAdminConnection().
The *Params nested classes
Applications may define classes derived from TopicAdminConnection, 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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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 document details the \u003ccode\u003eTopicAdminConnection\u003c/code\u003e interface, which provides pure-virtual functions corresponding to each user-facing overload set in \u003ccode\u003eTopicAdminClient\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eTopicAdminConnection\u003c/code\u003e interface enables users to inject custom behavior into a \u003ccode\u003eTopicAdminClient\u003c/code\u003e object, often used for testing purposes.\u003c/p\u003e\n"],["\u003cp\u003eThe interface defines methods for various topic-related administrative operations like \u003ccode\u003eCreateTopic\u003c/code\u003e, \u003ccode\u003eGetTopic\u003c/code\u003e, \u003ccode\u003eUpdateTopic\u003c/code\u003e, \u003ccode\u003eListTopics\u003c/code\u003e, \u003ccode\u003eDeleteTopic\u003c/code\u003e, \u003ccode\u003eDetachSubscription\u003c/code\u003e, \u003ccode\u003eListTopicSubscriptions\u003c/code\u003e, and \u003ccode\u003eListTopicSnapshots\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe document lists multiple versions of the \u003ccode\u003eTopicAdminConnection\u003c/code\u003e class ranging from 2.11.0 up to 2.37.0-rc, indicating the version history and the currently latest version.\u003c/p\u003e\n"],["\u003cp\u003eEach function in the \u003ccode\u003eTopicAdminConnection\u003c/code\u003e interface uses a \u003ccode\u003e*Params\u003c/code\u003e struct to pass arguments, allowing for flexibility and preventing breakage in derived classes when arguments change.\u003c/p\u003e\n"]]],[],null,[]]
