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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14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 class, which is used for administrative operations related to topics in Google Cloud Pub/Sub.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eTopicAdminConnection\u003c/code\u003e class interface is deprecated and users are encouraged to switch to \u003ccode\u003eSubscriptionAdminClient\u003c/code\u003e and \u003ccode\u003eSubscriptionAdminClient\u003c/code\u003e instead.\u003c/p\u003e\n"],["\u003cp\u003eThe interface defines functions such as \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, each of which corresponds to a method in \u003ccode\u003eTopicAdminClient\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of the \u003ccode\u003eTopicAdminConnection\u003c/code\u003e class is 2.37.0-rc, and there are several older versions available for reference, ranging from 2.36.0 down to 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003eThe class utilizes lightweight structures called "Params" to pass arguments, allowing for easier management of member function arguments and avoiding breaking derived classes.\u003c/p\u003e\n"]]],[],null,[]]
