The base class for the Spanner library transaction rerun policies.
The Client::Commit() functions (there are several overloads) consume a callable to create mutations or a list of mutations. Commit() creates a transaction and applies the mutations. If the transaction fails, an instance of this class is used to control whether the transaction will be attempted again.
Functions
clone() const
Creates a new instance of the policy, reset to the initial state.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22 UTC."],[[["\u003cp\u003eThis webpage provides documentation for the \u003ccode\u003eTransactionRerunPolicy\u003c/code\u003e class in the Google Cloud Spanner C++ library, which dictates how transactions are retried upon failure.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation covers multiple versions of the Spanner library, ranging from version 2.11.0 to the latest release candidate 2.37.0-rc, allowing users to access version-specific details.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eTransactionRerunPolicy\u003c/code\u003e class is used within the \u003ccode\u003eClient::Commit()\u003c/code\u003e function to manage the automatic rerunning of failed transactions, controlling whether the transaction will be retried.\u003c/p\u003e\n"],["\u003cp\u003eThe class includes functions like \u003ccode\u003eclone()\u003c/code\u003e, \u003ccode\u003eOnFailure()\u003c/code\u003e, \u003ccode\u003eIsExhausted()\u003c/code\u003e, and \u003ccode\u003eIsPermanentFailure()\u003c/code\u003e, which are used to manage the policy's lifecycle and to determine if retries should be attempted.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eOnFailure()\u003c/code\u003e function allows users to pass a status for evaluation and the functions that return booleans allow the user to determine the state of the policy based on the status passed in.\u003c/p\u003e\n"]]],[],null,[]]
