ydb::TxActor Class Reference

#include <userver/ydb/transaction.hpp>

Detailed Description

Transaction actor for use with TableClient::RetryTx.

Provides only query execution within a transaction. Commit and rollback are controlled by returning TxAction from the retry function. https://ydb.tech/docs/en/concepts/transactions

Examples

samples/ydb_service/views/upsert-2rows/post/view.cpp.

Definition at line 44 of file transaction.hpp.

Public Member Functions
	TxActor (const TxActor &)=delete
TxActor &	operator= (const TxActor &)=delete
	TxActor (TxActor &&) noexcept=delete
TxActor &	operator= (TxActor &&)=delete
PreparedArgsBuilder	GetBuilder () const
template<typename... Args>
ExecuteResponse	Execute (const Query &query, Args &&... args)
template<typename... Args>
ExecuteResponse	Execute (ExecuteSettings settings, const Query &query, Args &&... args)
ExecuteResponse	Execute (ExecuteSettings settings, const Query &query, PreparedArgsBuilder &&builder)

Member Function Documentation

Execute() [1/2]

template<typename... Args>

ExecuteResponse ydb::TxActor::Execute	(	const Query &	query,
		Args &&...	args )

Execute a single data query as a part of the transaction. Query parameters are passed in Args as "string key - value" pairs:

tx.Execute(query, "name1", value1, "name2", value2, ...);

Use ydb::PreparedArgsBuilder for storing a generic buffer of query params if needed.

Definition at line 97 of file transaction.hpp.

Execute() [2/2]

template<typename... Args>

ExecuteResponse ydb::TxActor::Execute	(	ExecuteSettings	settings,
		const Query &	query,
		Args &&...	args )

Definition at line 104 of file transaction.hpp.

Friends And Related Symbol Documentation

TableClient

friend class TableClient

friend

Definition at line 74 of file transaction.hpp.

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The documentation for this class was generated from the following file:

• userver/ydb/transaction.hpp