The class Transaction monitors the state of a transaction on a database connection. More...

#include <transaction.h>

Public Member Functions
	Transaction (const Connection &db_, bool starttransaction=true)
	Create a Transaction object.
	~Transaction ()
	Roll back transaction if still active.
const Connection &	getConnection () const
Connection &	getConnection ()
void	begin ()
	Start a new transaction. If there is an active transaction, it is rolled back first.
void	commit ()
	Commit the current transaction.
void	rollback ()
	Roll back the current transaction.
void	lockTable (const std::string &tableName, bool exclusive=true)
	Lock the specified table.

Detailed Description

The class Transaction monitors the state of a transaction on a database connection.

The constructor by default starts a transaction on the database. The transaction state is held in the class. The destructor rolls back the transaction if it isn't explicitely commited or rolled back.

Constructor & Destructor Documentation

◆ Transaction()

tntdb::Transaction::Transaction	(	const Connection &	db_,
		bool	starttransaction = true )

Create a Transaction object.

◆ ~Transaction()

tntdb::Transaction::~Transaction ( )

Roll back transaction if still active.

Member Function Documentation

◆ begin()

void tntdb::Transaction::begin ( )

Start a new transaction. If there is an active transaction, it is rolled back first.

◆ commit()

void tntdb::Transaction::commit ( )

Commit the current transaction.

If there is no active transaction, nothing is done. The transaction state is reset.

◆ lockTable()

void tntdb::Transaction::lockTable	(	const std::string &	tableName,
		bool	exclusive = true )

Lock the specified table.

Locks are released when the transaction is committed or rolled back either explicitly or implicitly by the destructor.

◆ rollback()

void tntdb::Transaction::rollback ( )

Roll back the current transaction.