tntdb
1.3
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The class Transaction monitors the state of a transaction on a database-conection. More...
#include <transaction.h>
Public Member Functions | |
Transaction (const Connection &db_, bool starttransaction=true) | |
Start a transaction when instructed. More... | |
~Transaction () | |
roll back transaction when still active More... | |
const Connection & | getConnection () const |
Connection & | getConnection () |
void | begin () |
Starts a new transaction. More... | |
void | commit () |
commits the current transaction. More... | |
void | rollback () |
rolls back the current transaction. More... | |
void | lockTable (const std::string &tableName, bool exclusive=true) |
Locks the specified table. More... | |
The class Transaction monitors the state of a transaction on a database-conection.
The constructor starts by default a transaction on the database. The transactionstate is hold it the class. The destructor rolls the transaction back, when not explicitely commited or rolled back.
tntdb::Transaction::Transaction | ( | const Connection & | db_, |
bool | starttransaction = true |
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) |
Start a transaction when instructed.
tntdb::Transaction::~Transaction | ( | ) |
roll back transaction when still active
void tntdb::Transaction::begin | ( | ) |
Starts a new transaction.
If there is a active transaction, it is rolled back first
void tntdb::Transaction::commit | ( | ) |
commits the current transaction.
If there is no active transaction, then nothing is done. The transactionstate is reset.
void tntdb::Transaction::lockTable | ( | const std::string & | tableName, |
bool | exclusive = true |
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) |
Locks the specified table.
Locks are released when the transaction is committed or rolled back either explicitly or implicitly by the destructor of the transaction object.
void tntdb::Transaction::rollback | ( | ) |
rolls back the current transaction.
If there is no active transaction, then nothing is done. The transactionstate is reset.