Viewing file:  txn_class.html (2.8 KB) -rw-r--r--
Select action/file-type:
 (+) | (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
Berkeley DB: DbTxn
DbTxn
|
 
|
#include <db_cxx.h>
class DbTxn { ... };
Description
This manual page describes the specific details of the DbTxn class.
The DbEnv transaction methods and the DbTxn class provide
transaction semantics. Full transaction support is provided by a
collection of modules that provide interfaces to the services required
for transaction processing. These services are recovery, concurrency
control, and the management of shared data.
Transaction semantics can be applied to the access methods described in
Db through method call parameters.
The model intended for transactional use (and the one that is used by
the access methods) is write-ahead logging to record both before- and
after-images. Locking follows a two-phase protocol with all locks being
released at transaction commit.
Class
DbEnv, DbTxn
See Also
DbEnv::set_tx_max,
DbEnv::set_tx_recover,
DbEnv::set_tx_timestamp,
DbTxn::abort,
DbEnv::txn_begin,
DbEnv::txn_checkpoint,
DbTxn::commit,
DbTxn::discard,
DbTxn::id,
DbTxn::prepare,
DbEnv::txn_recover,
and
DbEnv::txn_stat.
Copyright Sleepycat Software
|