db::ObjectLock Class Reference
[Object Ids and Locking]

#include <ittia/dbxx/dbxx_object_lock.h>

List of all members.

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Detailed Description

Lock a database table or row.

Use lock or try_lock to lock the object. The lock is released when the ObjectLock object is destroyed, or when unlock is called explicitly.

Each ObjectLock instance can lock one table or row at a time. If a database object is already locked when a new lock is requested, the first lock is released after the new lock is granted.

See also:

TableId, RowId

Public Member Functions
	ObjectLock (const ObjectId &)
int	lock (ObjectLockMode, ObjectLockDuration=DB_COMMIT_LOCK)
int	try_lock (ObjectLockMode, ObjectLockDuration=DB_COMMIT_LOCK)
int	lock (const ObjectId &, ObjectLockMode, ObjectLockDuration=DB_COMMIT_LOCK)
int	try_lock (const ObjectId &, ObjectLockMode, ObjectLockDuration=DB_COMMIT_LOCK)
int	unlock ()
bool	is_locked () const
const ObjectId &	_get_object_id () const
Static Public Member Functions
static db_hlock_t	_lock (const ObjectId &, ObjectLockMode, ObjectLockDuration, bool trylock)