@Override
public void rollback() {
commitLock.writeLock().lock();
try {
cleanTxQueue();
super.rollback();
uncommitedData = false;
} finally {
commitLock.writeLock().unlock();
}
}
@Override
public Engine snapshot() {
commitLock.writeLock().lock();
try {
cleanTxQueue();
if (uncommitedData && canRollback())
throw new IllegalAccessError("Can not create snapshot with uncommited data");
return new Tx();
} finally {
commitLock.writeLock().unlock();
}
}