@Override
public void rollback() throws UnsupportedOperationException {
commitLock.lock();
try {
// flush modified records
for (int segment = 0; segment < locks.length; segment++) {
Lock lock = locks[segment].writeLock();
lock.lock();
try {
writeCache[segment].clear();
if (caches != null) {
caches[segment].clear();
}
uncommittedDataLongs[segment].clear();
uncommittedIndexTable[segment].clear();
} finally {
lock.unlock();
}
}
structuralLock.lock();
try {
uncommittedStackPages.clear();
// restore headVol from backup
headVol.putData(0, headVolBackup, 0, headVolBackup.length);
indexPages = indexPagesBackup.clone();
wal.rollback();
wal.sync();
} finally {
structuralLock.unlock();
}
} finally {
commitLock.unlock();
}
}
