/**
* Log this LN. Whether its logged as a transactional entry or not depends on the type of locker.
*
* @param env the environment.
* @param dbId database id of this node. (Not stored in LN)
* @param key key of this node. (Not stored in LN)
* @param oldLsn is the LSN of the previous version or null.
* @param locker owning locker.
*/
private long log(
EnvironmentImpl env,
DatabaseId dbId,
byte[] key,
long oldLsn,
Locker locker,
boolean isProvisional)
throws DatabaseException {
LogEntryType entryType;
long logAbortLsn;
boolean logAbortKnownDeleted;
Txn logTxn;
if (locker != null && locker.isTransactional()) {
entryType = getTransactionalLogType();
WriteLockInfo info = locker.getWriteLockInfo(getNodeId());
logAbortLsn = info.getAbortLsn();
logAbortKnownDeleted = info.getAbortKnownDeleted();
logTxn = locker.getTxnLocker();
assert logTxn != null;
} else {
entryType = getLogType();
logAbortLsn = DbLsn.NULL_LSN;
logAbortKnownDeleted = false;
logTxn = null;
}
if (oldLsn == logAbortLsn) {
oldLsn = DbLsn.NULL_LSN;
}
LNLogEntry logEntry =
new LNLogEntry(entryType, this, dbId, key, logAbortLsn, logAbortKnownDeleted, logTxn);
LogManager logManager = env.getLogManager();
return logManager.log(logEntry, isProvisional, oldLsn);
}
/** Delete this LN's data and log the new version. */
public long delete(DatabaseImpl database, byte[] lnKey, byte[] dupKey, long oldLsn, Locker locker)
throws DatabaseException {
makeDeleted();
EnvironmentImpl env = database.getDbEnvironment();
long newLsn = DbLsn.NULL_LSN;
if (dupKey != null) {
LogEntryType entryType;
long logAbortLsn;
boolean logAbortKnownDeleted;
Txn logTxn;
if (locker.isTransactional()) {
entryType = LogEntryType.LOG_DEL_DUPLN_TRANSACTIONAL;
WriteLockInfo info = locker.getWriteLockInfo(getNodeId());
logAbortLsn = info.getAbortLsn();
logAbortKnownDeleted = info.getAbortKnownDeleted();
logTxn = locker.getTxnLocker();
} else {
entryType = LogEntryType.LOG_DEL_DUPLN;
logAbortLsn = DbLsn.NULL_LSN;
logAbortKnownDeleted = true;
logTxn = null;
}
if (oldLsn == logAbortLsn) {
oldLsn = DbLsn.NULL_LSN;
}
DeletedDupLNLogEntry logEntry =
new DeletedDupLNLogEntry(
entryType,
this,
database.getId(),
dupKey,
lnKey,
logAbortLsn,
logAbortKnownDeleted,
logTxn);
LogManager logManager = env.getLogManager();
newLsn = logManager.log(logEntry, false, oldLsn);
} else {
newLsn = log(env, database.getId(), lnKey, oldLsn, locker);
}
return newLsn;
}
