DbTxn beginTransaction(final DbEnv dbenv, final DbTxn parent) throws DatabaseException {
int flags = 0;
flags |= readCommitted ? DbConstants.DB_READ_COMMITTED : 0;
flags |= readUncommitted ? DbConstants.DB_READ_UNCOMMITTED : 0;
flags |= noSync ? DbConstants.DB_TXN_NOSYNC : 0;
flags |= noWait ? DbConstants.DB_TXN_NOWAIT : 0;
flags |= snapshot ? DbConstants.DB_TXN_SNAPSHOT : 0;
flags |= sync ? DbConstants.DB_TXN_SYNC : 0;
flags |= wait ? DbConstants.DB_TXN_WAIT : 0;
flags |= writeNoSync ? DbConstants.DB_TXN_WRITE_NOSYNC : 0;
return dbenv.txn_begin(parent, flags);
}
/* package */
static ReplicationStatus getStatus(
final int errCode, final DatabaseEntry cdata, final int envid, final LogSequenceNumber lsn) {
switch (errCode) {
case 0:
return SUCCESS;
case DbConstants.DB_REP_IGNORE:
return IGNORE;
case DbConstants.DB_REP_ISPERM:
return new ReplicationStatus("ISPERM", errCode, cdata, envid, lsn);
case DbConstants.DB_REP_NEWSITE:
return new ReplicationStatus("NEWSITE", errCode, cdata, envid, lsn);
case DbConstants.DB_REP_NOTPERM:
return new ReplicationStatus("NOTPERM", errCode, cdata, envid, lsn);
default:
throw new IllegalArgumentException("Unknown error code: " + DbEnv.strerror(errCode));
}
}
/**
* Compare two LogSequenceNumber objects.
*
* <p>This method returns 0 if the two LogSequenceNumber objects are equal, 1 if lsn0 is greater
* than lsn1, and -1 if lsn0 is less than lsn1.
*
* <p>
*
* @param lsn1 The first LogSequenceNumber object to be compared.
* <p>
* @param lsn2 The second LogSequenceNumber object to be compared.
* <p>
* @return 0 if the two LogSequenceNumber objects are equal, 1 if lsn1 is greater than lsn2, and
* -1 if lsn1 is less than lsn2.
*/
public static int compare(LogSequenceNumber lsn1, LogSequenceNumber lsn2) {
return DbEnv.log_compare(lsn1, lsn2);
}
/** {@inheritDoc} */
public String toString() {
String s = super.toString();
if (errno != 0) s += ": " + DbEnv.strerror(errno);
return s;
}
