Berkeley DB: DbLog.flush
Description: Berkeley DB: An embedded database programmatic toolkit.
Keywords: embedded,database,programmatic,toolkit,b+tree,btr ee,hash,hashing,transaction,transactions,locking,logging,access method,access me thods,java,C,C++

# DbLog.flush

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    import com.sleepycat.db.*;

    public void flush(DbLsn lsn)
    	throws DbException;

# Description

The DbLog.flush method guarantees that all log records whose DbLsn values are less than or equal to the lsn argument have been written to disk. If lsn is null, all records in the log are flushed.

The DbLog.flush method throws an exception that encapsulates an errno on failure.

# Errors

If a fatal error occurs in Berkeley DB, the DbLog.flush method may fail and throw a DbRunRecoveryException, at which point all subsequent database calls will also fail in the same way.

The DbLog.flush method may fail and throw an exception for any of the errors specified for the following Berkeley DB and C library functions: abort(3), close(3), dbenv->db_paniccall(3), fcntl(3), fflush(3), fprintf(3), free(3), fsync(3), getenv(3), getpid(3), getuid(3), isdigit(3), lseek(3), malloc(3), memcpy(3), memset(3), open(3), sigfillset(3), sigprocmask(3), snprintf(3), stat(3), strerror(3), strlen(3), unlink(3), vfprintf(3), vsnprintf(3), and write(3).

In addition, the DbLog.flush method may fail and throw an exception encapsulating errno for the following conditions:

EINVAL
  An invalid flag value or parameter was specified.

# Class

DbLog

# See Also

DbLog.archive, DbLog.close, DbLog.compare, DbLog.file, DbLog.flush, DbLog.get, DbLog.open, DbLog.put, DbLog.db_register, DbLog.stat, DbLog.unlink and DbLog.db_unregister.`