1I-Berkeley DB: DbLog.db_register[P

DbLog.db_register





import com.sleepycat.db.*;

7public int db_register(Db dbp, String name, int dbtype) throws DbException;





Description



KThe DbLog.db_register method registers a file name with the log manager and%returns a file identification number.Jcopies a file identification number into the memory location referenced by fidp.

DThis file identification number should be used in all subsequent logGmessages that refer to operations on the file. The log manager recordsGall file name to file identification number mappings at each checkpointIso that a recovery process can identify the file to which a record in the log refers.

JThe DbLog.db_register method is called when an access method registers the5open of a file. The dbp parameter should be aBpointer to the Dbobject-which is being returned by the access method.

AThe type parameter should be one of the types of databasesQspecified in Db.open, e.g., Db.DB_HASH.

The DbLog.db_registerHmethod throws an exception that encapsulates an errno on failure.



Errors

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

The DbLog.db_register&method may fail and throw an exceptionKfor 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), memcmp(3), memcpy(3), memset(3),open(3), realloc(3),sigfillset(3),sigprocmask(3), snprintf(3),stat(3), strerror(3), strlen(3),time(3), unlink(3), vfprintf(3), vsnprintf(3),and write(3).

"In addition, the DbLog.db_register&method may fail and throw an exceptionencapsulating errnofor the following conditions:

B

EINVAL
An invalid flag value or parameter was specified.







Class

3DbLog



See Also

>DbLog.archive,:DbLog.close,>DbLog.compare,8DbLog.file,:DbLog.flush,6DbLog.get,8DbLog.open,6DbLog.put,DbLog.db_register,8DbLog.stat,;DbLog.unlinkandJDbLog.db_unregister.
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