#include <db_cxx.h>

int
Db::set_re_len(u_int32_t re_len);

Description

For the Queue access method, specify that the records are of length re_len.

For the Recno access method, specify that the records are fixed-length, not byte-delimited, and are of length re_len.

Any records added to the database that are less than re_len bytes long are automatically padded (see Db::set_re_pad for more information).

Any attempt to insert records into the database that are greater than re_len bytes long will cause the call to fail immediately and return an error.

The Db::set_re_len interface may be used only to configure Berkeley DB before the Db::open interface is called.

The Db::set_re_len method either returns a non-zero error value or throws an exception that encapsulates a non-zero error value on failure, and returns 0 on success.

Errors

The Db::set_re_len method may fail and throw an exception or return a non-zero error for the following conditions:

EINVAL

An invalid flag value or parameter was specified.

Called after Db::open was called.

The Db::set_re_len method may fail and throw an exception or return a non-zero error for errors specified for other Berkeley DB and C library or system methods. If a catastrophic error has occurred, the Db::set_re_len method may fail and either return DB_RUNRECOVERY or throw an exception encapsulating DB_RUNRECOVERY, in which case all subsequent Berkeley DB calls will fail in the same way.

Class

See Also