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Berkeley DB: DbSequence::set_flags
DbSequence::set_flags
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#include <db_cxx.h>
int
DbSequence::set_flags(u_int32_t flags);
int DbSequence::get_flags(u_int32_t *flagsp);
Description: DbSequence::set_flags
Configure a sequence. The flags are only effective when creating a
sequence. Calling DbSequence::set_flags is additive; there is no way
to clear flags.
The DbSequence::set_flags method may not be called after the
DbSequence::open method is called.
The DbSequence::set_flags 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.
Parameters
- flags
- The flags parameter must be set to 0 or by bitwise inclusively OR'ing together one
or more of the following values:
- DB_SEQ_DEC
- Specify that the sequence should be decremented.
- DB_SEQ_INC
- Specify that the sequence should be incremented. This is the default.
- DB_SEQ_WRAP
- Specify that the sequence should wrap around when it is incremented
(decremented) past the specified maximum (minimum) value.
Errors
The DbSequence::set_flags method
may fail and throw
DbException,
encapsulating one of the following non-zero errors, or return one of
the following non-zero errors:
- EINVAL
- An
invalid flag value or parameter was specified.
Description: DbSequence::get_flags
The DbSequence::get_flags method returns the current flags.
The DbSequence::get_flags method may be called at any time during the life of the
application.
The DbSequence::get_flags 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.
Parameters
- flagsp
- The DbSequence::get_flags method returns the
current flags in flagsp.
Class
DbSequence
See Also
Sequences and Related Methods
Copyright (c) 1996-2004 Sleepycat Software, Inc. - All rights reserved.
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