#include <db_cxx.h> int Db::set_heap_regionsize(u_int32_t npages);
Sets the number of pages in a region of a database configured to use the Heap access method. If this method is never called, the default region size for the database's page size will be used. You can set the database page size using the Db::set_pagesize() method.
The Db::set_heap_regionsize() method may not be
called after the Db::open()
method is called. If the database already exists when
Db::open() is called, the
information specified to
Db::set_heap_regionsize() will be
ignored. If the specified region size is larger than the maximum
region size for the database's page size, an error will be
returned when Db::open() is
called. The maximum allowable region size will be included in the
error message.
The Db::set_heap_regionsize()
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.
The Db::set_heap_regionsize()
method may fail and throw a DbException
exception, encapsulating one of the following non-zero errors, or return one
of the following non-zero errors:
If the specified region size was too small; the method was called after Db::open() was called; or if an invalid flag value or parameter was specified.