| Generate
a default operation indicator
(CRUD context) into request and session,
with all entries set to default values. |
Get
the operation indicator (CRUD context) from session;
if not found, generate one into request and session,
with all entries set to default values;
then fill each entry with non-null request parameters. |
Get
the operation indicator (CRUD context) from request;
if not found, generate one into request,
with all entries set to default values;
then fill each entry with non-null request parameters;
use only once for each request,
totally no relationship to session. |