The behavior of some Natural statements and Natural system commands changes in a server environment.
This document covers the following topics:
This section covers the following statements:
Output to a screen (output to Report 0) is not appropriate in a
server environment, and in some cases is not possible. Therefore, in the case
of an interactive I/O in the server environment, the error
NAT0723 is returned to the client. Redirecting the I/O
by using the MAINPR parameter is, of course, possible
and is fully supported.
When output is written to a report by a method, the report is opened at the start of the method and closed at the end. The report is not kept open between method calls to avoid interference between clients.
When you access a work file in a method, the file is opened at the start of the method and closed at the end. The file is not kept open between method calls to avoid interference between clients.
The behavior of the TERMINATE statement matches that of
the STOP statement. Processing of return values is not
supported.
The STOP and TERMINATE statements behave
in the same way as the ESCAPE ROUTINE statement during method
execution. Method execution is terminated immediately without producing any
return value.
Only the following Natural commands are allowed in the server environment:
CATALOG
CLEAR
EXECUTE
LOGOFF
LOGON
READ
RETURN
RUN
SAVE
SETUP
STOW
From this list, the commands CATALOG,
CLEAR, READ,
RUN, SAVE and
STOW are only allowed if the server is running under
a development Natural (natural.exe).
All commands that are not allowed will be rejected with the error NAT0082.
