Caché Parameter File Reference
FileMode
[Home] [Back] [Next]
InterSystems: The power behind what matters   
Class Reference   
Search:    

Enable/disable writing to a non-existent file.
Synopsis
[Miscellaneous]    FileMode=n
Description
The value n may be 1 or 0:
Suppose Caché encounters an OPEN command such as:
OPEN "file.x":"WS"
When FileMode=1 the new file is created automatically, even though the N parameter is not specified with the OPEN command. The result when FileMode=1 is equivalent to adding the N parameter to each OPEN command, so that:
OPEN "file.x":"WS"
is equivalent to:
OPEN "file.x":"WNS"
On the other hand, when Caché encounters an OPEN command and no N parameter is provided and the file does not already exist, then if FileMode=0 there is no result from the OPEN command except that the process hangs until interrupted.
Examples
FileMode=0
Range of Values
0 or 1. On OpenVMS systems, the default value of FileMode is 1; on all other platforms the default value of FileMode is 0.
Management Portal
On the page System Administration > Configuration > Additional Settings > Compatibility, in the FileMode row, select Edit. Choose true (selected) or false (cleared).