Avatar

Please consider registering
guest

sp_LogInOut Log In sp_Registration Register

Register | Lost password?
sp_Search Search
Advanced Search
Advanced Search

— Forum Scope —




— Match —





— Forum Options —





Minimum search word length is 3 characters - maximum search word length is 84 characters

sp_Search Search
Go to Bottom
No permission to create posts
sp_Feed Topic RSS sp_TopicIcon
Programmatically Changing Attributes of Generated Server Nodes
September 27, 2022
19:16, EEST
Avatar
hbrackel
Member
Members
Forum Posts: 135
Member Since:
February 21, 2014
sp_UserOfflineSmall Offline
Go to Top
1sp_EditHistory sp_Permalink sp_Print

Hi there,

I built a server (SDK 4.8.0) with some nodes being instantiated from generated code. If I try to programmatically change any attributes other than the value attribute in response to some business logic, the attributes are not updated “to the outside”, i.e. connected clients (UaExpert, Prosys Browser) do not reflect the attribute changes, although reading the attributes back from the same code that has set the attributes gives the correct values.

Use case: in response to a method call (callback in generated code), that callback shall change the UserAccessLevel and Executable attributes of some (generated) variables and methods, respectively.

I also went through changing the attributes using the nodeManager – with the same result.

Any hint will be much appreciated.

Thanks,
Hans-Uwe

September 28, 2022
10:38, EEST
Avatar
Bjarne Boström
Moderator
Moderators
Forum Posts: 983
Member Since:
April 3, 2012
sp_UserOfflineSmall Offline
Go to Top
2sp_Permalink sp_Print

Hi

The UserXXX Attributes must be handled in a reactive manner via (based on ServiceContext in) IoManagerListener(s)on the NodeManager.getIoManager() on the namespaces you created the instances to. IMPORTANT, here I mean methods onGetUserAccessLevel, onGetUserExecutable and onGetUserWriteMask, it wont work via the Attribute directly.

It is sort of a mistake that they are in the UaNode API, though they do make sense on the client side as there the node represents the single user. And probably it would be best if it would work via the attribute-returning listener methods, but this design is very old.

Any other Attribute should be ok and visible if you set it in the server-side UaNodes.

September 28, 2022
16:07, EEST
Avatar
hbrackel
Member
Members
Forum Posts: 135
Member Since:
February 21, 2014
sp_UserOfflineSmall Offline
Go to Top
3sp_Permalink sp_Print

Many thanks for your suggestion.
Using the IOManagerListener (or IOManagerAdapter, respectively) is actually much easier than trying to use the UaNode accessors.

-HU

No permission to create posts
sp_Feed All RSS
Go to top
Forum Timezone: Europe/Helsinki

Most Users Ever Online: 518

Currently Online:
28 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Top Posters:

hbrackel: 135

pramanj: 86

Francesco Zambon: 81

rocket science: 77

ibrahim: 75

Sabari: 62

kapsl: 57

gjevremovic: 49

Xavier: 43

fred: 41

Member Stats:

Guest Posters: 0

Members: 678

Moderators: 16

Admins: 1

Forum Stats:

Groups: 3

Forums: 15

Topics: 1467

Posts: 6259

Newest Members:

DonaldPooma, fidelduke938316, Jan-Pfizer, DavidROunc, fen.pang@woodside.com, aytule, rashadbrownrigg, christi10l, ahamad1, Flores Frederick

Moderators: Jouni Aro: 1009, Otso Palonen: 32, Tuomas Hiltunen: 5, Pyry: 1, Petri: 0, Bjarne Boström: 983, Heikki Tahvanainen: 402, Jukka Asikainen: 1, moldzh08: 0, Jimmy Ni: 26, Teppo Uimonen: 21, Markus Johansson: 42, Niklas Nurminen: 0, Matti Siponen: 321, Lusetti: 0, Ari-Pekka Soikkeli: 5

Administrators: admin: 1