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12:26, EEST
March 26, 2014
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Hello,
I had a performance problem when creating a server with 30 000 references created from always the same object to around 15 000 different objects (1 custom reference and 1 hasEventSource reference). I was gonna ask here but then I found the addNewReference method. What was taking 25 minutes is now taking a few hundreds milliseconds so it’s perfect.
I believe that the performance cost is that when using addReference it has to check all existing references before creating a new one. With addNewReference I think that it is added without testing which is way faster when you have thousands of references.
The addNewReference method is not documented so I just would like to be sure that it’s ok to use this way and that it has no drawback?
Thanks.
13:48, EEST
April 3, 2012
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Hi,
Yes you are correct, it behaves as you expect. Seems we are missing javadocs there.. in fact the only mention is in the 2.0.0 release notes which stated “New: ServerNode.addNewReference() – fast implementation without checks “.
As long as you are sure the reference does not exist in the node already, there should be no drawbacks.
– Bjarne
(As a note for future readers, the method is in ServerNode, i.e.server side implementations of UaNode and not directly in UaNode interface)
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