How to Reevaluate Resource Activity List Back Orders via Code

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Stan Davis asked Nov 11, '21 Stan Davis commented Nov 16, '21

How to Reevaluate Resource Activity List Back Orders via Code

Probably a simple answer, but how does one call the reevaluateBackOrders() method on the list behind an object-mode Resource activity via custom code?

I tried this but no joy...

List mylist = Model.find("Tools/ProcessFlow/ProcessFlow/Resource");

mylist.reevaluateBackOrders();

Thanks, Stan

Software Version:

FlexSim 21.2.4

backorder reevaluation

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Stan Davis commented · Nov 11, 2021 at 09:06 PM

Tried this. No errors, but didn't cause the resource to reevaluate the back orders...

Object myobj = Model.find("Tools/ProcessFlow/ProcessFlow/Resource");

List mylist = myobj.attrs.variables.subnodes["list"];

mylist.reevaluateBackOrders();

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Answer 1 · 2021-11-12T10:27:35Z

Felix Möhlmann answered Nov 12, '21 Stan Davis commented Nov 16, '21

The activity creates copies of the list for each process flow instance. If it is an instanced flow, these will be subnodes of "...>stats/instances" ("..." is the path to the activity object). In case of a general process flow, there is only one instance under "...>stats/globalInstance".

The actual list node can be found under those instance nodes.

The following code should then work to reevaluate the back orders:

List resourceList = Model.find("/Tools/ProcessFlow/ProcessFlow/Resource>stats/globalInstance/list");
resourceList.reevaluateBackOrders();

1636712665137.png (15.3 KiB)

· 3

Matthew Gillespie ♦♦ commented · Nov 12, 2021 at 04:47 PM

@Felix Möhlmann @Stan Davis The caveat here is that we don't make any guarantee that this will work in future versions if we make changes to the underlying structure. The only fully supported way to do this currently is to use a process flow List activity and point it at a global list and then call reevaluateBackOrders() on the global list.

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Stan Davis Matthew Gillespie ♦♦ commented · Nov 16, 2021 at 08:03 PM

Understood. Too far committed with the current model to change. Thanks - Stan

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Stan Davis commented · Nov 16, 2021 at 08:01 PM

Felix, That worked. I had built a small test model with a single process flow. The list was still copied under the stats/instances. There is nothing under stats/globalInstance. Thanks again - Stan

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