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| psandip |
 Posted: Mon Oct 19, 2009 1:04 am Post subject: Using shared variable and additional instances together |
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Novice
Joined: 11 Aug 2006
Posts: 17
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Hi,
I am using a shared variable for my message flow. The message flow generated a filename based on timestamp and assigns this name to the shared variable. A check is made within the compute node to see whether the shared variable is null or does it have a value. If it is null, the the filename is generated and assigned to it else, no need to assign a new name. Now suppose 10 instances of this message flow is to be deployed. once the shared variable is populated with a filename, can the other 9 flows access this value or they see it as null?
_________________
With Best Regards,
Sandeep |
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| nheng |
| Posted: Mon Oct 19, 2009 2:18 am Post subject: Re: Using shared variable and additional instances together |
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Apprentice
Joined: 07 Dec 2007
Posts: 39
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| psandip wrote: |
Hi,
I am using a shared variable for my message flow. The message flow generated a filename based on timestamp and assigns this name to the shared variable. A check is made within the compute node to see whether the shared variable is null or does it have a value. If it is null, the the filename is generated and assigned to it else, no need to assign a new name. Now suppose 10 instances of this message flow is to be deployed. once the shared variable is populated with a filename, can the other 9 flows access this value or they see it as null? |
Declare it be external variable .Look t it in document |
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| WMBDEV1 |
| Posted: Mon Oct 19, 2009 2:38 am Post subject: Re: Using shared variable and additional instances together |
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Sentinel
Joined: 05 Mar 2009
Posts: 888
Location: UK
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| nheng wrote: |
| Declare it be external variable .Look t it in document |
How will this help? Please tell us what you hope to gain by using the EXTERNAL keyword in this context? |
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| sirsi |
| Posted: Wed Oct 21, 2009 7:19 am Post subject: |
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Disciple
Joined: 11 Mar 2005
Posts: 177
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| psandip: shared variables are shared across all threads(instances) of the flow... |
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| Sam Uppu |
| Posted: Wed Oct 21, 2009 7:23 am Post subject: |
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Yatiri
Joined: 11 Nov 2008
Posts: 610
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Just curious to know - which means we should not use multiple instances of the flow when shared variables are used in a flow?.
Thanks. |
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| sirsi |
| Posted: Wed Oct 21, 2009 7:31 am Post subject: |
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Disciple
Joined: 11 Mar 2005
Posts: 177
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