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| Callinga Function in ESQL which is stored in a CHARACTER |
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| IOnIce |
 Posted: Sat Mar 04, 2017 12:49 am Post subject: Callinga Function in ESQL which is stored in a CHARACTER |
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Newbie
Joined: 04 Mar 2017
Posts: 1
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Hi All,
I need help with this code in ESQL.
I have three functions func1(A, B, C), func2(A, B, C) and func3(A, B, C) in my ESQL code.
Now in my ESQL main code I get a value in an environment variable say
Environment.Variable.tobecalled which tells gives me the function name to be called.
It can be either Environment.Variable.tobecalled = func1
So, if I have to call the function specified in environment variable, how do I do it
I wanted something like
CALL Environment.Variable.tobecalled (A, B , C)
Is there any way to do it without using if else? |
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| fjb_saper |
| Posted: Sat Mar 04, 2017 3:22 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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You could use a CASE statement, or an EVAL statement. However the EVAL statement has a performance hit... 
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MQ & Broker admin |
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| smdavies99 |
| Posted: Sat Mar 04, 2017 9:39 am Post subject: |
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Jedi Council
Joined: 10 Feb 2003
Posts: 6076
Location: Somewhere over the Rainbow this side of Never-never land.
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I thought that this sort of thing went out of fashion years ago.
It smacks of 'Data Driven' Programming at its most extreme.
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WMQ User since 1999
MQSI/WBI/WMB/'Thingy' User since 2002
Linux user since 1995
Every time you reinvent the wheel the more square it gets (anon). If in doubt think and investigate before you ask silly questions. |
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| adubya |
| Posted: Sun Mar 05, 2017 1:31 am Post subject: |
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Partisan
Joined: 25 Aug 2011
Posts: 377
Location: GU12, UK
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This sounds like a very bad idea. You mentioned avoiding IF THEN ELSE, why can't you use that construct (or a CASE statement) ?
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andy@knownentity.com |
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| akil |
| Posted: Sun Mar 05, 2017 12:47 pm Post subject: |
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Partisan
Joined: 27 May 2014
Posts: 338
Location: Mumbai
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You could use RouteToLabel , use the LE to set the label node to propagate the message to the appropriate ComputeNode , basis the value that's coming in your message..
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