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centralise constant values

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m.schneider

Posted: Tue Feb 26, 2008 2:34 am Post subject: centralise constant values

Centurion

Joined: 10 Apr 2007
Posts: 132
Location: Germany

Is there a way to centralise constant values? I have a bunch of constants that I need in more than one flow and it does not make sense to store them in a database.

AkankshA

Posted: Tue Feb 26, 2008 3:11 am Post subject:

Grand Master

Joined: 12 Jan 2006
Posts: 1494
Location: Singapore

store all the constants in env tree and access them whenever reqd...

BUT this way u ll be building env tree for every message....

...

read about cache memory (database table ll be used though)...

or shared variables..

Happy Reading
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jefflowrey

Posted: Tue Feb 26, 2008 3:32 am Post subject:

Grand Poobah

Joined: 16 Oct 2002
Posts: 19981

Yes, you can declare variables that hold constant values in the Schema scope, and address them by name from any ESQL file that can reference the schema.
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I am *not* the model of the modern major general.

m.schneider

Posted: Tue Feb 26, 2008 4:50 am Post subject:

Centurion

Joined: 10 Apr 2007
Posts: 132
Location: Germany

Thanks for the reply. Obviously what I was trying to do does not work. I've beent trying to reference a file with constants in my util schema, ...

Just found this:

Constants are locally reusable and can be used where they are defined in any ESQL or mapping file within the same broker schema.

Constants are not globally reusable; you cannot use a constant that is declared in another schema.

http://publib.boulder.ibm.com/infocenter/wmbhelp/v6r0m0/index.jsp?topic=/com.ibm.etools.msgbroker.helphome.doc/help_home_msgbroker.htm

mgk

Posted: Tue Feb 26, 2008 6:41 am Post subject:

Padawan

Joined: 31 Jul 2003
Posts: 1642

This is true, but Schema Level FUNCTIONs can be used (called) from another Schema. Therefore, you can define you constants in one Schema, with an accessor "getter" function for each, and simple use the function to get the value from another Schema if you wish...

Regards,
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MGK
The postings I make on this site are my own and don't necessarily represent IBM's positions, strategies or opinions.

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