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Can we assign a OutputRoot to OutputRoot?

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mq_developer

Posted: Wed Sep 03, 2003 2:02 pm Post subject: Can we assign a OutputRoot to OutputRoot?

Voyager

Joined: 18 Feb 2002
Posts: 82

Does MQSI allows to copy a field from OutputRoot just created to the populate the next the field in the OutputRoot Tree?

Something Like

SET OutputRoot.MRM.Temp = 'abc';
SET OutputRoot.MRM.Field1 = OutputRoot.MRM.Temp ;

-- Ram --

Craig B

Posted: Wed Sep 03, 2003 2:22 pm Post subject:

Partisan

Joined: 18 Jun 2003
Posts: 316
Location: UK

Hi,

Yes you can do what you propose in your sample code. The field reference on the RHS of the equals will be evaluated and then either a value, field or subtree copy with occur. There is one potential hazard you need to consider, and this is self referencing. You have to make sure that the field on the LHS of the expression is not a subset of what is on the RHS of the expression. This way you will get into a recursion where what you are copying is modifying at the same time, and this will cause you problems. For example

Code:

SET OutputRoot.MRM.myField = OutputRoot.MRM;

_________________
Regards
Craig

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