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Message
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| touchofcrypticthunder |
 Posted: Sat Aug 11, 2012 7:12 am Post subject: using namespace definitions from library across ESQL schema |
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Apprentice
Joined: 08 Jul 2009
Posts: 30
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I am working on Message Broker V7. I am facing an issue to access namespace definitions from common library across ESQL schema.
Let us assume, we have all the namespace definitions in Namespace.esql defined under schema 'common'. I would like to access these namespace definitions in message flow ESQL modules defined under different schemas say for ex, default schema. I tried using PATH clause which did not help.
I would like to know if there is a way to access namespace definitions across schema OR if this is not supported in Message Broker at all. Your help is greatly appreciated. |
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| fjb_saper |
| Posted: Sat Aug 11, 2012 8:43 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20768
Location: LI,NY
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It should be possible in a kind of roundabout way.
Store all the namespace declarations as CHAR with a nickname
Have a simple function that returns the value when called for the nickname
Then in your code
| Code: |
DECLARE myns CHARACTER CALL getns('myns');
DECLARE nsmyns NAMESPACE myns; |
This is the same kind of workaround I used with the ns declared in a UDP.
Hope this helps some 
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| touchofcrypticthunder |
| Posted: Sat Aug 11, 2012 10:38 am Post subject: |
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Apprentice
Joined: 08 Jul 2009
Posts: 30
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Thanks for the workaround solution. Below is the solution which I have implemented.
Following is the code to declare and return namespace as character:
BROKER SCHEMA common
CREATE FUNCTION getNamespace(IN inVal CHARACTER) RETURNS CHARACTER
BEGIN
DECLARE namespaceStorage ROW;
SET namespaceStorage.List[] = LIST { ROW('nsSoapEnv' AS nsName, 'http://schemas.xmlsoap.org/soap/envelope/' AS nsValue),
ROW('nsWorkOrd' AS nsName, 'http://tbccorp.com/Services/WorkOrderMgt/v1/' AS nsValue)
};
RETURN (THE(SELECT ITEM NS.nsValue FROM namespaceStorage.List[] AS NS WHERE NS.nsName = inVal));
END;
Following is the code to get namespace as CHARACTER and use for constructing output message:
DECLARE nsSoapChar CHARACTER common.getNamespace('nsSoapEnv');
DECLARE nsWorkOrdChar CHARACTER common.getNamespace('nsWorkOrd');
DECLARE nsSoap NAMESPACE nsSoapChar;
DECLARE nsWorkOrd NAMESPACE nsWorkOrdChar;
SET OutputRoot.XMLNSC.nsSoap:Envelope.nsSoap:Body.nsWorkOrd:Employee.Name = 'x'; |
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| touchofcrypticthunder |
| Posted: Sat Aug 11, 2012 10:42 am Post subject: |
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Apprentice
Joined: 08 Jul 2009
Posts: 30
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| Please suggest if your solution is different from the one mentioned below. |
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| mqjeff |
| Posted: Sat Aug 11, 2012 11:27 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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I'd think yo could refer to the namespace directly using
| Code: |
| common.nsSoapCharacter |
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i.e. something like
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SET OutputRoot.XMLNSC.{common.nsSoap}:Envelope.{common.nsSoap}:Body.{common.nsWorkOrd}:Employee.Name = 'x'; |
but I've not run experiments. |
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| touchofcrypticthunder |
| Posted: Sat Aug 11, 2012 7:44 pm Post subject: |
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Apprentice
Joined: 08 Jul 2009
Posts: 30
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| I have tried this option before. It does not work and it throws exception during deployment saying the reference to the namespace is not defined. |
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