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| klabran |
 Posted: Thu Jan 20, 2005 9:05 am Post subject: accounting for xml fields not present? |
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Master
Joined: 19 Feb 2004
Posts: 259
Location: Flagstaff AZ
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I have a filter node that is constructing an email using the xml data coming into it.
I am using a char to create my body of the email like....
set x = x || 'Tag Name1: ' || xmlincoming.tag1 || NewLineFeed;
set x = x || 'Tag Name2: ' || xmlincoming.tag2 || NewLineFeed;
set mail.body = x;
The xml data has many tags that may not be present and this is blowing up the node.
How can I easily adjust for this?
I thought about wrapping everything
| Code: |
| if xmlincoming.tag2 is not null then |
but I have enough tags that this is not a desirable approach.
I also thought about perhaps catching the error and spitting out '' for these missing fields in the email. Unfortunately, I'm not sure how to even do this at this point but it sounds good.
What / how would you handle this?
Kevin |
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| jefflowrey |
| Posted: Thu Jan 20, 2005 9:12 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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I'd use the COALESCE function.
Also, you should not be putting complex logic into filter nodes, and you should not be using a filter node to "construct" data. You will have poor performance.
Use a compute node to perform your logic, and a filter node to check the results.
_________________
I am *not* the model of the modern major general. |
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| klabran |
| Posted: Thu Jan 20, 2005 9:17 am Post subject: |
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Master
Joined: 19 Feb 2004
Posts: 259
Location: Flagstaff AZ
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Thanks I will take a look at COALESCE. On the filter node I misspoke. The email is being created in a compute node.
Kevin |
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| EddieA |
| Posted: Thu Jan 20, 2005 10:03 am Post subject: |
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Jedi
Joined: 28 Jun 2001
Posts: 2453
Location: Los Angeles
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| Quote: |
| I have a filter node that is constructing an email using the xml data coming into it. |
That isn't going to work. You cannot change the data, or construct new trees in a Filter.
Cheers,
_________________
Eddie Atherton
IBM Certified Solution Developer - WebSphere Message Broker V6.1
IBM Certified Solution Developer - WebSphere Message Broker V7.0 |
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| kirani |
| Posted: Thu Jan 20, 2005 11:41 pm Post subject: |
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Jedi Knight
Joined: 05 Sep 2001
Posts: 3779
Location: Torrance, CA, USA
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I don't remember this, but can't you update/create Environment Tree in a Filter node?
_________________
Kiran
IBM Cert. Solution Designer & System Administrator - WBIMB V5
IBM Cert. Solutions Expert - WMQI
IBM Cert. Specialist - WMQI, MQSeries
IBM Cert. Developer - MQSeries
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| jefflowrey |
| Posted: Fri Jan 21, 2005 5:43 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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| kirani wrote: |
| I don't remember this, but can't you update/create Environment Tree in a Filter node? |
I don't remember if that's true either.
But even if it was, I still wouldn't do it.
_________________
I am *not* the model of the modern major general. |
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| JT |
| Posted: Fri Jan 21, 2005 8:12 am Post subject: |
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Padawan
Joined: 27 Mar 2003
Posts: 1564
Location: Hartford, CT.
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| Quote: |
| I don't remember this, but can't you update/create Environment Tree in a Filter node? |
Absolutely you can. |
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| kirani |
| Posted: Sun Jan 23, 2005 2:46 pm Post subject: |
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Jedi Knight
Joined: 05 Sep 2001
Posts: 3779
Location: Torrance, CA, USA
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| EddieA wrote: |
You cannot change the data, or construct new trees in a Filter.
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Except Environment tree.
_________________
Kiran
IBM Cert. Solution Designer & System Administrator - WBIMB V5
IBM Cert. Solutions Expert - WMQI
IBM Cert. Specialist - WMQI, MQSeries
IBM Cert. Developer - MQSeries
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