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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » how to find a certain element?

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gechu
PostPosted: Thu Nov 10, 2011 7:07 am    Post subject: how to find a certain element? Reply with quote

Apprentice

Joined: 27 Feb 2008
Posts: 48
Hi,

I have a tree structure that may look like this

Code:

A
A
A B A
A   A
A   A
A   A B A
A
A B A B A
    A   A
    A   A
    A   A B A
    A   A   A
    A
    A B A B A



Each "A" contains one element named <partNo>, and I don´t know how many levels any "A" has. The unpredictible structure above is already built in my OutputRoot.

PROBLEM
I need to locate a certain "A" where <partNo> equals a certain value because I need to add more elements to that particular "A".

Here I´ve come up with these perhaps (im)possible solutions:

1. Use SELECT to locate relevant "A" - but can SELECT return a dynamic field reference to my "A" of interest?

2. Use a recursive function which traverses the entire OutpurRoot tree.

3. ?

Thanks,
Erik
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kimbert
PostPosted: Thu Nov 10, 2011 7:41 am    Post subject: Reply with quote

Jedi Council

Joined: 29 Jul 2003
Posts: 5542
Location: Southampton
Sounds like a job for a JavaCompute node with some XPath.
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gechu
PostPosted: Tue Nov 15, 2011 6:04 am    Post subject: Reply with quote

Apprentice

Joined: 27 Feb 2008
Posts: 48
Thanks for the feedback. Not very comfortable with java in the broker so I went the ESQL recursive function path.

/Erik
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