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| Ashok Kumar |
 Posted: Wed Sep 18, 2013 3:57 am Post subject: Dyanamic mapping with DFDL in MB8 |
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Acolyte
Joined: 01 Jul 2013
Posts: 53
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Hai WMB Developers,
Is it possible to use dyanamic mapping using DFDL in MB8? |
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| lancelotlinc |
| Posted: Wed Sep 18, 2013 3:59 am Post subject: Re: Dyanamic mapping with DFDL in MB8 |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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| Ashok Kumar wrote: |
Hai WMB Developers,
Is it possible to use dyanamic mapping using DFDL in MB8? |
Hai !
Sure you can do anything you want. Please point out the documentation which supports your assertion.
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| Ashok Kumar |
| Posted: Wed Sep 18, 2013 4:12 am Post subject: |
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Acolyte
Joined: 01 Jul 2013
Posts: 53
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Thanks for the reply...!
We already done a scenario on dynamic mapping with WTX node but we are not familiar with DFDL parser.How can we achieve the dynamic mapping using DFDL..?
Waiting for a response  |
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| lancelotlinc |
| Posted: Wed Sep 18, 2013 4:15 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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| Ashok Kumar |
| Posted: Wed Sep 18, 2013 4:22 am Post subject: |
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Acolyte
Joined: 01 Jul 2013
Posts: 53
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Thanks for u r reply...
What i wanted to say is that I already done a flow on DFDL using Mapping node but I got a requirement on Dynamic mapping with DFDL.
Need your help in moving forward.. |
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| kimbert |
| Posted: Wed Sep 18, 2013 4:23 am Post subject: |
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Jedi Council
Joined: 29 Jul 2003
Posts: 5542
Location: Southampton
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Please define what you mean by 'dynamic mapping'.
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| lancelotlinc |
| Posted: Wed Sep 18, 2013 4:24 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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| mqjeff |
| Posted: Wed Sep 18, 2013 4:33 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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DFDL doesn't do any mapping at all.
Statically or dynamically.
Maybe you should consult the documentation on the Mapping node. |
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| Ashok Kumar |
| Posted: Wed Sep 18, 2013 4:36 am Post subject: |
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Acolyte
Joined: 01 Jul 2013
Posts: 53
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We already done a scenario on dynamic mapping with WTX node using Compute node..how can we achieve the same scenario using
DFDL. |
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| lancelotlinc |
| Posted: Wed Sep 18, 2013 4:39 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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| Ashok Kumar wrote: |
We already done a scenario on dynamic mapping with WTX node using Compute node..how can we achieve the same scenario using
DFDL. |
mqjeff has great advice ... Maybe you should consult the documentation.
Do you have a coach ? Do you have a mentor ? Have you attended training ?
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| Vitor |
| Posted: Wed Sep 18, 2013 4:43 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Ashok Kumar wrote: |
We already done a scenario on dynamic mapping with WTX node using Compute node..how can we achieve the same scenario using
DFDL. |
And as others have said:
a) define what you mean by "dynamic mapping", if necessary by refering to the WTX artifacts you've used in the WTX solution
b) WTX is a mapping engine & self contained software solution; DFDL is a data description launguage which WMB uses for one of it's parsers. WTX has more capabilities than WMB (which is way IBM still makes money selling it in addition to WMB) so it's not a direct comparison as DFDL doesn't do mapping. So is your question "how do I perform a WTX style dyanmic mapping using WMB artifacts like the Mapping & Compute nodes?". Because if it is, the answer is "by creating a mapping or writing code".
Be specific.
Also explain why, if you have WTX, you're not leveraging that very expensive software to do this.
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Last edited by Vitor on Wed Sep 18, 2013 4:46 am; edited 1 time in total |
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| mqjeff |
| Posted: Wed Sep 18, 2013 4:45 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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| Ashok Kumar wrote: |
We already done a scenario on dynamic mapping with WTX node using Compute node..how can we achieve the same scenario using
DFDL. |
You can't.
DFDL DOES NOT DO ANY MAPPING.
IT IS NOT A MAPPING TOOL.
IT IS A MODELLING TOOL.
You are asking "How do I drive on the highway using a chicken".
Chickens aren't automobiles. |
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| kimbert |
| Posted: Wed Sep 18, 2013 6:38 am Post subject: |
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Jedi Council
Joined: 29 Jul 2003
Posts: 5542
Location: Southampton
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@Ashok: WMB v8 can almost certainly do what you want. But you do need to describe what you want to do. We don't know what you mean by 'dynamic mapping'.
mqjeff is trying to point out that DFDL is a language for describing data formats. It does not specify how to map one data format to another data format.
In WTX, you can write a single map that
a) interprets the input data format
b) maps the fields to the output format
c) writes the output data format
In WMB or IIB you do the same thing in multiple steps, like this:
a) parse the data using the DFDL domain. This creates a message tree ( InputRoot )
b) map the logical structure of the data from InputRoot to OutputRoot. You can do this using a graphical mapping tool, or Java, or ESQL or PHP, or XSLT.
c) convert the output message tree ( OutputRoot ) to the output data format. This output format might be XML, or JSON, or another DFDL format that is described by a separate DFDL schema.
So in WMB/IIB we make a clear distinction between
1. converting the data format to/from a tree ( parsing ) and
2. converting one tree structure to another ( mapping )
Clear enough?
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