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| akidase |
 Posted: Wed Mar 05, 2014 12:08 am Post subject: Message Model - WSDLs Create and re-create? |
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Centurion
Joined: 10 Jan 2011
Posts: 124
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Although the WSDL doesn't change, the underlying schemas frequently change in my project.
I am using Message Broker v8. Should I generate the Message Model by selecting WSDL that will have the schemas or ? and expect it to get overridden or ?
Please let me know the easiest way to go about this.
Please help.  |
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| Gralgrathor |
| Posted: Wed Mar 05, 2014 12:46 am Post subject: |
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Master
Joined: 23 Jul 2009
Posts: 297
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Importing the entire WSDL is a good way to produce changes in your message model that go *unnoticed*, in my opinion. You can miss out on important changes to mappings, for one thing. If importing a single XSD suffices, then that's the way I'd go.
On the other end, I would work on producing a message model that does not *require* as many changes during the project. A well thought-out canonical model, that encompasses as many as possible projected future changes.
Remember: change is never a good thing.
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A measure of wheat for a penny, and three measures of barley for a penny; and see thou hurt not the oil and the wine. |
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| mqjeff |
| Posted: Wed Mar 05, 2014 5:38 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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Change is a great thing. You need to get used to making changes rapidly, quickly, but SENSIBLY.
Canonical data models are excellent sources of documentation, and a great way to explain the contents of data dictionaries.
It's a terrible idea to pass business objects based on a canonical data model across the wire.
Or, why CORBA is still a bad idea. |
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| Gralgrathor |
| Posted: Wed Mar 05, 2014 5:44 am Post subject: |
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Master
Joined: 23 Jul 2009
Posts: 297
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| mqjeff wrote: |
| Change is a great thing. |
I was thinking of "Wait, before you deploy that, I just thought of another neat thing to have in our contract!"
| mqjeff wrote: |
| It's a terrible idea to pass business objects based on a canonical data model across the wire. |
I think I know what you mean, but I'd still like to hear you explain it. Would you?
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A measure of wheat for a penny, and three measures of barley for a penny; and see thou hurt not the oil and the wine. |
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| Vitor |
| Posted: Wed Mar 05, 2014 5:47 am Post subject: Re: Message Model - WSDLs Create and re-create? |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| akidase wrote: |
| Please let me know the easiest way to go about this. |
The easiest way is to select the WSDL & hope it all works.
The best way is to combine the refresh of the message model with a robust and ideally automated regression test procedure to ensure that the only changes are the ones you expect & none that you don't (synergistic errors from the change).
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| mqjeff |
| Posted: Wed Mar 05, 2014 5:48 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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| Gralgrathor wrote: |
| I think I know what you mean, but I'd still like to hear you explain it. Would you? |
Not without a beer in front of me. |
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| Gralgrathor |
| Posted: Wed Mar 05, 2014 6:31 am Post subject: |
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Master
Joined: 23 Jul 2009
Posts: 297
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I suppose that's not just reasonable but highly desirable from a certain perspective. For me it's a Talisker. Too bad it's only Wednesday.
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A measure of wheat for a penny, and three measures of barley for a penny; and see thou hurt not the oil and the wine. |
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| mqjeff |
| Posted: Wed Mar 05, 2014 6:36 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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| Gralgrathor wrote: |
I suppose that's not just reasonable but highly desirable from a certain perspective. For me it's a Talisker. Too bad it's only Wednesday. |
Talisker is nice, if one can't find a good bourbon. |
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