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| Java vs ESQL in WMB |
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| gajanan_matre |
 Posted: Wed May 08, 2013 1:56 am Post subject: Java vs ESQL in WMB |
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Newbie
Joined: 08 May 2013
Posts: 1
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| Can someone tell me the tasks which are specific to java and which are to ESQL? |
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| anurag.munjal |
| Posted: Wed May 08, 2013 2:00 am Post subject: |
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Voyager
Joined: 08 Apr 2012
Posts: 97
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It clearly depends on the need of your message flow!
ESQL can carry out most of the common stuff which you want to carry out using WMB.  |
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| lancelotlinc |
| Posted: Wed May 08, 2013 3:04 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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ESQL Compute node strong point is being able to walk the message tree more easily than a JCN. So if your logic needs to aggressively query, read and manipulate the logical message tree, a Compute node is a good choice. You can of course access Java from an ESQL Compute node also.
A JCN strong point is native access to the JRE and third-party jars without too much hubub.
There are many other Compute nodes also: .Net, PHP, and XSL Transform to name the favorites.
None of the message flow compute nodes are mutually exclusive. If your boss is asking you to choose one to use exclusively, tell him or her that he or she is un-knowledgable about the product.
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| kimbert |
| Posted: Wed May 08, 2013 3:11 am Post subject: |
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Jedi Council
Joined: 29 Jul 2003
Posts: 5542
Location: Southampton
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Thanks lancelotinc : that's nicely put.
| Quote: |
| There are many other Compute nodes also: .Net, PHP, and XSL Transform to name the favorites |
You forgot(?) to mention the Mapping node. It is often a very good choice, especially for users on v8 or later. |
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| lancelotlinc |
| Posted: Wed May 08, 2013 3:19 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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| kimbert wrote: |
Thanks lancelotinc : that's nicely put.
| Quote: |
| There are many other Compute nodes also: .Net, PHP, and XSL Transform to name the favorites |
You forgot(?) to mention the Mapping node. It is often a very good choice, especially for users on v8 or later. |
Your welcome kimbert. Thanks for the complement.
While there have been some marvelous work done on the mapping node in V8, I'm still a little stand-offish regarding it. For XML-to-XML transformations, I find the mapping node to be awesome, especially if the format of the data fields can map directly into the target structure. For other more complex logic which I often deal with in the SOAP Web Service realm, calling multiple downstream providers, I find the ability to change the flow of logic more applicable to ESQL rather than mapping node. Complex logic is more convenient for me to implement in ESQL than mapping node (or mapping node calling an ESQL subroutine).
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| Vitor |
| Posted: Wed May 08, 2013 5:15 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| lancelotlinc wrote: |
| I find the ability to change the flow of logic more applicable to ESQL rather than mapping node. Complex logic is more convenient for me to implement in ESQL than mapping node (or mapping node calling an ESQL subroutine). |
This is another important point over and above the very well made points above, as the resource base of the site is a consideration. If you're a shop with deep Java skills, you may be more inclined to use a JCN where a Compute node is perhaps more technically matched.
Or you may not. You might equally feel that the technical superiority of the Compute node for your requirements is sufficient to get ESQL training.
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