Implement Singleton Pattern in my Orchestration

Question

Hi - this is my Orchestration. My have a huge file with multiple records in it. My pipeline is debatching it and sending each record as individual file which is creating multiple Orchestration instances.

I want to create a Singleton Orchestration, where all these files will be looped in one orchestration instance and sent out. How can I achieve this ? Please any one provide me detailed steps to achieve this .

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MBH

Answer 1

Hi,

You are going to need aggregation pattern, check the below articles for further pointers:

• MSDN 
• ObjectSharp 
• CloudCasts: Alan Smith  - Service Aggregator
• BizBert  - Including Removal of Duplicates
• BizTalk Server Pattern Wizard  - Asysc Aggregation
• Bram Veldhoen  - ESB Toolkit
• https://social.msdn.microsoft.com/Forums/en-US/d5b7320a-5a1a-4b8a-a565-495099716214/assemble-multiple-messages-into-one-flat-file-as-output?forum=biztalkgeneral
• Biztalk aggregation
• Flat file debatching/rebatching
• Messaging-Database Aggregator Pattern

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Regards Pushpendra Singh : Please mark the reply as answer or vote it up, as deemed fit.

Answer 2

why what is difference between Singleton ? Aggregation ? Convoy patterns ?

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MBH

Answer 3

Hi, You can make use scatter and gather pattern with self correlating port. The way to use it is to create a receive self-correlating direct bound port in orchestration A. In Orchestration B declare a port as a Send Port Orchestration Parameter of the same port-type as defined in orchestration A. This declaration will create a logical port on your orchestration designer surface with the direction flipped. You can call receive pipeline in orchestration A to debatch the messages. When orchestration B is called with the ‘Start Orchestration’ shape, pass the port as a parameter to orchestration B. Orchestration B then does whatever business logic it needs to and then can send a message on the port passed in as a parameter. The message will be sent to the self-correlating port of the instance of orchestration A that originally started orchestration B. Refer: https://prashantbiztalkblogs.wordpress.com/2015/03/05/implementing-scatter-gather-pattern-in-biztalk-using-self-correlation/ and http://geekswithblogs.net/synBoogaloo/archive/2005/09/23/54705.aspx

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Rachit Sikroria (Microsoft Azure MVP)

Answer 4

the main thing here I want to implement is just 1 orchestration instance...I dont want when the file debatches creates 100s of instances

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MBH

Answer 5

1) what should be my Correlation set and correlation type on Receive and follow side ?

2) what should I write expression in my loop ?

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MBH

Answer 6

Hi jaguarjags, at this point, I recommend you put aside these various attempts and open a new thread restating your basic business scenario.  This and some other paths are taking you further from a viable solution*.  Perhaps some new perspectives will help.

*If this is related to the HL7 threads. If not, please disregard.

Answer 7

Isn't this a new thread ? where do you want me to post new threads and explain business scenarios ?

Whether related to HL7, EDI, FF, XMLs  ??    everything is related to BizTalk

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MBH

Answer 8

Hi Jaguarjags,

If you are still implementing HL7 scenario...as Johns suggested...please open a singular thread posting a completed and comprehensive scenario so that our experts help you out..

Regards.

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Mandar Dharmadhikari