Talend Data Catalog (TDC) - Harvesting Talend Jobs that use the Implicit Context Load feature

In Talend Jobs, it is possible to use the implicit context load feature that allows context variables to be dynamically loaded at run time, thus not providing any value for these variables in the Job itself. For more information, see Using the Implicit Context Load feature in the Talend Help Center.

 

A very simple Job using this feature would look like the one below.

 

job.PNGJob design

 

job01.PNGDatabase settings with context variables

 

job02.PNGContext settings: no values given

job03.PNGJob settings with focus on implicit context load

ContextFile.PNGContext file content

When configuring the model for this Job in Talend Data Catalog, you must provide the context file location in the Context File Directory parameter to allow for the bridge to resolve context variables.

 

modelSetting.pngModel settings

After importing the model, you can see that the DB connection is resolved with expected values.

 

Connection.PNGConnection in the job model

And you end up with proper stitching.

 

stitching.PNGStitching completed

If the Context File Directory parameter is omitted or wrongly set, the Job model will look as follows, and no stitching will be possible.

 

wrongSetting.PNGJob model without proper context file location

 

Version history
Revision #:
6 of 6
Last update:
‎10-23-2018 03:55 PM
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