Using the Implicit Context Load feature - 8.0

Data Integration Job Examples

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Design and Development > Designing Jobs
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Job parameterization based on context variables enables you to orchestrate and execute your Jobs in different contexts or environments. You can define the values of your context variables when creating them, or load your context parameters dynamically, either explicitly or implicitly, when your Jobs are executed.

Note: When loading context parameters dynamically, the parameter values will be loaded from the specified file or database and the parameter values statically defined in Talend Studio, or in Talend Management Console in the case of Talend Cloud context parameters, will not take effect.

The use case below describes how to use the Implicit Context Load feature of your Talend Studio to load context parameters dynamically at the time of Job execution.

The Job in this use case is composed of only two components. It will read employees data stored in two MySQL databases, one for testing and the other for production purposes. The connection parameters for accessing these two databases are stored in another MySQL database. When executed, the Job loads these connection parameters dynamically to connect to the two databases.