Tuesday, June 20, 2023

Camunda conditional flow and Connector task

In Camunda BPM, a conditional flow with a connector behaves in a specific way. When a conditional flow with a connector is encountered during process execution, Camunda will wait for the connector to finish executing before evaluating the condition and determining the next path to take.


Here's a step-by-step explanation of how it works:


Process Execution Reaches the Conditional Flow with Connector: During the execution of a process instance, when it reaches a conditional flow with a connector, the execution pauses at that point.


Connector Execution: The connector associated with the conditional flow is then executed. A connector is typically used to integrate with external systems or perform some complex logic. It could be a REST call, a database operation, a message queue interaction, or any other custom logic implemented using connectors in Camunda.


Connector Execution Completion: Once the connector execution is complete, the process execution resumes.


Condition Evaluation: After the connector execution, Camunda evaluates the condition associated with the conditional flow. The condition could be expressed using Camunda's Expression Language or a script. The condition determines which outgoing path the process should take based on the connector's result or other process variables.


Next Path Determination: Based on the evaluation of the condition, Camunda determines the next path to be taken in the process. If the condition evaluates to true, the process follows the outgoing path connected to the conditional flow with a "true" condition. If the condition evaluates to false, the process follows the outgoing path connected to the conditional flow with a "false" condition.


By waiting for the connector execution to finish before evaluating the condition, Camunda ensures that any data or results obtained from the connector are available for the condition evaluation. This allows for dynamic and data-driven routing within a BPMN process.

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