[jboss-user] [jBPM] - Access variables bound to process instance during its lifecyle

[Minh Hoang TO]

Minh Hoang TO [https://community.jboss.org/people/hoang_to] created the discussion

"Access variables bound to process instance during its lifecyle"

To view the discussion, visit: https://community.jboss.org/message/818949#818949

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Having look at the API of JBPM, i see that while triggering a process via engine session, it is possible to parse variables

StatefulKnowledgeSession session = ...
Map<String, Object> params = ....
session.startProcess("process_id", params)

Objects stored on that map, which is associated with a process instance, are *somehow accessible* via contextual process instance.

My question is: What is the canonical way to read/write those variables during process instance lifecycle (ex: in order to communicate with external systems)
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