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Posted to issues@nifi.apache.org by "Koji Kawamura (JIRA)" <ji...@apache.org> on 2016/07/31 08:21:20 UTC

[jira] [Created] (NIFI-2442) Support Expression Language evaluation at onPropertyModified

Koji Kawamura created NIFI-2442:
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             Summary: Support Expression Language evaluation at onPropertyModified
                 Key: NIFI-2442
                 URL: https://issues.apache.org/jira/browse/NIFI-2442
             Project: Apache NiFi
          Issue Type: Improvement
          Components: Core Framework
            Reporter: Koji Kawamura


Some components have to eagerly get property value change, and do some stuff. Sometimes, the target properties support Expression Language (EL).

However, since current onPropertyModified method only passes String representation of property value, we can't evaluate EL in that method directly.

It would be useful if we can use subject-less EL functions (i.e without incoming FlowFile) at onPropertyModified, especially with Variable Registry.



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