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From "Fabian Hueske (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-4047) Fix documentation about determinism of KeySelectors
Date Thu, 09 Jun 2016 14:07:21 GMT
Fabian Hueske created FLINK-4047:
------------------------------------

             Summary: Fix documentation about determinism of KeySelectors
                 Key: FLINK-4047
                 URL: https://issues.apache.org/jira/browse/FLINK-4047
             Project: Flink
          Issue Type: Bug
          Components: Documentation
    Affects Versions: 1.1.0, 1.0.3
            Reporter: Fabian Hueske
             Fix For: 1.1.0, 1.0.3


KeySelectors must return deterministic keys, i.e., if invoked multiple times on the same object,
the returned key must be the same.

The documentation about this aspect is broken ("The key can be of any type and be derived
from arbitrary computations.").

We need to fix the JavaDocs of the {{KeySelector}} interface and the web documentation (https://ci.apache.org/projects/flink/flink-docs-master/apis/common/index.html#specifying-keys).



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