Andy LoPresto created NIFI-1670:
-----------------------------------
Summary: Expression Language documentation should be clarified for
isEmpty and allAttributes
Key: NIFI-1670
URL: https://issues.apache.org/jira/browse/NIFI-1670
Project: Apache NiFi
Issue Type: Improvement
Components: Documentation & Website
Affects Versions: 0.6.0
Reporter: Andy LoPresto
Priority: Minor
The documentation for {{isEmpty}} and {{allAttributes}} should be reviewed for
correctness and clarity as pointed out by a member of the mailing list.
>From the mailing list:
From: Paul Nahay <[email protected]>
Subject: Errors in your Documentation
Date: March 22, 2016 at 5:52:10 AM PDT
To: [email protected]
Cc: Jonathan Wood <[email protected]>
Reply-To: [email protected]
Reply-To: Paul Nahay <[email protected]>
I'm looking at:
https://nifi.apache.org/docs/nifi-docs/html/expression-language-guide.html
isEmpty
Description: The isEmpty function returns true if the Subject is null or
contains only white-space (new line, carriage return, space, tab), false
otherwise.
This logically implies that isEmpty returns FALSE if the Subject contains NO
CHARACTERS AT ALL (not even white-space). This makes no sense at all.
allAttributes
Description: Checks to see if any of the given attributes, match the given
condition.
Hopefully you actually mean "all", not "any".
What's funny here is that THESE TWO functions were the ones I initially needed,
and your documentation has errors for BOTH of them. I'll expect then to find
more errors in your documentation, and will report them to you as I find them.
Feedback confirming the errors will be appreciated.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
