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Posted to issues@nifi.apache.org by GitBox <gi...@apache.org> on 2020/09/15 16:57:16 UTC
[GitHub] [nifi] sdairs opened a new pull request #4530: NIFI-5061-NiFi documentation incomplete/wrong for EL hierarchy.
sdairs opened a new pull request #4530:
URL: https://github.com/apache/nifi/pull/4530
Removed references to the old NiFi EL hierarchy and split the new hierarchy out in to its own section. Previous example now referes to the new section.
https://issues.apache.org/jira/browse/NIFI-5061
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[GitHub] [nifi] pvillard31 commented on a change in pull request #4530: NIFI-5061-NiFi documentation incomplete/wrong for EL hierarchy.
Posted by GitBox <gi...@apache.org>.
pvillard31 commented on a change in pull request #4530:
URL: https://github.com/apache/nifi/pull/4530#discussion_r489433534
##########
File path: nifi-docs/src/main/asciidoc/expression-language-guide.adoc
##########
@@ -131,7 +130,19 @@ the Expression Language between delimiters. Therefore, we can use the Expression
mean the same thing. We cannot, however, use `${file name:equals(${uuid})}`, because this results
in `file` and `name` being interpreted as different tokens, rather than a single token, `filename`.
+[[expression-language-hierarchy]]
+=== Expression Langauge Hierarchy
+When using Expression Language to reference a property by name there is a defined hierarchy within which NiFi
+will search for the value.
+The current hierarchy in NiFi is as follows:
+1. Search FlowFile for Attribute/key
+2. Search Process Group for attribute/key
Review comment:
```suggestion
2. Search Process Group Variables for attribute/key
```
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[GitHub] [nifi] asfgit closed pull request #4530: NIFI-5061-NiFi documentation incomplete/wrong for EL hierarchy.
Posted by GitBox <gi...@apache.org>.
asfgit closed pull request #4530:
URL: https://github.com/apache/nifi/pull/4530
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[GitHub] [nifi] asfgit closed pull request #4530: NIFI-5061-NiFi documentation incomplete/wrong for EL hierarchy.
Posted by GitBox <gi...@apache.org>.
asfgit closed pull request #4530:
URL: https://github.com/apache/nifi/pull/4530
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