AxelSync commented on a change in pull request #3633: NIFI-6523 MergeRecords
properties should accept expression language variables
URL: https://github.com/apache/nifi/pull/3633#discussion_r310470545
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File path:
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/MergeRecord.java
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@@ -151,7 +153,7 @@
.description("If specified, two FlowFiles will be binned together only
if they have the same value for "
+ "this Attribute. If not specified, FlowFiles are bundled by the
order in which they are pulled from the queue.")
.required(false)
- .expressionLanguageSupported(ExpressionLanguageScope.NONE)
+
.expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
Review comment:
It is done in the same way in this processor's brother `MergeContent`, I
think it could be useful to create different bins based on different attributes
at the same time, without having to add an `UpdateAttribute` node before the
`MergeRecord`.
Whatever the case, I also think it would be more intuitive for the user to
have similar processors to be aligned
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