Benedict created CASSANDRA-14588:
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Summary: Unfiltered.isEmpty conflicts with Row extends
AbstractCollection.isEmpty
Key: CASSANDRA-14588
URL: https://issues.apache.org/jira/browse/CASSANDRA-14588
Project: Cassandra
Issue Type: Bug
Reporter: Benedict
Assignee: Benedict
Fix For: 4.0, 3.0.x, 3.11.x
The isEmpty() method’s definition for a Row is incompatible with that for a
Collection. The former can return false even if there is no ColumnData for the
row (i.e. the collection is of size 0).
This currently, by chance, doesn’t cause us any problems. But if we ever pass
a Row as a Collection to a method that invokes isEmpty() and then expects (for
correctness) that the _collection_ portion is not empty, it will fail.
We should probably have an asCollection() method to obtain a collection from a
Row, and not implement Collection directly.
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