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cps-datastax_192628 asked alexandre.dutra answered

Returning a Stream from DAO using Java driver 4.7.1

We used to use the java driver 3.x and I'm migrating to 4.x, I really like the new API btw.

Something that has confused me though is that in a @Dao I can @Select a PagingIterable<Foo> but not a Stream<Foo>. This seems a bit strange because PagingIterable exposes a spliterator so I can convert it into a stream with StreamSupport.stream(page.spliterator(), false). If its this easy to implement why doesn't the cassandra driver support returning streams, I feel like I might be missing something subtle.


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alexandre.dutra answered

Thanks for the feedback, this is very much appreciated! I think your idea is a great enhancement for the mapper, so I logged JAVA-2830 for that.

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