[jira] [Commented] (LUCENE-4897) Add a sugar API for traversing categories.

["Shai Erera (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-4897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13619582#comment-13619582 ] 

Shai Erera commented on LUCENE-4897:
------------------------------------

I think that we should use a primitive iterator, e.g. facet collections have IntIterator interface. And so the method should be something like {{IntIterator getChildren(int ordinal)}}?
                
> Add a sugar API for traversing categories.
> ------------------------------------------
>
>                 Key: LUCENE-4897
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4897
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: modules/facet
>    Affects Versions: 4.2
>            Reporter: crocket
>            Priority: Trivial
>
> Mike McCandless said in lucene-java-user mailing list.
> "Maybe we could add some simple sugar APIs?
> Eg something like Collection<CategoryPath> getChildren(int parentOrd)?
>  (Or maybe it returns Iterator<CategoryPath>?)"
> What about Collection<Integer> getChildren(int parentOrd)?
> Integer would be more versatile and can easily be converted to CategoryPath with TaxonomyReader.getPath.

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