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https://issues.apache.org/jira/browse/LUCENE-4897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13622032#comment-13622032
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Shai Erera commented on LUCENE-4897:
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I looked at other IntIterator impls and none throw NoSuchElementException, so I
thought it's best to follow. Also, since it returns ordinals, it's kind of ok
to return INVALID_ORDINAL. I wished that we had a simple IntIterator interface
with only next() for this case...
I don't mind throwing it though. What do you think?
> 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
> Labels: newdev
> Attachments: LUCENE-4897.patch
>
>
> 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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