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Dec 4, 2009, 8:20 AM
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[jira] Assigned: (LUCENE-2110) Change FilteredTermsEnum to work like Iterator, so it is not positioned and next() must be always called first. Remove empty()
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[ https://issues.apache.org/jira/browse/LUCENE-2110?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Uwe Schindler reassigned LUCENE-2110:
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Assignee: Uwe Schindler
> Change FilteredTermsEnum to work like Iterator, so it is not positioned and next() must be always called first. Remove empty()
> ------------------------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-2110
> URL: https://issues.apache.org/jira/browse/LUCENE-2110
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Affects Versions: Flex Branch
> Reporter: Uwe Schindler
> Assignee: Uwe Schindler
> Fix For: Flex Branch
>
> Attachments: LUCENE-2110.patch
>
>
> FilteredTermsEnum is confusing as it is initially positioned to the first term. It should instead work like an uninitialized TermsEnum for a field before the first call to next() or seek().
> Also document that not all FilteredTermsEnums may implement seek() as eg. NRQ or Automaton are not able to support this. Seeking is also not needed for MTQ at all, so seek can just throw UOE.
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