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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2625) IndexReader.termDocs() retrieves no documents
Date Fri, 27 Aug 2010 05:18:54 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12903227#action_12903227
] 

Robert Muir commented on LUCENE-2625:
-------------------------------------

bq. In my opinion, being unpositioned means the user needs to be aware about docs being retrieved
in any order, all that matters after all is to iterate over all documents in the index.

termDocs() is unpositioned, implying you will seek() it yourself with Term/TermEnum

bq. Another question is, if indexReader.termDocs(null) is used, where is it positioned if
nothing was defined in the parameter? Shouldn't it work as termDocs()? It just feels inconsistent
to me.

termDocs(term) is like termDocs() + seek(term), except for the special null case as listed
in the docs (If term is null, then all non-deleted docs are returned with freq=1)

i'm inclined to agree termDocs(null) is inconsistent because it doesnt work like termDocs()
+ seek(null), but instead returns the wacky AllTermsDocs


> IndexReader.termDocs() retrieves no documents
> ---------------------------------------------
>
>                 Key: LUCENE-2625
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2625
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Index
>    Affects Versions: 3.1
>            Reporter: Adriano Crestani
>             Fix For: 3.1
>
>         Attachments: TestTermDocs.java
>
>
> TermDocs object returned by indexReader.termDocs() retrieves no documents, howerver,
the documents are retrieved correctly when using indexReader.termDocs(Term), indexReader.termDocs(null)
and indexSearcher.search(Query).

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