[jira] [Commented] (LUCENE-5181) Passage knows its own docID

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[jira] [Commented] (LUCENE-5181) Passage knows its own docID

Sebastian Nagel (Jira)

    [ https://issues.apache.org/jira/browse/LUCENE-5181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13750086#comment-13750086 ]

Jon Stewart commented on LUCENE-5181:
-------------------------------------

{quote}
How does highlighting fit into this?
{quote}

1. It's convenient to have the Passage snippet, for showing context around the term matches.

2. It's very unclear how to actually retrieve term matches per doc given a TopDocs result set. This was the subject of recent [mailing list traffic|http://search-lucene.com/m/XhEx62ewjeQ/hits+coordinates&subj=How+to+get+hits+coordinates+in+Lucene+4+4+0], and the PostingsHighlighter was suggested as the efficient way to do this, which led to this JIRA being opened.

               

> Passage knows its own docID
> ---------------------------
>
>                 Key: LUCENE-5181
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5181
>             Project: Lucene - Core
>          Issue Type: Improvement
>    Affects Versions: 4.4
>            Reporter: Jon Stewart
>            Priority: Minor
>
> The new PostingsHighlight package allows for retrieval of term matches from a query if one creates a class that extends PassageFormatter and overrides format(). However, class Passage does not have a docID field, nor is this provided via PassageFormatter.format(). Therefore, it's very difficult to know which Document contains a given Passage.
> It would suffice for PassageFormatter.format() to be passed the docID as a parameter. From the code in PostingsHighlight, this seems like it would be easy.

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