[
https://issues.apache.org/jira/browse/LUCENE-2892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Robert Muir reassigned LUCENE-2892:
-----------------------------------
Assignee: Robert Muir
> Add QueryParser.newFieldQuery
> -----------------------------
>
> Key: LUCENE-2892
> URL: https://issues.apache.org/jira/browse/LUCENE-2892
> Project: Lucene - Java
> Issue Type: Improvement
> Components: QueryParser
> Reporter: Robert Muir
> Assignee: Robert Muir
> Fix For: 4.0
>
> Attachments: LUCENE-2892.patch
>
>
> Note: this patch changes no behavior, just makes QP more subclassable.
> Currently we have Query getFieldQuery(String field, String queryText, boolean
> quoted)
> This contains very hairy methods for producing a query from QP's analyzer.
> I propose we factor this into newFieldQuery(Analyzer analyzer, String field,
> String queryText, boolean quoted)
> Then getFieldQuery just calls newFieldQuery(this.analyzer, field, queryText,
> quoted);
> The reasoning is: it can be quite useful to consider the double quote as more
> than phrases, but a "more exact" search.
> In the case the user quoted the terms, you might want to analyze the text
> with an alternate analyzer that:
> doesn't produce synonyms, doesnt decompose compounds, doesn't use
> WordDelimiterFilter
> (you would need to be using preserveOriginal=true at index time for the WDF
> one), etc etc.
> This is similar to the way google's double quote operator works, its not
> defined as phrase but "this exact wording or phrase".
> For example compare results to a query of tests versus "tests".
> Currently you can do this without heavy code duplication, but really only if
> you make a separate field (which is wasteful),
> and make your custom QP lie about its field... in the examples I listed above
> you can do this with a single field, yet still
> have a more exact phrase search.
--
This message is automatically generated by JIRA.
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org
