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From "David Smiley (JIRA)" <>
Subject [jira] [Updated] (LUCENE-4388) ShapeMatcher and ShapeValues
Date Fri, 14 Sep 2012 15:18:08 GMT


David Smiley updated LUCENE-4388:

    Attachment: LUCENE-4388_ShapeValues_and_ShapeMatcher.patch
> ShapeMatcher and ShapeValues
> ----------------------------
>                 Key: LUCENE-4388
>                 URL:
>             Project: Lucene - Core
>          Issue Type: New Feature
>          Components: modules/spatial
>            Reporter: David Smiley
>         Attachments: LUCENE-4388_ShapeValues_and_ShapeMatcher.patch
> This patch provides two key interfaces: ShapeMatcher and ShapeValues.  The ShapeMatcher
concept is borrowed from [~ryantxu]'s JtsGeoStrategy which has a similar GeometryTester. 
ShapeValues is basically a ValueSource/FunctionValues for shapes.  This isn't working; I didn't
modify any existing classes.
> I haven't completely thought this through but a SpatialStrategy might expose a makeShapeValues(IndexReader)
and/or makeCenterShapeValues(IndexReader) (the latter is the center points of indexed data).
 A generic Distance ValueSource could easily be implemented in terms of makeCenterShapeValues().
 And a strategy could support any query shape simply by implementing makeShapeValues().
> I've been thinking about how the API handles strategies supporting indexing multiple
shapes and I wonder if that could happen simply via a new MultiShape<Shape>.

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