David Smiley created LUCENE-5118:
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Summary: spatial strategy- add multiplier to
makeDistanceValueSource()
Key: LUCENE-5118
URL: https://issues.apache.org/jira/browse/LUCENE-5118
Project: Lucene - Core
Issue Type: New Feature
Components: modules/spatial
Reporter: David Smiley
Assignee: David Smiley
Fix For: 4.5
SpatialStrategy has this abstract method:
{code}
/**
* Make a ValueSource returning the distance between the center of the
* indexed shape and {@code queryPoint}. If there are multiple indexed shapes
* then the closest one is chosen.
*/
public abstract ValueSource makeDistanceValueSource(Point queryPoint);
{code}
I'd like to add another argument {{double multiplier}} that is internally
multiplied to the result per document. It's a convenience over having the user
wrap this with another ValueSource, and it'd be faster too. Typical usage
would be to add a degrees-to-kilometers multiplier.
The current method could be marked deprecated with a default implementation
that invokes the new one with a 1.0 multiplier.
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