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https://issues.apache.org/jira/browse/LUCENE-6997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15121528#comment-15121528
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David Smiley commented on LUCENE-6997:
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bq. I agree. While the GeoUtils API is really close to being able to remove the
JTS dependency ...
What's missing, in your opinion? And did you actually mean Spatial4j? FYI JTS
as of yesterday is licensed BSD.
[~thetaphi] any thoughts on the impact of Java 9? Or might it be too early to
made decisions based on that?
RE the build system (e.g. proposed gradle, present ant, or whatever): I believe
there's no impact; it's just a matter of modifying our maven pom template file
with {{<optional>true</optional>}} so that consumers after release who use that
pom (via Maven or...) don't transitively pick up Spatial4j. I could do that
today and the build would succeed -- it's just metadata.
> Graduate GeoUtils and postings based GeoPointField from sandbox...
> ------------------------------------------------------------------
>
> Key: LUCENE-6997
> URL: https://issues.apache.org/jira/browse/LUCENE-6997
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Nicholas Knize
>
> {{GeoPointField}} is a lightweight dependency-free postings based geo field
> currently in sandbox. It has evolved into a very fast lightweight geo option
> that heavily leverages the optimized performance of the postings structure.
> It was originally intended to graduate to core but this does not seem
> appropriate given the variety of "built on postings" term encoding options
> (e.g., see LUCENE-6930).
> Additionally, the {{Geo*Utils}} classes are dependency free lightweight
> relational approximation utilities used by both {{GeoPointField}} and the BKD
> based {{LatLonField}} and can also be applied to benefit the lucene-spatial
> module.
> These classes have been evolving and baking for some time and are at a
> maturity level qualifying for promotion from sandbox. This will allow support
> for experimental encoding methods with (minimal) backwards compatibility -
> something sandbox does not allow.
> Since GeoPoint classes are dependency free, all GeoPointField and support and
> utility classes currently in sandbox would be promoted to the spatial3d
> package. (possibly a separate issue to rename spatial3d to spatialcore or
> spatiallite?) Such that for basic lightweight Geo support one would only need
> a handful of lucene jars. By simply adding the lucene-spatial module and its
> dependency jars users can obtain more advanced geospatial support (heatmap
> facets, full shape relations, etc).
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