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https://issues.apache.org/jira/browse/SOLR-2155?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12989403#comment-12989403
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Bill Bell edited comment on SOLR-2155 at 2/1/11 10:52 PM:
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On trunk I applied the patch and get an error. What revision of SOLR should I
get to apply this patch?
[javac] Compiling 24 source files to
/home/solr/src/dev/trunk/lucene/build/contrib/spatial/classes/java
[javac]
/home/solr/src/dev/trunk/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geohash/GeoHashPrefixFilter.java:41:
org.apache.lucene.spatial.geohash.GeoHashPrefixFilter is not abstract and does
not override abstract method
getDocIdSet(org.apache.lucene.index.IndexReader.AtomicReaderContext) in
org.apache.lucene.search.Filter
[javac] public class GeoHashPrefixFilter extends Filter {
[javac] ^
[javac]
/home/solr/src/dev/trunk/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geohash/GeoHashPrefixFilter.java:54:
method does not override or implement a method from a supertype
[javac] @Override
[javac] ^
[javac] Note:
/home/solr/src/dev/trunk/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/tier/CartesianPolyFilterBuilder.java
uses or overrides a deprecated API.
[javac] Note: Recompile with -Xlint:deprecation for details.
[javac] 2 errors
Ideas?
was (Author: billnbell):
On trunk I applied the patch and get an error:
[javac] Compiling 24 source files to
/home/solr/src/dev/trunk/lucene/build/contrib/spatial/classes/java
[javac]
/home/solr/src/dev/trunk/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geohash/GeoHashPrefixFilter.java:41:
org.apache.lucene.spatial.geohash.GeoHashPrefixFilter is not abstract and does
not override abstract method
getDocIdSet(org.apache.lucene.index.IndexReader.AtomicReaderContext) in
org.apache.lucene.search.Filter
[javac] public class GeoHashPrefixFilter extends Filter {
[javac] ^
[javac]
/home/solr/src/dev/trunk/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/geohash/GeoHashPrefixFilter.java:54:
method does not override or implement a method from a supertype
[javac] @Override
[javac] ^
[javac] Note:
/home/solr/src/dev/trunk/lucene/contrib/spatial/src/java/org/apache/lucene/spatial/tier/CartesianPolyFilterBuilder.java
uses or overrides a deprecated API.
[javac] Note: Recompile with -Xlint:deprecation for details.
[javac] 2 errors
Ideas?
> Geospatial search using geohash prefixes
> ----------------------------------------
>
> Key: SOLR-2155
> URL: https://issues.apache.org/jira/browse/SOLR-2155
> Project: Solr
> Issue Type: Improvement
> Reporter: David Smiley
> Attachments: GeoHashPrefixFilter.patch, GeoHashPrefixFilter.patch,
> GeoHashPrefixFilter.patch
>
>
> There currently isn't a solution in Solr for doing geospatial filtering on
> documents that have a variable number of points. This scenario occurs when
> there is location extraction (i.e. via a "gazateer") occurring on free text.
> None, one, or many geospatial locations might be extracted from any given
> document and users want to limit their search results to those occurring in a
> user-specified area.
> I've implemented this by furthering the GeoHash based work in Lucene/Solr
> with a geohash prefix based filter. A geohash refers to a lat-lon box on the
> earth. Each successive character added further subdivides the box into a 4x8
> (or 8x4 depending on the even/odd length of the geohash) grid. The first
> step in this scheme is figuring out which geohash grid squares cover the
> user's search query. I've added various extra methods to GeoHashUtils (and
> added tests) to assist in this purpose. The next step is an actual Lucene
> Filter, GeoHashPrefixFilter, that uses these geohash prefixes in
> TermsEnum.seek() to skip to relevant grid squares in the index. Once a
> matching geohash grid is found, the points therein are compared against the
> user's query to see if it matches. I created an abstraction GeoShape
> extended by subclasses named PointDistance... and CartesianBox.... to support
> different queried shapes so that the filter need not care about these details.
> This work was presented at LuceneRevolution in Boston on October 8th.
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