Examples of org.apache.lucene.search.FilteredDocIdSet

org.apache.lucene.search.FilteredDocIdSet
Abstract decorator class for a DocIdSet implementation that provides on-demand filtering/validation mechanism on a given DocIdSet.
Technically, this same functionality could be achieved with ChainedFilter (under queries/), however the benefit of this class is it never materializes the full bitset for the filter. Instead, the {@link #match}method is invoked on-demand, per docID visited during searching. If you know few docIDs will be visited, and the logic behind {@link #match} is relatively costly,this may be a better way to filter than ChainedFilter. @see DocIdSet

    final double[] lngIndex = FieldCache.DEFAULT.getDoubles(reader, lngField);


    final int docBase = nextDocBase;
    nextDocBase += reader.maxDoc();


    return new FilteredDocIdSet(startingFilter.getDocIdSet(reader)) {
      @Override
      protected boolean match(int doc) {
        double x = latIndex[doc];
        double y = lngIndex[doc];

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    final String[] geoHashValues = FieldCache.DEFAULT.getStrings(reader, geoHashField);


    final int docBase = nextDocBase;
    nextDocBase += reader.maxDoc();


    return new FilteredDocIdSet(startingFilter.getDocIdSet(reader)) {
      @Override
      public boolean match(int doc) {
        
        String geoHash = geoHashValues[doc];
        double[] coords = GeoHashUtils.decode(geoHash);

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    if ( ( docs == null ) || ( docs.iterator() == null ) ) {
      return null;
    }


    return new FilteredDocIdSet( docs ) {
      @Override
      protected boolean match(int documentIndex) {


        if ( center.getDistanceTo( latitudeValues.get( documentIndex ), longitudeValues.get( documentIndex ) ) <= radius ) {
          return true;

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    if ( ( docs == null ) || ( docs.iterator() == null ) ) {
      return null;
    }


    return new FilteredDocIdSet( docs ) {
      @Override
      protected boolean match(int documentIndex) {


        if ( center.getDistanceTo( latitudeValues[documentIndex], longitudeValues[documentIndex] ) <= radius ) {
          return true;

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    final String[] geoHashValues = FieldCache.DEFAULT.getStrings(reader, geoHashField);


    final int docBase = nextDocBase;
    nextDocBase += reader.maxDoc();


    return new FilteredDocIdSet(startingFilter.getDocIdSet(reader)) {
      @Override
      public boolean match(int doc) {
        
        String geoHash = geoHashValues[doc];
        double[] coords = GeoHashUtils.decode(geoHash);

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    final double[] lngIndex = FieldCache.DEFAULT.getDoubles(reader, lngField);


    final int docBase = nextDocBase;
    nextDocBase += reader.maxDoc();


    return new FilteredDocIdSet(startingFilter.getDocIdSet(reader)) {
      @Override
      protected boolean match(int doc) {
        double x = latIndex[doc];
        double y = lngIndex[doc];

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Related Classes of org.apache.lucene.search.FilteredDocIdSet

org.apache.lucene.spatial.geohash.GeoHashDistanceFilter

org.apache.lucene.spatial.tier.LatLongDistanceFilter

org.apache.lucene.spatial.util.ValueSourceFilter

org.apache.lucene.util.Bits

org.hibernate.search.spatial.impl.DistanceFilter

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