How to use

insertBulk

method

in

org.deegree.commons.index.RTree

/**
 * @param shapeReader
 */
private static Pair<RTree<Long>, Boolean> createIndex( SHPReader shapeReader ) {
  Envelope env = shapeReader.getEnvelope();
  // use 128 values per rect.
  RTree<Long> result = new RTree<Long>( createEnvelope( env ), -1 );
  // to work around Java's non-existent variant type
  LOG.debug( "Read envelopes from shape file..." );
  Pair<ArrayList<Pair<float[], Long>>, Boolean> p = shapeReader.readEnvelopes();
  LOG.debug( "done reading envelopes." );
  result.insertBulk( p.first );
  return new Pair<RTree<Long>, Boolean>( result, p.second );
}

private void rebuildRtrees() {
  ftToIndex.clear();
  for ( FeatureType ft : ftToFeatures.keySet() ) {
    FeatureCollection fc = ftToFeatures.get( ft );
    Envelope env = fc.getEnvelope();
    if ( env != null ) {
      RTree<Feature> index = new RTree<Feature>( toFloats( env ), 16 );
      List<Pair<float[], Feature>> fBboxes = new ArrayList<Pair<float[], Feature>>( fc.size() );
      for ( Feature f : fc ) {
        Envelope fEnv = f.getEnvelope();
        if ( fEnv != null ) {
          float[] floats = toFloats( fEnv );
          fBboxes.add( new Pair<float[], Feature>( floats, f ) );
        }
      }
      index.insertBulk( fBboxes );
      ftToIndex.put( ft, index );
    }
  }
}