org.apache.lucene.search.Sort.rewrite()方法的使用及代码示例

x33g5p2x  于2022-01-29 转载在 其他  
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本文整理了Java中org.apache.lucene.search.Sort.rewrite()方法的一些代码示例，展示了Sort.rewrite()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Sort.rewrite()方法的具体详情如下：
包路径：org.apache.lucene.search.Sort
类名称：Sort
方法名：rewrite

Sort.rewrite介绍

[英]Rewrites the SortFields in this Sort, returning a new Sort if any of the fields changes during their rewriting.
[中]以这种排序方式重写SortFields，如果任何字段在重写过程中发生更改，则返回新的排序。

代码示例

代码示例来源：origin: org.apache.lucene/lucene-core

  1. private TopFieldDocs searchAfter(FieldDoc after, Query query, int numHits, Sort sort,
  2.   boolean doDocScores, boolean doMaxScore) throws IOException {
  3.  final int limit = Math.max(1, reader.maxDoc());
  4.  if (after != null && after.doc >= limit) {
  5.   throw new IllegalArgumentException("after.doc exceeds the number of documents in the reader: after.doc="
  6.     + after.doc + " limit=" + limit);
  7.  }
  8.  final int cappedNumHits = Math.min(numHits, limit);
  9.  final Sort rewrittenSort = sort.rewrite(this);
  10.  final CollectorManager<TopFieldCollector, TopFieldDocs> manager = new CollectorManager<TopFieldCollector, TopFieldDocs>() {
  11.   @Override
  12.   public TopFieldCollector newCollector() throws IOException {
  13.    final boolean fillFields = true;
  14.    // TODO: don't pay the price for accurate hit counts by default
  15.    return TopFieldCollector.create(rewrittenSort, cappedNumHits, after, fillFields, doDocScores, doMaxScore, true);
  16.   }
  17.   @Override
  18.   public TopFieldDocs reduce(Collection<TopFieldCollector> collectors) throws IOException {
  19.    final TopFieldDocs[] topDocs = new TopFieldDocs[collectors.size()];
  20.    int i = 0;
  21.    for (TopFieldCollector collector : collectors) {
  22.     topDocs[i++] = collector.topDocs();
  23.    }
  24.    return TopDocs.merge(rewrittenSort, 0, cappedNumHits, topDocs, true);
  25.   }
  26.  };
  27.  return search(query, manager);
  28. }

代码示例来源：origin: org.apache.servicemix.bundles/org.apache.servicemix.bundles.lucene

  1. private TopFieldDocs searchAfter(FieldDoc after, Query query, int numHits, Sort sort,
  2.   boolean doDocScores, boolean doMaxScore) throws IOException {
  3.  final int limit = Math.max(1, reader.maxDoc());
  4.  if (after != null && after.doc >= limit) {
  5.   throw new IllegalArgumentException("after.doc exceeds the number of documents in the reader: after.doc="
  6.     + after.doc + " limit=" + limit);
  7.  }
  8.  final int cappedNumHits = Math.min(numHits, limit);
  9.  final Sort rewrittenSort = sort.rewrite(this);
  10.  final CollectorManager<TopFieldCollector, TopFieldDocs> manager = new CollectorManager<TopFieldCollector, TopFieldDocs>() {
  11.   @Override
  12.   public TopFieldCollector newCollector() throws IOException {
  13.    final boolean fillFields = true;
  14.    // TODO: don't pay the price for accurate hit counts by default
  15.    return TopFieldCollector.create(rewrittenSort, cappedNumHits, after, fillFields, doDocScores, doMaxScore, true);
  16.   }
  17.   @Override
  18.   public TopFieldDocs reduce(Collection<TopFieldCollector> collectors) throws IOException {
  19.    final TopFieldDocs[] topDocs = new TopFieldDocs[collectors.size()];
  20.    int i = 0;
  21.    for (TopFieldCollector collector : collectors) {
  22.     topDocs[i++] = collector.topDocs();
  23.    }
  24.    return TopDocs.merge(rewrittenSort, 0, cappedNumHits, topDocs, true);
  25.   }
  26.  };
  27.  return search(query, manager);
  28. }

代码示例来源：origin: renekrie/querqy

  1. public ReRankCollector(final int reRankNumDocs,
  2.             final int length,
  3.             final Query reRankQuery,
  4.             final double reRankWeight,
  5.             final QueryCommand cmd,
  6.             final IndexSearcher searcher) throws IOException {
  7.   super(null);
  8.   this.reRankQuery = reRankQuery;
  9.   this.reRankNumDocs = reRankNumDocs;
  10.   this.length = length;
  11.   Sort sort = cmd.getSort();
  12.   if (sort == null) {
  13.     this.mainCollector = TopScoreDocCollector.create(Math.max(reRankNumDocs, length));
  14.   } else {
  15.     sort = sort.rewrite(searcher);
  16.     this.mainCollector = TopFieldCollector.create(sort, Math.max(reRankNumDocs, length), false, true, true,
  17.         true);
  18.   }
  19.   this.searcher = searcher;
  20.   this.reRankWeight = reRankWeight;
  21. }

代码示例来源：origin: com.orientechnologies/orientdb-lucene

  1. @Override
  2. public OSpatialQueryContext build(Map<String, Object> query) throws Exception {
  3.  Shape shape = parseShape(query);
  4.  double distance = Optional.ofNullable(query.get(MAX_DISTANCE)).map(Number.class::cast).map(n -> n.doubleValue()).orElse(0D);
  5.  Point p = (Point) shape;
  6.  SpatialArgs args = new SpatialArgs(SpatialOperation.Intersects,
  7.    factory.context().makeCircle(p.getX(), p.getY(), DistanceUtils.dist2Degrees(distance, DistanceUtils.EARTH_MEAN_RADIUS_KM)));
  8.  Query filterQuery = manager.strategy().makeQuery(args);
  9.  DoubleValuesSource valueSource = manager.strategy().makeDistanceValueSource(p);
  10.  IndexSearcher searcher = manager.searcher();
  11.  Sort distSort = new Sort(valueSource.getSortField(false)).rewrite(searcher);
  12.  BooleanQuery q = new BooleanQuery.Builder().add(filterQuery, BooleanClause.Occur.MUST)
  13.    .add(new MatchAllDocsQuery(), BooleanClause.Occur.SHOULD).build();
  14.  return new OSpatialQueryContext(null, searcher, q, Arrays.asList(distSort.getSort())).setSpatialArgs(args);
  15. }

代码示例来源：origin: orientechnologies/orientdb-lucene

  1. public Object searchIntersect(OCompositeKey key, double distance, OCommandContext context) throws IOException {
  2.  double lat = ((Double) OType.convert(((OCompositeKey) key).getKeys().get(0), Double.class)).doubleValue();
  3.  double lng = ((Double) OType.convert(((OCompositeKey) key).getKeys().get(1), Double.class)).doubleValue();
  4.  SpatialOperation operation = SpatialOperation.Intersects;
  5.  Point p = ctx.makePoint(lng, lat);
  6.  SpatialArgs args = new SpatialArgs(operation, ctx.makeCircle(lng, lat,
  7.    DistanceUtils.dist2Degrees(distance, DistanceUtils.EARTH_MEAN_RADIUS_KM)));
  8.  Filter filter = strategy.makeFilter(args);
  9.  IndexSearcher searcher = getSearcher();
  10.  ValueSource valueSource = strategy.makeDistanceValueSource(p);
  11.  Sort distSort = new Sort(valueSource.getSortField(false)).rewrite(searcher);
  12.  return new LuceneResultSet(this,
  13.    new SpatialQueryContext(context, searcher, new MatchAllDocsQuery(), filter, distSort).setSpatialArgs(args));
  14. }

代码示例来源：origin: com.orientechnologies/orientdb-lucene

  1. public Set<OIdentifiable> searchIntersect(OCompositeKey key, double distance, OCommandContext context, OLuceneTxChanges changes)
  2.   throws IOException {
  3.  double lat = ((Double) OType.convert(((OCompositeKey) key).getKeys().get(0), Double.class)).doubleValue();
  4.  double lng = ((Double) OType.convert(((OCompositeKey) key).getKeys().get(1), Double.class)).doubleValue();
  5.  SpatialOperation operation = SpatialOperation.Intersects;
  6.  Point p = ctx.makePoint(lng, lat);
  7.  SpatialArgs args = new SpatialArgs(operation,
  8.    ctx.makeCircle(lng, lat, DistanceUtils.dist2Degrees(distance, DistanceUtils.EARTH_MEAN_RADIUS_KM)));
  9.  Query filterQuery = strategy.makeQuery(args);
  10.  IndexSearcher searcher = searcher();
  11.  DoubleValuesSource valueSource = strategy.makeDistanceValueSource(p);
  12.  Sort distSort = new Sort(valueSource.getSortField(false)).rewrite(searcher);
  13.  BooleanQuery q = new BooleanQuery.Builder().add(filterQuery, BooleanClause.Occur.MUST)
  14.    .add(new MatchAllDocsQuery(), BooleanClause.Occur.SHOULD).build();
  15.  OLuceneQueryContext queryContext = new OSpatialQueryContext(context, searcher, q, Arrays.asList(distSort.getSort()))
  16.    .setSpatialArgs(args).withChanges(changes);
  17.  return new OLuceneResultSet(this, queryContext, EMPTY_METADATA);
  18. }

代码示例来源：origin: com.orientechnologies/orientdb-lucene

  1. @Override
  2. public OSpatialQueryContext build(Map<String, Object> query) throws Exception {
  3.  Shape shape = parseShape(query);
  4.  SpatialStrategy strategy = manager.strategy();
  5.  Number distance = (Number) query.get("distance");
  6.  // SpatialArgs args1 = new SpatialArgs(SpatialOperation.Intersects, shape);
  7.  //
  8.  // Filter filter = strategy.makeFilter(args1);
  9.  // return new OSpatialQueryContext(null, manager.searcher(), new MatchAllDocsQuery(), filter);
  10.  SpatialArgs args = new SpatialArgs(SpatialOperation.Intersects, factory.context()
  11.    .makeCircle((Point) shape, DistanceUtils.dist2Degrees(distance.doubleValue() / 1000, DistanceUtils.EARTH_MEAN_RADIUS_KM)));
  12.  //    Filter filter = strategy.makeFilter(args);
  13.  Query filterQuery = strategy.makeQuery(args);
  14.  IndexSearcher searcher = manager.searcher();
  15.  DoubleValuesSource valueSource = strategy.makeDistanceValueSource((Point) shape);
  16.  Sort distSort = new Sort(valueSource.getSortField(false)).rewrite(searcher);
  17.  BooleanQuery q = new BooleanQuery.Builder().add(filterQuery, BooleanClause.Occur.MUST)
  18.    .add(new MatchAllDocsQuery(), BooleanClause.Occur.SHOULD).build();
  19.  return new OSpatialQueryContext(null, searcher, q, Arrays.asList(distSort.getSort())).setSpatialArgs(args);
  20. }

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