Java Code Examples for org.apache.lucene.search.BulkScorer

The following examples show how to use org.apache.lucene.search.BulkScorer. These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source Project: lucene-solr   Source File: SuggestIndexSearcher.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Lower-level suggest API.
 * Collects completion hits through <code>collector</code> for <code>query</code>.
 *
 * <p>{@link TopSuggestDocsCollector#collect(int, CharSequence, CharSequence, float)}
 * is called for every matching completion hit.
 */
public void suggest(CompletionQuery query, TopSuggestDocsCollector collector) throws IOException {
  // TODO use IndexSearcher.rewrite instead
  // have to implement equals() and hashCode() in CompletionQuerys and co
  query = (CompletionQuery) query.rewrite(getIndexReader());
  Weight weight = query.createWeight(this, collector.scoreMode(), 1f);
  for (LeafReaderContext context : getIndexReader().leaves()) {
    BulkScorer scorer = weight.bulkScorer(context);
    if (scorer != null) {
      try {
        scorer.score(collector.getLeafCollector(context), context.reader().getLiveDocs());
      } catch (CollectionTerminatedException e) {
        // collection was terminated prematurely
        // continue with the following leaf
      }
    }
  }
}
 
Example 2
Source Project: Elasticsearch   Source File: ProfileWeight.java    License: Apache License 2.0 5 votes vote down vote up
@Override
public BulkScorer bulkScorer(LeafReaderContext context) throws IOException {
    // We use the default bulk scorer instead of the specialized one. The reason
    // is that Lucene's BulkScorers do everything at once: finding matches,
    // scoring them and calling the collector, so they make it impossible to
    // see where time is spent, which is the purpose of query profiling.
    // The default bulk scorer will pull a scorer and iterate over matches,
    // this might be a significantly different execution path for some queries
    // like disjunctions, but in general this is what is done anyway
    return super.bulkScorer(context);
}
 
Example 3
Source Project: lucene-solr   Source File: CompletionWeight.java    License: Apache License 2.0 5 votes vote down vote up
@Override
public BulkScorer bulkScorer(final LeafReaderContext context) throws IOException {
  final LeafReader reader = context.reader();
  final Terms terms;
  final NRTSuggester suggester;
  if ((terms = reader.terms(completionQuery.getField())) == null) {
    return null;
  }
  if (terms instanceof CompletionTerms) {
    CompletionTerms completionTerms = (CompletionTerms) terms;
    if ((suggester = completionTerms.suggester()) == null) {
      // a segment can have a null suggester
      // i.e. no FST was built
      return null;
    }
  } else {
    throw new IllegalArgumentException(completionQuery.getField() + " is not a SuggestField");
  }

  BitsProducer filter = completionQuery.getFilter();
  Bits filteredDocs = null;
  if (filter != null) {
    filteredDocs = filter.getBits(context);
    if (filteredDocs.getClass() == Bits.MatchNoBits.class) {
      return null;
    }
  }
  return new CompletionScorer(this, suggester, reader, filteredDocs, filter != null, automaton);
}
 
Example 4
Source Project: lucene-solr   Source File: SolrRangeQuery.java    License: Apache License 2.0 5 votes vote down vote up
@Override
public BulkScorer bulkScorer(LeafReaderContext context) throws IOException {
  final SegState weightOrBitSet = getSegState(context);
  if (weightOrBitSet.weight != null) {
    return weightOrBitSet.weight.bulkScorer(context);
  } else {
    final Scorer scorer = scorer(weightOrBitSet.set);
    if (scorer == null) {
      return null;
    }
    return new DefaultBulkScorer(scorer);
  }
}
 
Example 5
Source Project: crate   Source File: ProfileWeight.java    License: Apache License 2.0 5 votes vote down vote up
@Override
public BulkScorer bulkScorer(LeafReaderContext context) throws IOException {
    // We use the default bulk scorer instead of the specialized one. The reason
    // is that Lucene's BulkScorers do everything at once: finding matches,
    // scoring them and calling the collector, so they make it impossible to
    // see where time is spent, which is the purpose of query profiling.
    // The default bulk scorer will pull a scorer and iterate over matches,
    // this might be a significantly different execution path for some queries
    // like disjunctions, but in general this is what is done anyway
    return super.bulkScorer(context);
}
 
Example 6
Source Project: Elasticsearch   Source File: IndicesQueryCache.java    License: Apache License 2.0 4 votes vote down vote up
@Override
public BulkScorer bulkScorer(LeafReaderContext context) throws IOException {
    shardKeyMap.add(context.reader());
    return in.bulkScorer(context);
}
 
Example 7
Source Project: crate   Source File: IndicesQueryCache.java    License: Apache License 2.0 4 votes vote down vote up
@Override
public BulkScorer bulkScorer(LeafReaderContext context) throws IOException {
    shardKeyMap.add(context.reader());
    return in.bulkScorer(context);
}