Package org.apache.lucene.search

Class KnnVectorQuery.BitSetCollector

    • Field Detail

      • bitSets

        private final BitSet[] bitSets

      • cost

        private final int[] cost

      • ord

        private int ord

    • Constructor Detail

      • BitSetCollector

        private BitSetCollector​(int numLeaves)

    • Method Detail

      • getIterator

        public BitSetIterator getIterator​(int contextOrd)
        Return an iterator whose BitSet contains the matching documents, and whose BitSetIterator.cost() is the exact cardinality. If the leaf was never visited, then return null.

      • collect

        public void collect​(int doc)
             throws java.io.IOException
        Description copied from interface: LeafCollector
        Called once for every document matching a query, with the unbased document number.

        Note: The collection of the current segment can be terminated by throwing a CollectionTerminatedException. In this case, the last docs of the current LeafReaderContext will be skipped and IndexSearcher will swallow the exception and continue collection with the next leaf.

        Note: This is called in an inner search loop. For good search performance, implementations of this method should not call IndexSearcher.doc(int) or IndexReader.document(int) on every hit. Doing so can slow searches by an order of magnitude or more.

        Specified by:
        collect in interface LeafCollector
        Specified by:
        collect in class SimpleCollector
        Throws:
        java.io.IOException

      • scoreMode

        public ScoreMode scoreMode()
        Description copied from interface: Collector
        Indicates what features are required from the scorer.