Field Detail

• spans

  protected Spans spans

• norms

  protected byte[] norms

• value

  protected float value

• more

  protected boolean more

• doc

  protected int doc

• freq

  protected float freq

Constructor Detail

• SpanScorer

  protected SpanScorer​(Spans spans,
                       Weight weight,
                       Similarity similarity,
                       byte[] norms)
                throws IOException

  Throws:

  IOException

Method Detail

• nextDoc

  public int nextDoc()
              throws IOException

  Description copied from class: DocIdSetIterator
  Advances to the next document in the set and returns the doc it is currently on, or DocIdSetIterator.NO_MORE_DOCS if there are no more docs in the set.
  NOTE: after the iterator has exhausted you should not call this method, as it may result in unpredicted behavior.

  Specified by:

  nextDoc in class DocIdSetIterator

  Throws:

  IOException

• advance

  public int advance​(int target)
              throws IOException

  Description copied from class: DocIdSetIterator
  Advances to the first beyond (see NOTE below) the current whose document number is greater than or equal to target. Returns the current document number or DocIdSetIterator.NO_MORE_DOCS if there are no more docs in the set.

  Behaves as if written:

   int advance(int target) {
     int doc;
     while ((doc = nextDoc()) < target) {
     }
     return doc;
   }
   

  Some implementations are considerably more efficient than that.

  NOTE: when target ≤ current implementations may opt not to advance beyond their current DocIdSetIterator.docID().

  NOTE: this method may be called with DocIdSetIterator.NO_MORE_DOCS for efficiency by some Scorers. If your implementation cannot efficiently determine that it should exhaust, it is recommended that you check for that value in each call to this method.

  NOTE: after the iterator has exhausted you should not call this method, as it may result in unpredicted behavior.

  Specified by:

  advance in class DocIdSetIterator

  Throws:

  IOException

• setFreqCurrentDoc

  protected boolean setFreqCurrentDoc()
                               throws IOException

  Throws:

  IOException

• docID

  public int docID()

  Description copied from class: DocIdSetIterator
  Returns the following:

  • -1 or DocIdSetIterator.NO_MORE_DOCS if DocIdSetIterator.nextDoc() or DocIdSetIterator.advance(int) were not called yet.
  • DocIdSetIterator.NO_MORE_DOCS if the iterator has exhausted.
  • Otherwise it should return the doc ID it is currently on.

  Specified by:

  docID in class DocIdSetIterator

• score

  public float score()
              throws IOException

  Description copied from class: Scorer
  Returns the score of the current document matching the query. Initially invalid, until DocIdSetIterator.nextDoc() or DocIdSetIterator.advance(int) is called the first time, or when called from within Collector.collect(int).

  Specified by:

  score in class Scorer

  Throws:

  IOException

• freq

  public float freq()
             throws IOException

  Description copied from class: Scorer
  Returns number of matches for the current document. This returns a float (not int) because SloppyPhraseScorer discounts its freq according to how "sloppy" the match was.

  Overrides:

  freq in class Scorer

  Throws:

  IOException

• explain

  protected Explanation explain​(int doc)
                         throws IOException

  This method is no longer an official member of Scorer, but it is needed by SpanWeight to build an explanation.

  Throws:

  IOException