parcel KinoSearch cnick Kino;

/** Matcher for a PhraseQuery. 
 */

class KinoSearch::Search::PhraseScorer inherits KinoSearch::Search::Matcher {

    int32_t         doc_id;
    uint32_t        num_elements;
    Similarity     *sim;
    PostingList   **plists;
    ByteBuf        *anchor_set;
    float           phrase_freq;
    float           phrase_boost;
    Compiler       *compiler;
    float           weight;
    bool_t          first_time;
    bool_t          more;

    inert incremented PhraseScorer*
    new(Similarity *similarity, VArray *posting_lists, Compiler *compiler);

    inert PhraseScorer*
    init(PhraseScorer *self, Similarity *similarity, VArray *posting_lists, 
         Compiler *compiler);

    public void
    Destroy(PhraseScorer *self);

    public int32_t
    Next(PhraseScorer *self);

    public int32_t
    Advance(PhraseScorer *self, int32_t target);

    public int32_t 
    Get_Doc_ID(PhraseScorer *self);

    public float
    Score(PhraseScorer *self);

    /** Calculate how often the phrase occurs in the current document.
     */
    float
    Calc_Phrase_Freq(PhraseScorer *self);
}

/* Copyright 2006-2011 Marvin Humphrey
 *
 * This program is free software; you can redistribute it and/or modify
 * under the same terms as Perl itself.
 */