parcel KinoSearch cnick Kino;

/** Posting with per-position boost.
 *
 * RichPosting is similar to
 * L<ScorePosting|KinoSearch::Index::Posting::ScorePosting>, but weighting is
 * per-position rather than per-field.  To exploit this, you need a custom
 * L<Analyzer|KinoSearch::Analysis::Analyzer> which assigns varying boosts to
 * individual L<Token|KinoSearch::Analysis::Token> objects.
 * 
 * A typical application for RichPosting is an HTMLAnalyzer which assigns
 * boost based on the visual size and weight of the marked up text: H1
 * blocks get the greatest weight, H2 blocks almost as much, etc.
 */ 
class KinoSearch::Index::Posting::RichPosting cnick RichPost
    inherits KinoSearch::Index::Posting::ScorePosting {

    float  *prox_boosts;

    inert incremented RichPosting*
    new(Similarity *similarity);

    inert RichPosting*
    init(RichPosting *self, Similarity *similarity);

    public void
    Destroy(RichPosting *self);

    void
    Read_Record(RichPosting *self, InStream *instream);

    incremented RawPosting*
    Read_Raw(RichPosting *self, InStream *instream, int32_t last_doc_id, 
             CharBuf *term_text, MemoryPool *mem_pool);

    void
    Add_Inversion_To_Pool(RichPosting *self, PostingPool *post_pool, 
                          Inversion *inversion, FieldType *type, 
                          int32_t doc_id, float doc_boost, 
                          float length_norm);

    incremented RichPostingScorer*
    Make_Matcher(RichPosting *self, Similarity *sim, PostingList *plist, 
                 Compiler *compiler, bool_t need_score);
}

class KinoSearch::Index::Posting::RichPostingScorer cnick RichPostScorer
    inherits KinoSearch::Index::Posting::ScorePostingScorer {

    inert RichPostingScorer*
    init(RichPostingScorer *self, Similarity *similarity, 
         PostingList *posting_list, Compiler *compiler);
}

/* Copyright 2007-2011 Marvin Humphrey
 *
 * This program is free software; you can redistribute it and/or modify
 * under the same terms as Perl itself.
 */