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parcel KinoSearch cnick Kino;

/** Join results for two Queries, one required, one optional.
 *
 * RequiredOptionalQuery joins the result sets of one Query which MUST match,
 * and one Query which SHOULD match.  When only the required Query matches,
 * its score is passed along; when both match, the scores are summed.
 */

class KinoSearch::Search::RequiredOptionalQuery cnick ReqOptQuery
    inherits KinoSearch::Search::PolyQuery {

    inert incremented RequiredOptionalQuery*
    new(Query *required_query, Query *optional_query);

    /** 
     * @param required_query Query must must match.
     * @param optional_query Query which should match.
     */
    public inert RequiredOptionalQuery*
    init(RequiredOptionalQuery *self, Query *required_query, 
         Query *optional_query);

    /** Getter for the required Query. */
    public Query*
    Get_Required_Query(RequiredOptionalQuery *self);

    /** Setter for the required Query. */
    public void
    Set_Required_Query(RequiredOptionalQuery *self, Query *required_query);

    /** Getter for the optional Query. */
    public Query*
    Get_Optional_Query(RequiredOptionalQuery *self);

    /** Setter for the optional Query. */
    public void
    Set_Optional_Query(RequiredOptionalQuery *self, Query *optional_query);

    public incremented Compiler*
    Make_Compiler(RequiredOptionalQuery *self, Searcher *searcher, 
                  float boost);

    public incremented CharBuf*
    To_String(RequiredOptionalQuery *self);

    public bool_t
    Equals(RequiredOptionalQuery *self, Obj *other);
}

class KinoSearch::Search::RequiredOptionalCompiler cnick ReqOptCompiler
    inherits KinoSearch::Search::PolyCompiler {

    inert incremented RequiredOptionalCompiler*
    new(RequiredOptionalQuery *parent, Searcher *searcher, float boost);

    inert RequiredOptionalCompiler*
    init(RequiredOptionalCompiler *self, RequiredOptionalQuery *parent, 
         Searcher *searcher, float boost);

    public incremented nullable Matcher*
    Make_Matcher(RequiredOptionalCompiler *self, SegReader *reader, 
                 bool_t need_score);
}

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