Examples of org.apache.lucene.search.function.ValueSource

org.apache.lucene.search.function.ValueSource

Expert: source of values for basic function queries.

At its default/simplest form, values - one per doc - are used as the score of that doc.

Values are instantiated as {@link org.apache.lucene.search.function.DocValues DocValues} for a particular reader.

ValueSource implementations differ in RAM requirements: it would always be a factor of the number of documents, but for each document the number of bytes can be 1, 2, 4, or 8.

WARNING: The status of the search.function package is experimental. The APIs introduced here might change in the future and will not be supported anymore in such a case.

          + "(" + args + "...");


      Filter filter = new ErlangFilter(mod, fun, args, key,
          this.translator.getFieldType(key));


      ValueSource valSrc = new ErlangValueSource((ErlangFilter) filter);


      return new CustomScoreQuery(new ConstantScoreQuery(filter),
          new ValueSourceQuery(valSrc));
    }
  }

    jlog.finer("redis query against " + host + ":" + port + " [" + db
        + "] using " + command + "...");


    Filter filter = new RedisFilter(host, port, db, command, key);


    ValueSource valSrc = new RedisValueSource((RedisFilter) filter);


    return new CustomScoreQuery(new ConstantScoreQuery(filter),
        new ValueSourceQuery(valSrc));
  }

        Filter cartesianFilter = cpf.getBoundingArea(lat, lng, miles);
        DistanceFilter filter = new LatLongDistanceFilter(
            cartesianFilter, lat, lng, miles, key + "`lat", key
                + "`lng");


        ValueSource valSrc = new DistanceValueSource(filter);


        return new CustomScoreQuery(new ConstantScoreQuery(filter),
            new ValueSourceQuery(valSrc));
      } catch (IllegalArgumentException iae) {
        throw new ParseException(iae.getMessage());

Examples of org.apache.lucene.search.function.ValueSource

Related Classes of org.apache.lucene.search.function.ValueSource