org.apache.lucene.document

Class DoublePoint

    • Constructor Detail

      • DoublePoint

        public DoublePoint(String name,
                           double... point)
        Creates a new DoublePoint, indexing the provided N-dimensional double point.
        Parameters:
        name - field name
        point - double[] value
        Throws:
        IllegalArgumentException - if the field name or value is null.
    • Method Detail

      • setDoubleValues

        public void setDoubleValues(double... point)
        Change the values of this field
      • encodeDimension

        public static void encodeDimension(double value,
                                           byte[] dest,
                                           int offset)
        Encode single double dimension
      • decodeDimension

        public static double decodeDimension(byte[] value,
                                             int offset)
        Decode single double dimension
      • newRangeQuery

        public static Query newRangeQuery(String field,
                                          double lowerValue,
                                          double upperValue)
        Create a range query for double values.

        This is for simple one-dimension ranges, for multidimensional ranges use newRangeQuery(String, double[], double[]) instead.

        You can have half-open ranges (which are in fact </≤ or >/≥ queries) by setting lowerValue = Double.NEGATIVE_INFINITY or upperValue = Double.POSITIVE_INFINITY.

        Ranges are inclusive. For exclusive ranges, pass nextUp(lowerValue) or nextDown(upperValue).

        Range comparisons are consistent with Double.compareTo(Double).

        Parameters:
        field - field name. must not be null.
        lowerValue - lower portion of the range (inclusive).
        upperValue - upper portion of the range (inclusive).
        Returns:
        a query matching documents within this range.
        Throws:
        IllegalArgumentException - if field is null.
      • newRangeQuery

        public static Query newRangeQuery(String field,
                                          double[] lowerValue,
                                          double[] upperValue)
        Create a range query for n-dimensional double values.

        You can have half-open ranges (which are in fact </≤ or >/≥ queries) by setting lowerValue[i] = Double.NEGATIVE_INFINITY or upperValue[i] = Double.POSITIVE_INFINITY.

        Ranges are inclusive. For exclusive ranges, pass Math#nextUp(lowerValue[i]) or Math.nextDown(upperValue[i]).

        Range comparisons are consistent with Double.compareTo(Double).

        Parameters:
        field - field name. must not be null.
        lowerValue - lower portion of the range (inclusive). must not be null.
        upperValue - upper portion of the range (inclusive). must not be null.
        Returns:
        a query matching documents within this range.
        Throws:
        IllegalArgumentException - if field is null, if lowerValue is null, if upperValue is null, or if lowerValue.length != upperValue.length
      • newSetQuery

        public static Query newSetQuery(String field,
                                        double... values)
        Create a query matching any of the specified 1D values. This is the points equivalent of TermsQuery.
        Parameters:
        field - field name. must not be null.
        values - all values to match
      • newSetQuery

        public static Query newSetQuery(String field,
                                        Collection<Double> values)
        Create a query matching any of the specified 1D values. This is the points equivalent of TermsQuery.
        Parameters:
        field - field name. must not be null.
        values - all values to match