org.apache.lucene.search

## Class PointRangeQuery

- java.lang.Object
- - org.apache.lucene.search.Query
  - - org.apache.lucene.search.PointRangeQuery

-     public abstract class PointRangeQuery
      extends Query

  Abstract class for range queries against single or multidimensional points such as `IntPoint`.

  This is for subclasses and works on the underlying binary encoding: to create range queries for lucene's standard `Point` types, refer to factory methods on those classes, e.g. `IntPoint.newRangeQuery()` for fields indexed with `IntPoint`.

  For a single-dimensional field this query is a simple range query; in a multi-dimensional field it's a box shape.

  See Also:
    `PointValues`
  WARNING: This API is experimental and might change in incompatible ways in the next release.

- - ### Constructor Summary

    Constructors
    Modifier | Constructor and Description
    --- | ---
    `protected` | `PointRangeQuery(String field, byte[] lowerPoint, byte[] upperPoint, int numDims)` Expert: create a multidimensional range query for point values.

  - ### Method Summary

    All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `static void` | `checkArgs(String field, Object lowerPoint, Object upperPoint)` Check preconditions for all factory methods
    `Weight` | `createWeight(IndexSearcher searcher, boolean needsScores)` Expert: Constructs an appropriate Weight implementation for this query.
    `boolean` | `equals(Object o)` Override and implement query instance equivalence properly in a subclass.
    `int` | `getBytesPerDim()`
    `String` | `getField()`
    `byte[]` | `getLowerPoint()`
    `int` | `getNumDims()`
    `byte[]` | `getUpperPoint()`
    `int` | `hashCode()` Override and implement query hash code properly in a subclass.
    `protected abstract String` | `toString(int dimension, byte[] value)` Returns a string of a single value in a human-readable format for debugging.
    `String` | `toString(String field)` Prints a query to a string, with `field` assumed to be the default field and omitted.

    - ### Methods inherited from class org.apache.lucene.search.Query

      `classHash, rewrite, sameClassAs, toString`

    - ### Methods inherited from class java.lang.Object

      `clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### PointRangeQuery

          protected PointRangeQuery(String field,
                                    byte[] lowerPoint,
                                    byte[] upperPoint,
                                    int numDims)

      Expert: create a multidimensional range query for point values.
      Parameters:
        `field` - field name. must not be `null`.
        `lowerPoint` - lower portion of the range (inclusive).
        `upperPoint` - upper portion of the range (inclusive).
        `numDims` - number of dimensions.
      Throws:
        `IllegalArgumentException` - if `field` is null, or if `lowerValue.length != upperValue.length`

  - ### Method Detail

    - #### checkArgs

          public static void checkArgs(String field,
                                       Object lowerPoint,
                                       Object upperPoint)

      Check preconditions for all factory methods
      Throws:
        `IllegalArgumentException` - if `field`, `lowerPoint` or `upperPoint` are null.

    - #### createWeight

          public final Weight createWeight(IndexSearcher searcher,
                                           boolean needsScores)
                                    throws IOException

      Description copied from class: `Query`
      Expert: Constructs an appropriate Weight implementation for this query.

      Only implemented by primitive queries, which re-write to themselves.

      Overrides:
        `createWeight` in class `Query`
        `needsScores` - True if document scores (`Scorer.score()`) or match frequencies (`Scorer.freq()`) are needed.
      Throws:
        `IOException`

    - #### getField

          public String getField()

    - #### getNumDims

          public int getNumDims()

    - #### getBytesPerDim

          public int getBytesPerDim()

    - #### getLowerPoint

          public byte[] getLowerPoint()

    - #### getUpperPoint

          public byte[] getUpperPoint()

    - #### hashCode

          public final int hashCode()

      Description copied from class: `Query`
      Override and implement query hash code properly in a subclass. This is required so that `QueryCache` works properly.
      Specified by:
        `hashCode` in class `Query`
      See Also:
        `Query.equals(Object)`

    - #### equals

          public final boolean equals(Object o)

      Description copied from class: `Query`
      Override and implement query instance equivalence properly in a subclass. This is required so that `QueryCache` works properly. Typically a query will be equal to another only if it's an instance of the same class and its document-filtering properties are identical that other instance. Utility methods are provided for certain repetitive code.
      Specified by:
        `equals` in class `Query`
      See Also:
        `Query.sameClassAs(Object)`, `Query.classHash()`

    - #### toString

          public final String toString(String field)

      Description copied from class: `Query`
      Prints a query to a string, with `field` assumed to be the default field and omitted.
      Specified by:
        `toString` in class `Query`

    - #### toString

          protected abstract String toString(int dimension,
                                             byte[] value)

      Returns a string of a single value in a human-readable format for debugging. This is used by `Query.toString()`.
      Parameters:
        `dimension` - dimension of the particular value
        `value` - single value, never null
      Returns:
        human readable value for debugging

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