Package org.apache.lucene.search

# Class PointInSetQuery

java.lang.Object
org.apache.lucene.search.Query
org.apache.lucene.search.PointInSetQuery

All Implemented Interfaces:
  `Accountable`

public abstract class PointInSetQuery extends Query implements Accountable
Abstract query class to find all documents whose single or multi-dimensional point values, previously indexed with e.g. `IntPoint`, is contained in the specified set.

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.newSetQuery()` for fields indexed with `IntPoint`.

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

- ## Nested Class Summary

  Nested Classes
  Modifier and Type
  Class
  Description
  `static class`
  `PointInSetQuery.Stream`
  Iterator of encoded point values.

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `protected static final long`
  `BASE_RAM_BYTES`

  ### Fields inherited from interface org.apache.lucene.util.Accountable

  `NULL_ACCOUNTABLE`

- ## Constructor Summary

  Constructors
  Modifier
  Constructor
  Description
  `protected`
  `PointInSetQuery(String field, int numDims, int bytesPerDim, PointInSetQuery.Stream packedPoints)`
  The `packedPoints` iterator must be in sorted order.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `final Weight`
  `createWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost)`
  Expert: Constructs an appropriate Weight implementation for this query.
  `final boolean`
  `equals(Object other)`
  Override and implement query instance equivalence properly in a subclass.
  `int`
  `getBytesPerDim()`
  `String`
  `getField()`
  `int`
  `getNumDims()`
  `Collection<byte[]>`
  `getPackedPoints()`
  `final int`
  `hashCode()`
  Override and implement query hash code properly in a subclass.
  `long`
  `ramBytesUsed()`
  Return the memory usage of this object in bytes.
  `protected abstract String`
  `toString(byte[] value)`
  Returns a string of a single value in a human-readable format for debugging.
  `final String`
  `toString(String field)`
  Prints a query to a string, with `field` assumed to be the default field and omitted.
  `void`
  `visit(QueryVisitor visitor)`
  Recurse through the query tree, visiting any child queries.

  ### 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`

  ### Methods inherited from interface org.apache.lucene.util.Accountable

  `getChildResources`

- ## Field Details

  - ### BASE_RAM_BYTES

    protected static final long BASE_RAM_BYTES

- ## Constructor Details

  - ### PointInSetQuery

    protected PointInSetQuery(String field, int numDims, int bytesPerDim, PointInSetQuery.Stream packedPoints)
    The `packedPoints` iterator must be in sorted order.

- ## Method Details

  - ### visit

    public void visit(QueryVisitor visitor)
    Description copied from class: `Query`
    Recurse through the query tree, visiting any child queries.
    Specified by:
      `visit` in class `Query`
    Parameters:
      `visitor` - a QueryVisitor to be called by each query in the tree

  - ### createWeight

    public final Weight createWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost) 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`
    Parameters:
      `scoreMode` - How the produced scorers will be consumed.
      `boost` - The boost that is propagated by the parent queries.
    Throws:
      `IOException`

  - ### getPackedPoints

    public Collection<byte[]> getPackedPoints()

  - ### getField

    public String getField()

  - ### getNumDims

    public int getNumDims()

  - ### getBytesPerDim

    public int getBytesPerDim()

  - ### 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 other)
    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 to those of the 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(byte[] value)
    Returns a string of a single value in a human-readable format for debugging. This is used by `Query.toString()`.

    The default implementation encodes the individual byte values.

    Parameters:
      `value` - single value, never null
    Returns:
      human readable value for debugging

  - ### ramBytesUsed

    public long ramBytesUsed()
    Description copied from interface: `Accountable`
    Return the memory usage of this object in bytes. Negative values are illegal.
    Specified by:
      `ramBytesUsed` in interface `Accountable`