Package org.apache.lucene.search.join

# Class QueryBitSetProducer

java.lang.Object
org.apache.lucene.search.join.QueryBitSetProducer

All Implemented Interfaces:
  `BitSetProducer`

public class QueryBitSetProducer extends Object implements BitSetProducer
A `BitSetProducer` that wraps a query and caches matching `BitSet`s per segment.

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `QueryBitSetProducer(Query query)`
  Wraps another query's result and caches it into bitsets.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `boolean`
  `equals(Object o)`
  `BitSet`
  `getBitSet(LeafReaderContext context)`
  Produce a `BitSet` matching the expected documents on the given segment.
  `Query`
  `getQuery()`
  Gets the contained query.
  `int`
  `hashCode()`
  `String`
  `toString()`

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

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

- ## Constructor Details

  - ### QueryBitSetProducer

    public QueryBitSetProducer(Query query)
    Wraps another query's result and caches it into bitsets.
    Parameters:
      `query` - Query to cache results of

- ## Method Details

  - ### getQuery

    public Query getQuery()
    Gets the contained query.
    Returns:
      the contained query.

  - ### getBitSet

    public BitSet getBitSet(LeafReaderContext context) throws IOException
    Description copied from interface: `BitSetProducer`
    Produce a `BitSet` matching the expected documents on the given segment. This may return `null` if no documents match.
    Specified by:
      `getBitSet` in interface `BitSetProducer`
    Throws:
      `IOException`

  - ### toString

    public String toString()
    Overrides:
      `toString` in class `Object`

  - ### equals

    public boolean equals(Object o)
    Overrides:
      `equals` in class `Object`

  - ### hashCode

    public int hashCode()
    Overrides:
      `hashCode` in class `Object`