org.apache.lucene.search

Class RandomApproximationQuery

java.lang.Object

org.apache.lucene.search.Query

org.apache.lucene.search.RandomApproximationQuery

public class RandomApproximationQuery
extends Query

A Query that adds random approximations to its scorers.

Constructor Summary

Constructors

Constructor and Description
RandomApproximationQuery(Query query, Random random)

Method Summary

Modifier and Type	Method and Description
Weight	createWeight(IndexSearcher searcher, boolean needsScores, float boost)
boolean	equals(Object other)
int	hashCode()
Query	rewrite(IndexReader reader)
String	toString(String field)

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

classHash, sameClassAs, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomApproximationQuery

public RandomApproximationQuery(Query query,
                                Random random)

Method Detail

rewrite

public Query rewrite(IndexReader reader)
              throws IOException

Overrides:

rewrite in class Query

Throws:

IOException

equals

public boolean equals(Object other)

Specified by:

equals in class Query

hashCode

public int hashCode()

Specified by:

hashCode in class Query

toString

public String toString(String field)

Specified by:

toString in class Query

createWeight

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

Overrides:

createWeight in class Query

Throws:

IOException