BoostingQuery (The Adobe Experience Manager SDK 2020.11.4553.20201124T121539Z-201028)

java.lang.Object
- org.apache.lucene.search.Query
- - org.apache.lucene.queries.BoostingQuery

All Implemented Interfaces:

java.lang.Cloneable
```
public class BoostingQuery
extends Query
```
The BoostingQuery class can be used to effectively demote results that match a given query. Unlike the "NOT" clause, this still selects documents that contain undesirable terms, but reduces their overall score: Query balancedQuery = new BoostingQuery(positiveQuery, negativeQuery, 0.01f); In this scenario the positiveQuery contains the mandatory, desirable criteria which is used to select all matching documents, and the negativeQuery contains the undesirable elements which are simply used to lessen the scores. Documents that match the negativeQuery have their score multiplied by the supplied "boost" parameter, so this should be less than 1 to achieve a demoting effect This code was originally made available here: [WWW] http://marc.theaimsgroup.com/?l=lucene-user&m=108058407130459&w=2 and is documented here: http://wiki.apache.org/lucene-java/CommunityContributions

Constructor Summary

Constructors
Constructor Description

BoostingQuery(Query match, Query context, float boost)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(java.lang.Object obj)`
`int`	`hashCode()`
`Query`	`rewrite(IndexReader reader)`	Expert: called to re-write queries into primitive queries.
`java.lang.String`	`toString(java.lang.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
clone, createWeight, extractTerms, getBoost, setBoost, toString

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - BoostingQuery
```
public BoostingQuery(Query match,
                     Query context,
                     float boost)
```
- Method Detail
  - rewrite
```
public Query rewrite(IndexReader reader)
              throws java.io.IOException
```
    Description copied from class: Query
    
    Expert: called to re-write queries into primitive queries. For example, a PrefixQuery will be rewritten into a BooleanQuery that consists of TermQuerys.
    
    Overrides:
    
    rewrite in class Query
    
    Throws:
    
    java.io.IOException
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Query
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Overrides:
    
    equals in class Query
  - toString
```
public java.lang.String toString(java.lang.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