org.apache.solr.search

Class BoostQParserPlugin

java.lang.Object

org.apache.solr.search.QParserPlugin

org.apache.solr.search.BoostQParserPlugin

All Implemented Interfaces:

SolrInfoBean, NamedListInitializedPlugin

public class BoostQParserPlugin
extends QParserPlugin

Create a boosted query from the input value. The main value is the query to be boosted.
Other parameters: b, the function query to use as the boost.

Example: {!boost b=log(popularity)}foo creates a query "foo" which is boosted (scores are multiplied) by the function query log(popularity). The query to be boosted may be of any type.

Example: {!boost b=recip(ms(NOW,mydatefield),3.16e-11,1,1)}foo creates a query "foo" which is boosted by the date boosting function referenced in ReciprocalFloatFunction

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.solr.core.SolrInfoBean

SolrInfoBean.Category, SolrInfoBean.Group

Field Summary

Fields

Modifier and Type	Field and Description
static String	BOOSTFUNC
static String	NAME

Fields inherited from class org.apache.solr.search.QParserPlugin

DEFAULT_QTYPE, standardPlugins

Constructor Summary

Constructors

Constructor and Description
BoostQParserPlugin()

Method Summary

Modifier and Type	Method and Description
QParser	createParser(String qstr, SolrParams localParams, SolrParams params, SolrQueryRequest req) return a QParser

Methods inherited from class org.apache.solr.search.QParserPlugin

getCategory, getDescription, getMetricNames, getName, init

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.solr.core.SolrInfoBean

getMetricRegistry, getMetricsSnapshot, registerMetricName

Field Detail

NAME

public static final String NAME

See Also:

Constant Field Values

BOOSTFUNC

public static String BOOSTFUNC

Constructor Detail

BoostQParserPlugin

public BoostQParserPlugin()

Method Detail

createParser

public QParser createParser(String qstr,
                            SolrParams localParams,
                            SolrParams params,
                            SolrQueryRequest req)

Description copied from class: QParserPlugin

return a QParser

Specified by:

createParser in class QParserPlugin