org.apache.solr.search
Class BoostQParserPlugin

java.lang.Object
  org.apache.solr.search.QParserPlugin
      org.apache.solr.search.BoostQParserPlugin

All Implemented Interfaces:

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

Field Summary

static String	BOOSTFUNC
static String	NAME

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

DEFAULT_QTYPE, standardPlugins

Constructor Summary

BoostQParserPlugin()

Method Summary

QParser	createParser(String qstr, SolrParams localParams, SolrParams params, SolrQueryRequest req) return a QParser
void	init(NamedList args)

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static String NAME

BOOSTFUNC

public static String BOOSTFUNC

Constructor Detail

BoostQParserPlugin

public BoostQParserPlugin()

Method Detail

init

public void init(NamedList args)

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