org.apache.solr.search
Class BoostQParserPlugin

java.lang.Object
  extended by org.apache.solr.search.QParserPlugin
      extended by org.apache.solr.search.BoostQParserPlugin
All Implemented Interfaces:
SolrInfoMBean, 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.SolrInfoMBean
SolrInfoMBean.Category
 
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 org.apache.solr.search.QParserPlugin
getCategory, getDescription, getDocs, getName, getSource, getStatistics, getVersion
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

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

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


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