Package org.apache.solr.search

Class MaxScoreQParser

java.lang.Object

org.apache.solr.search.QParser

org.apache.solr.search.LuceneQParser

org.apache.solr.search.MaxScoreQParser

public class MaxScoreQParser
extends LuceneQParser

See Also:

• MaxScoreQParserPlugin

Field Summary

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

FLAG_FILTER, flags, localParams, localParamsEnd, params, qstr, query, recurseCount, req, stringIncludingLocalParams, valFollowedParams

Constructor Summary

Constructors

Constructor	Description
MaxScoreQParser(String qstr, org.apache.solr.common.params.SolrParams localParams, org.apache.solr.common.params.SolrParams params, SolrQueryRequest req)

Method Summary

Modifier and Type	Method	Description
org.apache.lucene.search.Query	parse()	Parses the query exactly like the Lucene parser does, but delegates all SHOULD clauses to DisjunctionMaxQuery with meaning only the clause with the max score will contribute to the overall score, unless the tie parameter is specified.

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

getDefaultHighlightFields

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

addDebugInfo, getFlags, getHighlightQuery, getLocalParams, getParam, getParams, getParser, getParser, getParser, getPrefixQueryMinPrefixLength, getQuery, getReq, getSortSpec, getString, isFilter, parseAsValueSource, setFlags, setIsFilter, setLocalParams, setParams, setReq, setString, subQuery

Methods inherited from class java.lang.Object

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

Constructor Details

MaxScoreQParser

public MaxScoreQParser(String qstr,
 org.apache.solr.common.params.SolrParams localParams,
 org.apache.solr.common.params.SolrParams params,
 SolrQueryRequest req)

Method Details

parse

public org.apache.lucene.search.Query parse()
                                     throws SyntaxError

Parses the query exactly like the Lucene parser does, but delegates all SHOULD clauses to DisjunctionMaxQuery with meaning only the clause with the max score will contribute to the overall score, unless the tie parameter is specified.
The max() is only calculated from the SHOULD clauses. Any MUST clauses will be passed through as separate BooleanClauses and thus always contribute to the score.

Overrides:

parse in class LuceneQParser

Returns:

the resulting Query

Throws:

SyntaxError - if parsing fails

See Also:

• QParser.getQuery()