org.apache.solr.search
Class DisMaxQParser

java.lang.Object
  org.apache.solr.search.QParser
      org.apache.solr.search.DisMaxQParser

public class DisMaxQParser
extends QParser

Query parser for dismax queries

Note: This API is experimental and may change in non backward-compatible ways in the future

Field Summary

protected QParser	altQParser
protected Query	altUserQuery
protected String[]	boostParams
protected List<Query>	boostQueries
protected Query	parsedUserQuery
protected Map<String,Float>	queryFields

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

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

Constructor Summary

DisMaxQParser(String qstr, SolrParams localParams, SolrParams params, SolrQueryRequest req)

Method Summary

protected void	addBoostFunctions(BooleanQuery query, SolrParams solrParams)
protected void	addBoostQuery(BooleanQuery query, SolrParams solrParams)
void	addDebugInfo(NamedList<Object> debugInfo)
protected boolean	addMainQuery(BooleanQuery query, SolrParams solrParams) Adds the main query to the query argument.
protected Query	getAlternateUserQuery(SolrParams solrParams)
String[]	getDefaultHighlightFields()
Query	getHighlightQuery()
protected SolrPluginUtils.DisjunctionMaxQueryParser	getParser(Map<String,Float> fields, String paramName, SolrParams solrParams, float tiebreaker)
protected Query	getPhraseQuery(String userQuery, SolrPluginUtils.DisjunctionMaxQueryParser pp)
protected Query	getUserQuery(String userQuery, SolrPluginUtils.DisjunctionMaxQueryParser up, SolrParams solrParams)
Query	parse() Create and return the Query object represented by qstr.
static String	parseMinShouldMatch(IndexSchema schema, SolrParams params) Applies the appropriate default rules for the "mm" param based on the effective value of the "q.op" param
static Map<String,Float>	parseQueryFields(IndexSchema indexSchema, SolrParams solrParams) Uses SolrPluginUtils.parseFieldBoosts(String) with the 'qf' parameter.

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

getLocalParams, getPaging, getParam, getParams, getParser, getQuery, getReq, getSort, getString, setLocalParams, setParams, setReq, setString, subQuery

Methods inherited from class java.lang.Object

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

Field Detail

queryFields

protected Map<String,Float> queryFields

parsedUserQuery

protected Query parsedUserQuery

boostParams

protected String[] boostParams

boostQueries

protected List<Query> boostQueries

altUserQuery

protected Query altUserQuery

altQParser

protected QParser altQParser

Constructor Detail

DisMaxQParser

public DisMaxQParser(String qstr,
                     SolrParams localParams,
                     SolrParams params,
                     SolrQueryRequest req)

Method Detail

parseMinShouldMatch

public static String parseMinShouldMatch(IndexSchema schema,
                                         SolrParams params)

Applies the appropriate default rules for the "mm" param based on the effective value of the "q.op" param

See Also:

QueryParsing.getQueryParserDefaultOperator(org.apache.solr.schema.IndexSchema, java.lang.String), QueryParsing.OP, DisMaxParams.MM

parseQueryFields

public static Map<String,Float> parseQueryFields(IndexSchema indexSchema,
                                                 SolrParams solrParams)
                                          throws ParseException

Uses SolrPluginUtils.parseFieldBoosts(String) with the 'qf' parameter. Falls back to the 'df' parameter or IndexSchema.getDefaultSearchFieldName().

Throws:

ParseException

parse

public Query parse()
            throws ParseException

Description copied from class: QParser

Create and return the Query object represented by qstr. Null MAY be returned to signify there was no input (e.g. no query string) to parse.

Specified by:

parse in class QParser

Throws:

ParseException

See Also:

QParser.getQuery()

addBoostFunctions

protected void addBoostFunctions(BooleanQuery query,
                                 SolrParams solrParams)
                          throws ParseException

Throws:

ParseException

addBoostQuery

protected void addBoostQuery(BooleanQuery query,
                             SolrParams solrParams)
                      throws ParseException

Throws:

ParseException

addMainQuery

protected boolean addMainQuery(BooleanQuery query,
                               SolrParams solrParams)
                        throws ParseException

Adds the main query to the query argument. If its blank then false is returned.

Throws:

ParseException

getAlternateUserQuery

protected Query getAlternateUserQuery(SolrParams solrParams)
                               throws ParseException

Throws:

ParseException

getPhraseQuery

protected Query getPhraseQuery(String userQuery,
                               SolrPluginUtils.DisjunctionMaxQueryParser pp)
                        throws ParseException

Throws:

ParseException

getUserQuery

protected Query getUserQuery(String userQuery,
                             SolrPluginUtils.DisjunctionMaxQueryParser up,
                             SolrParams solrParams)
                      throws ParseException

Throws:

ParseException

getParser

protected SolrPluginUtils.DisjunctionMaxQueryParser getParser(Map<String,Float> fields,
                                                              String paramName,
                                                              SolrParams solrParams,
                                                              float tiebreaker)

getDefaultHighlightFields

public String[] getDefaultHighlightFields()

Overrides:

getDefaultHighlightFields in class QParser

getHighlightQuery

public Query getHighlightQuery()
                        throws ParseException

Overrides:

getHighlightQuery in class QParser

Throws:

ParseException

addDebugInfo

public void addDebugInfo(NamedList<Object> debugInfo)

Overrides:

addDebugInfo in class QParser