Package org.apache.solr.search

Class MinHashQParser

java.lang.Object

org.apache.solr.search.QParser

org.apache.solr.search.MinHashQParser

public class MinHashQParser
extends QParser

The query parser can be used in two modes 1) where text is analysed and generates min hashes as part of normal lucene analysis 2) where text is pre-analysed and hashes are added as string to the index An analyzer can still be defined to support text based query against the text field

Options: sim - required similary - default is 1 tp - required true positive rate - default is 1 field - when providing text the analyser for this field is used to generate the finger print sep - a separator for provided hashes analyzer_field - the field to use for for analysing suppplied text - if not supplied defaults to field

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
MinHashQParser(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()	Create and return the Query object represented by qstr.

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

addDebugInfo, getDefaultHighlightFields, getFlags, getHighlightQuery, getLocalParams, getParam, getParams, getParser, getParser, getParser, getPrefixQueryMinPrefixLength, getQuery, getReq, getSortSpec, getString, isFilter, 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 Detail

MinHashQParser

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

Method Detail

parse

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

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:

SyntaxError

See Also:

QParser.getQuery()