Package org.apache.lucene.queryparser.complexPhrase

Class ComplexPhraseQueryParser

java.lang.Object

org.apache.lucene.util.QueryBuilder

org.apache.lucene.queryparser.classic.QueryParserBase

org.apache.lucene.queryparser.classic.QueryParser

org.apache.lucene.queryparser.complexPhrase.ComplexPhraseQueryParser

All Implemented Interfaces:

QueryParserConstants, CommonQueryParserConfiguration

public class ComplexPhraseQueryParser
extends QueryParser

QueryParser which permits complex phrase query syntax eg "(john jon jonathan~) peters*".

Performs potentially multiple passes over Query text to parse any nested logic in PhraseQueries. - First pass takes any PhraseQuery content between quotes and stores for subsequent pass. All other query content is parsed as normal - Second pass parses any stored PhraseQuery content, checking all embedded clauses are referring to the same field and therefore can be rewritten as Span queries. All PhraseQuery clauses are expressed as ComplexPhraseQuery objects

This could arguably be done in one pass using a new QueryParser but here I am working within the constraints of the existing parser as a base class. This currently simply feeds all phrase content through an analyzer to select phrase terms - any "special" syntax such as * ~ * etc are not given special status

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.queryparser.classic.QueryParser

QueryParser.Operator

Nested classes/interfaces inherited from class org.apache.lucene.queryparser.classic.QueryParserBase

QueryParserBase.MethodRemovedUseAnother

Field Summary

Fields inherited from class org.apache.lucene.queryparser.classic.QueryParser

jj_nt, token, token_source

Fields inherited from class org.apache.lucene.queryparser.classic.QueryParserBase

AND_OPERATOR, OR_OPERATOR

Fields inherited from interface org.apache.lucene.queryparser.classic.QueryParserConstants

_ESCAPED_CHAR, _NUM_CHAR, _QUOTED_CHAR, _TERM_CHAR, _TERM_START_CHAR, _WHITESPACE, AND, BAREOPER, Boost, CARAT, COLON, DEFAULT, EOF, FUZZY_SLOP, LPAREN, MINUS, NOT, NUMBER, OR, PLUS, PREFIXTERM, QUOTED, Range, RANGE_GOOP, RANGE_QUOTED, RANGE_TO, RANGEEX_END, RANGEEX_START, RANGEIN_END, RANGEIN_START, REGEXPTERM, RPAREN, STAR, TERM, tokenImage, WILDTERM

Constructor Summary

Constructors

Constructor	Description
ComplexPhraseQueryParser(Version matchVersion, String f, Analyzer a)

Method Summary

Modifier and Type	Method	Description
Query	parse(String query)	Parses a query string, returning a Query.

Methods inherited from class org.apache.lucene.queryparser.classic.QueryParser

Clause, Conjunction, disable_tracing, enable_tracing, generateParseException, getNextToken, getToken, Modifiers, Query, ReInit, ReInit, Term, TopLevelQuery

Methods inherited from class org.apache.lucene.queryparser.classic.QueryParserBase

escape, getAllowLeadingWildcard, getAnalyzeRangeTerms, getAutoGeneratePhraseQueries, getDateResolution, getDefaultOperator, getField, getFuzzyMinSim, getFuzzyPrefixLength, getLocale, getLowercaseExpandedTerms, getMultiTermRewriteMethod, getPhraseSlop, getTimeZone, init, setAllowLeadingWildcard, setAnalyzeRangeTerms, setAutoGeneratePhraseQueries, setDateResolution, setDateResolution, setDefaultOperator, setFuzzyMinSim, setFuzzyPrefixLength, setLocale, setLowercaseExpandedTerms, setMultiTermRewriteMethod, setPhraseSlop, setTimeZone

Methods inherited from class org.apache.lucene.util.QueryBuilder

createBooleanQuery, createBooleanQuery, createMinShouldMatchQuery, createPhraseQuery, createPhraseQuery, getAnalyzer, getEnablePositionIncrements, setAnalyzer, setEnablePositionIncrements

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.lucene.queryparser.flexible.standard.CommonQueryParserConfiguration

getAnalyzer, getEnablePositionIncrements, setEnablePositionIncrements

Constructor Details

ComplexPhraseQueryParser

public ComplexPhraseQueryParser(Version matchVersion,
 String f,
 Analyzer a)

Method Details

parse

public Query parse(String query)
            throws ParseException

Description copied from class: QueryParserBase

Parses a query string, returning a Query.

Overrides:

parse in class QueryParserBase

Parameters:

query - the query string to be parsed.

Throws:

ParseException - if the parsing fails