public class ComplexPhraseQueryParser extends QueryParser
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
QueryParser.OperatorQueryBuilder.TermAndBoostDEFAULT_SPLIT_ON_WHITESPACE, jj_nt, token, token_sourceAND_OPERATOR, field, OR_OPERATORanalyzer, autoGenerateMultiTermSynonymsPhraseQuery, enableGraphQueries, enablePositionIncrements_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 and Description |
|---|
ComplexPhraseQueryParser(String f,
Analyzer a) |
| Modifier and Type | Method and Description |
|---|---|
protected Query |
getFieldQuery(String field,
String queryText,
int slop)
Base implementation delegates to
QueryParserBase.getFieldQuery(String,String,boolean). |
protected Query |
getFuzzyQuery(String field,
String termStr,
float minSimilarity)
Factory method for generating a query (similar to
QueryParserBase.getWildcardQuery(java.lang.String, java.lang.String)). |
protected Query |
getRangeQuery(String field,
String part1,
String part2,
boolean startInclusive,
boolean endInclusive) |
protected Query |
getWildcardQuery(String field,
String termStr)
Factory method for generating a query.
|
protected Query |
newRangeQuery(String field,
String part1,
String part2,
boolean startInclusive,
boolean endInclusive)
Builds a new
TermRangeQuery instance |
protected Query |
newTermQuery(Term term,
float boost) |
Query |
parse(String query)
Parses a query string, returning a
Query. |
void |
setInOrder(boolean inOrder)
When
inOrder is true, the search terms must
exists in the documents as the same order as in query. |
Clause, Conjunction, disable_tracing, enable_tracing, generateParseException, getNextToken, getSplitOnWhitespace, getToken, Modifiers, MultiTerm, Query, ReInit, ReInit, setAutoGeneratePhraseQueries, setSplitOnWhitespace, Term, TopLevelQueryaddClause, addMultiTermClauses, escape, getAllowLeadingWildcard, getAutoGeneratePhraseQueries, getBooleanQuery, getDateResolution, getDefaultOperator, getField, getFieldQuery, getFuzzyMinSim, getFuzzyPrefixLength, getLocale, getMaxDeterminizedStates, getMultiTermRewriteMethod, getPhraseSlop, getPrefixQuery, getRegexpQuery, getTimeZone, init, newBooleanClause, newFieldQuery, newFuzzyQuery, newMatchAllDocsQuery, newPrefixQuery, newRegexpQuery, newWildcardQuery, setAllowLeadingWildcard, setDateResolution, setDateResolution, setDefaultOperator, setFuzzyMinSim, setFuzzyPrefixLength, setLocale, setMaxDeterminizedStates, setMultiTermRewriteMethod, setPhraseSlop, setTimeZoneadd, analyzeBoolean, analyzeGraphBoolean, analyzeGraphPhrase, analyzeMultiBoolean, analyzeMultiPhrase, analyzePhrase, analyzeTerm, createBooleanQuery, createBooleanQuery, createFieldQuery, createFieldQuery, createMinShouldMatchQuery, createPhraseQuery, createPhraseQuery, createSpanQuery, getAnalyzer, getAutoGenerateMultiTermSynonymsPhraseQuery, getEnableGraphQueries, getEnablePositionIncrements, newBooleanQuery, newGraphSynonymQuery, newMultiPhraseQueryBuilder, newSynonymQuery, setAnalyzer, setAutoGenerateMultiTermSynonymsPhraseQuery, setEnableGraphQueries, setEnablePositionIncrementsclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitgetAnalyzer, getEnablePositionIncrements, setEnablePositionIncrementspublic void setInOrder(boolean inOrder)
inOrder is true, the search terms must
exists in the documents as the same order as in query.inOrder - parameter to choose between ordered or un-ordered proximity searchprotected Query getFieldQuery(String field, String queryText, int slop)
QueryParserBaseQueryParserBase.getFieldQuery(String,String,boolean).
This method may be overridden, for example, to return
a SpanNearQuery instead of a PhraseQuery.getFieldQuery in class QueryParserBasepublic Query parse(String query) throws ParseException
QueryParserBaseQuery.parse in class QueryParserBasequery - the query string to be parsed.ParseException - if the parsing failsprotected Query newTermQuery(Term term, float boost)
newTermQuery in class QueryBuilderprotected Query getWildcardQuery(String field, String termStr) throws ParseException
QueryParserBaseDepending on settings, prefix term may be lower-cased automatically. It will not go through the default Analyzer, however, since normal Analyzers are unlikely to work properly with wildcard templates.
Can be overridden by extending classes, to provide custom handling for wildcard queries, which may be necessary due to missing analyzer calls.
getWildcardQuery in class QueryParserBasefield - Name of the field query will use.termStr - Term token that contains one or more wild card
characters (? or *), but is not simple prefix termQuery built for the termParseException - throw in overridden method to disallowprotected Query getRangeQuery(String field, String part1, String part2, boolean startInclusive, boolean endInclusive) throws ParseException
getRangeQuery in class QueryParserBaseParseExceptionprotected Query newRangeQuery(String field, String part1, String part2, boolean startInclusive, boolean endInclusive)
QueryParserBaseTermRangeQuery instancenewRangeQuery in class QueryParserBasefield - Fieldpart1 - minpart2 - maxstartInclusive - true if the start of the range is inclusiveendInclusive - true if the end of the range is inclusiveTermRangeQuery instanceprotected Query getFuzzyQuery(String field, String termStr, float minSimilarity) throws ParseException
QueryParserBaseQueryParserBase.getWildcardQuery(java.lang.String, java.lang.String)). Called when parser parses
an input term token that has the fuzzy suffix (~) appended.getFuzzyQuery in class QueryParserBasefield - Name of the field query will use.termStr - Term token to use for building term for the queryQuery built for the termParseException - throw in overridden method to disallowCopyright © 2000-2021 Apache Software Foundation. All Rights Reserved.