public class MultiFieldQueryParser extends QueryParser
QueryParser.Operator
QueryParserBase.MethodRemovedUseAnother
jj_nt, token, token_source
AND_OPERATOR, OR_OPERATOR
_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 |
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MultiFieldQueryParser(Version matchVersion,
String[] fields,
Analyzer analyzer)
Creates a MultiFieldQueryParser.
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MultiFieldQueryParser(Version matchVersion,
String[] fields,
Analyzer analyzer,
Map<String,Float> boosts)
Creates a MultiFieldQueryParser.
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Modifier and Type | Method and Description |
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static Query |
parse(Version matchVersion,
String[] queries,
String[] fields,
Analyzer analyzer)
Parses a query which searches on the fields specified.
|
static Query |
parse(Version matchVersion,
String[] queries,
String[] fields,
BooleanClause.Occur[] flags,
Analyzer analyzer)
Parses a query, searching on the fields specified.
|
static Query |
parse(Version matchVersion,
String query,
String[] fields,
BooleanClause.Occur[] flags,
Analyzer analyzer)
Parses a query, searching on the fields specified.
|
Clause, Conjunction, disable_tracing, enable_tracing, generateParseException, getNextToken, getToken, Modifiers, Query, ReInit, ReInit, Term, TopLevelQuery
escape, getAllowLeadingWildcard, getAnalyzeRangeTerms, getAutoGeneratePhraseQueries, getDateResolution, getDefaultOperator, getField, getFuzzyMinSim, getFuzzyPrefixLength, getLocale, getLowercaseExpandedTerms, getMultiTermRewriteMethod, getPhraseSlop, getTimeZone, init, parse, setAllowLeadingWildcard, setAnalyzeRangeTerms, setAutoGeneratePhraseQueries, setDateResolution, setDateResolution, setDefaultOperator, setFuzzyMinSim, setFuzzyPrefixLength, setLocale, setLowercaseExpandedTerms, setMultiTermRewriteMethod, setPhraseSlop, setTimeZone
createBooleanQuery, createBooleanQuery, createMinShouldMatchQuery, createPhraseQuery, createPhraseQuery, getAnalyzer, getEnablePositionIncrements, setAnalyzer, setEnablePositionIncrements
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
getAnalyzer, getEnablePositionIncrements, setEnablePositionIncrements
public MultiFieldQueryParser(Version matchVersion, String[] fields, Analyzer analyzer, Map<String,Float> boosts)
It will, when parse(String query)
is called, construct a query like this (assuming the query consists of
two terms and you specify the two fields title
and body
):
(title:term1 body:term1) (title:term2 body:term2)
When setDefaultOperator(AND_OPERATOR) is set, the result will be:
+(title:term1 body:term1) +(title:term2 body:term2)
When you pass a boost (title=>5 body=>10) you can get
+(title:term1^5.0 body:term1^10.0) +(title:term2^5.0 body:term2^10.0)
In other words, all the query's terms must appear, but it doesn't matter in what fields they appear.
public MultiFieldQueryParser(Version matchVersion, String[] fields, Analyzer analyzer)
It will, when parse(String query)
is called, construct a query like this (assuming the query consists of
two terms and you specify the two fields title
and body
):
(title:term1 body:term1) (title:term2 body:term2)
When setDefaultOperator(AND_OPERATOR) is set, the result will be:
+(title:term1 body:term1) +(title:term2 body:term2)
In other words, all the query's terms must appear, but it doesn't matter in what fields they appear.
public static Query parse(Version matchVersion, String[] queries, String[] fields, Analyzer analyzer) throws ParseException
If x fields are specified, this effectively constructs:
(field1:query1) (field2:query2) (field3:query3)...(fieldx:queryx)
matchVersion
- Lucene version to match; this is passed through to QueryParser.queries
- Queries strings to parsefields
- Fields to search onanalyzer
- Analyzer to useParseException
- if query parsing failsIllegalArgumentException
- if the length of the queries array differs
from the length of the fields arraypublic static Query parse(Version matchVersion, String query, String[] fields, BooleanClause.Occur[] flags, Analyzer analyzer) throws ParseException
Usage:
String[] fields = {"filename", "contents", "description"};
BooleanClause.Occur[] flags = {BooleanClause.Occur.SHOULD,
BooleanClause.Occur.MUST,
BooleanClause.Occur.MUST_NOT};
MultiFieldQueryParser.parse("query", fields, flags, analyzer);
The code above would construct a query:
(filename:query) +(contents:query) -(description:query)
matchVersion
- Lucene version to match; this is passed through to QueryParser.query
- Query string to parsefields
- Fields to search onflags
- Flags describing the fieldsanalyzer
- Analyzer to useParseException
- if query parsing failsIllegalArgumentException
- if the length of the fields array differs
from the length of the flags arraypublic static Query parse(Version matchVersion, String[] queries, String[] fields, BooleanClause.Occur[] flags, Analyzer analyzer) throws ParseException
Usage:
String[] query = {"query1", "query2", "query3"};
String[] fields = {"filename", "contents", "description"};
BooleanClause.Occur[] flags = {BooleanClause.Occur.SHOULD,
BooleanClause.Occur.MUST,
BooleanClause.Occur.MUST_NOT};
MultiFieldQueryParser.parse(query, fields, flags, analyzer);
The code above would construct a query:
(filename:query1) +(contents:query2) -(description:query3)
matchVersion
- Lucene version to match; this is passed through to QueryParser.queries
- Queries string to parsefields
- Fields to search onflags
- Flags describing the fieldsanalyzer
- Analyzer to useParseException
- if query parsing failsIllegalArgumentException
- if the length of the queries, fields,
and flags array differCopyright © 2010 - 2020 Adobe. All Rights Reserved