Class QueryParser

This class is generated by JavaCC. The only method that clients should need to call is Parse(String).

This parser generates queries that make use of position information (Span queries). It provides positional operators (w and n) that accept a numeric distance, as well as boolean operators (and, or, and not, wildcards (/// and ?), quoting (with "), and boosting (via ^).

The operators (W, N, AND, OR, NOT) can be expressed lower-cased or upper-cased, and the non-unary operators (everything but NOT) support both infix (a AND b AND c) and prefix AND(a, b, c) notation.

The W and N operators express a positional relationship among their operands. N is ordered, and W is unordered. The distance is 1 by default, meaning the operands are adjacent, or may be provided as a prefix from 2-99. So, for example, 3W(a, b) means that terms a and b must appear within three positions of each other, or in other words, up to two terms may appear between a and b.

Inheritance
System.Object
QueryParser
Namespace: Lucene.Net.QueryParsers.Surround.Parser
Assembly: Lucene.Net.QueryParser.dll
Syntax
public class QueryParser : object

Constructors

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QueryParser()

Declaration
public QueryParser()
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QueryParser(ICharStream)

Constructor with user supplied ICharStream.

Declaration
public QueryParser(ICharStream stream)
Parameters
Type Name Description
ICharStream stream
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QueryParser(QueryParserTokenManager)

Constructor with generated Token Manager.

Declaration
public QueryParser(QueryParserTokenManager tm)
Parameters
Type Name Description
QueryParserTokenManager tm

Properties

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Jj_nt

Next token.

Declaration
public Token Jj_nt { get; set; }
Property Value
Type Description
Token
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Token

Current token.

Declaration
public Token Token { get; set; }
Property Value
Type Description
Token
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TokenSource

Generated Token Manager.

Declaration
public QueryParserTokenManager TokenSource { get; set; }
Property Value
Type Description
QueryParserTokenManager

Methods

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AllowedSuffix(String)

Declaration
protected virtual bool AllowedSuffix(string suffixed)
Parameters
Type Name Description
System.String suffixed
Returns
Type Description
System.Boolean
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AllowedTruncation(String)

Declaration
protected virtual bool AllowedTruncation(string truncated)
Parameters
Type Name Description
System.String truncated
Returns
Type Description
System.Boolean
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AndQuery()

Declaration
public SrndQuery AndQuery()
Returns
Type Description
SrndQuery
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CheckDistanceSubQueries(DistanceQuery, String)

Declaration
protected static void CheckDistanceSubQueries(DistanceQuery distq, string opName)
Parameters
Type Name Description
DistanceQuery distq
System.String opName
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Disable_tracing()

Disable tracing.

Declaration
public void Disable_tracing()
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Enable_tracing()

Enable tracing.

Declaration
public void Enable_tracing()
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FieldsQuery()

Declaration
public SrndQuery FieldsQuery()
Returns
Type Description
SrndQuery
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FieldsQueryList()

Declaration
public IList<SrndQuery> FieldsQueryList()
Returns
Type Description
IList<SrndQuery>
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GenerateParseException()

Generate ParseException.

Declaration
public virtual ParseException GenerateParseException()
Returns
Type Description
ParseException
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GetAndQuery(IList<SrndQuery>, Boolean, Token)

Declaration
protected virtual SrndQuery GetAndQuery(IList<SrndQuery> queries, bool infix, Token andToken)
Parameters
Type Name Description
IList<SrndQuery> queries
System.Boolean infix
Token andToken
Returns
Type Description
SrndQuery
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GetDistanceQuery(IList<SrndQuery>, Boolean, Token, Boolean)

Declaration
protected virtual SrndQuery GetDistanceQuery(IList<SrndQuery> queries, bool infix, Token dToken, bool ordered)
Parameters
Type Name Description
IList<SrndQuery> queries
System.Boolean infix
Token dToken
System.Boolean ordered
Returns
Type Description
SrndQuery
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GetFieldsQuery(SrndQuery, IList<String>)

Declaration
protected virtual SrndQuery GetFieldsQuery(SrndQuery q, IList<string> fieldNames)
Parameters
Type Name Description
SrndQuery q
IList<System.String> fieldNames
Returns
Type Description
SrndQuery
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GetNextToken()

Get the next Token.

Declaration
public Token GetNextToken()
Returns
Type Description
Token
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GetNotQuery(IList<SrndQuery>, Token)

Declaration
protected virtual SrndQuery GetNotQuery(IList<SrndQuery> queries, Token notToken)
Parameters
Type Name Description
IList<SrndQuery> queries
Token notToken
Returns
Type Description
SrndQuery
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GetOpDistance(String)

Declaration
protected static int GetOpDistance(string distanceOp)
Parameters
Type Name Description
System.String distanceOp
Returns
Type Description
System.Int32
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GetOrQuery(IList<SrndQuery>, Boolean, Token)

Declaration
protected virtual SrndQuery GetOrQuery(IList<SrndQuery> queries, bool infix, Token orToken)
Parameters
Type Name Description
IList<SrndQuery> queries
System.Boolean infix
Token orToken
Returns
Type Description
SrndQuery
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GetPrefixQuery(String, Boolean)

Declaration
protected virtual SrndQuery GetPrefixQuery(string prefix, bool quoted)
Parameters
Type Name Description
System.String prefix
System.Boolean quoted
Returns
Type Description
SrndQuery
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GetTermQuery(String, Boolean)

Declaration
protected virtual SrndQuery GetTermQuery(string term, bool quoted)
Parameters
Type Name Description
System.String term
System.Boolean quoted
Returns
Type Description
SrndQuery
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GetToken(Int32)

Get the specific Token.

Declaration
public Token GetToken(int index)
Parameters
Type Name Description
System.Int32 index
Returns
Type Description
Token
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GetTruncQuery(String)

Declaration
protected virtual SrndQuery GetTruncQuery(string truncated)
Parameters
Type Name Description
System.String truncated
Returns
Type Description
SrndQuery
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NotQuery()

Declaration
public SrndQuery NotQuery()
Returns
Type Description
SrndQuery
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NQuery()

Declaration
public SrndQuery NQuery()
Returns
Type Description
SrndQuery
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OptionalFields()

Declaration
public IList<string> OptionalFields()
Returns
Type Description
IList<System.String>
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OptionalWeights(SrndQuery)

Declaration
public void OptionalWeights(SrndQuery q)
Parameters
Type Name Description
SrndQuery q
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OrQuery()

Declaration
public SrndQuery OrQuery()
Returns
Type Description
SrndQuery
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Parse(String)

Declaration
public static SrndQuery Parse(string query)
Parameters
Type Name Description
System.String query
Returns
Type Description
SrndQuery
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Parse2(String)

Declaration
public virtual SrndQuery Parse2(string query)
Parameters
Type Name Description
System.String query
Returns
Type Description
SrndQuery
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PrefixOperatorQuery()

Declaration
public SrndQuery PrefixOperatorQuery()
Returns
Type Description
SrndQuery
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PrimaryQuery()

Declaration
public SrndQuery PrimaryQuery()
Returns
Type Description
SrndQuery
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ReInit(ICharStream)

Reinitialize.

Declaration
public virtual void ReInit(ICharStream stream)
Parameters
Type Name Description
ICharStream stream
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ReInit(QueryParserTokenManager)

Reinitialize.

Declaration
public virtual void ReInit(QueryParserTokenManager tm)
Parameters
Type Name Description
QueryParserTokenManager tm
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SimpleTerm()

Declaration
public SrndQuery SimpleTerm()
Returns
Type Description
SrndQuery
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TopSrndQuery()

Declaration
public SrndQuery TopSrndQuery()
Returns
Type Description
SrndQuery
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WQuery()

Declaration
public SrndQuery WQuery()
Returns
Type Description
SrndQuery