Package org.apache.lucene.queryparser.flexible.standard.parser

Class StandardSyntaxParser

java.lang.Object

org.apache.lucene.queryparser.flexible.standard.parser.StandardSyntaxParser

All Implemented Interfaces:

SyntaxParser, StandardSyntaxParserConstants

public class StandardSyntaxParser
extends Object
implements SyntaxParser, StandardSyntaxParserConstants

Parser for the standard Lucene syntax

Field Summary

Fields

Modifier and Type	Field	Description
Token	jj_nt	Next token.
Token	token	Current token.
StandardSyntaxParserTokenManager	token_source	Generated Token Manager.

Fields inherited from interface org.apache.lucene.queryparser.flexible.standard.parser.StandardSyntaxParserConstants

_ESCAPED_CHAR, _NUM_CHAR, _QUOTED_CHAR, _TERM_CHAR, _TERM_START_CHAR, _WHITESPACE, AFTER, AND, ATLEAST, BEFORE, CARAT, CONTAINED_BY, CONTAINING, DEFAULT, EOF, EXTEND, FN_OR, FN_PREFIX, Function, FUZZYTERM, LPAREN, MAXGAPS, MAXWIDTH, MINUS, NON_OVERLAPPING, NOT, NOT_CONTAINED_BY, NOT_CONTAINING, NOT_WITHIN, NUMBER, OP_COLON, OP_EQUAL, OP_LESSTHAN, OP_LESSTHANEQ, OP_MORETHAN, OP_MORETHANEQ, OR, ORDERED, OVERLAPPING, PHRASE, PLUS, QUOTED, Range, RANGE_GOOP, RANGE_QUOTED, RANGE_TO, RANGEEX_END, RANGEEX_START, RANGEIN_END, RANGEIN_START, REGEXPTERM, RPAREN, TERM, TILDE, tokenImage, UNORDERED, UNORDERED_NO_OVERLAPS, WILDCARD, WITHIN

Constructor Summary

Constructors

Constructor	Description
StandardSyntaxParser()
StandardSyntaxParser(CharStream stream)	Constructor with user supplied CharStream.
StandardSyntaxParser(StandardSyntaxParserTokenManager tm)	Constructor with generated Token Manager.

Method Summary

Modifier and Type	Method	Description
void	disable_tracing()	Disable tracing.
void	enable_tracing()	Enable tracing.
ParseException	generateParseException()	Generate ParseException.
Token	getNextToken()	Get the next Token.
Token	getToken(int index)	Get the specific Token.
QueryNode	parse(CharSequence query, CharSequence field)	Parses a query string, returning a QueryNode.
static float	parseFloat(Token token)
static int	parseInt(Token token)
void	ReInit(CharStream stream)	Reinitialise.
void	ReInit(StandardSyntaxParserTokenManager tm)	Reinitialise.
QueryNode	TopLevelQuery(CharSequence field)
boolean	trace_enabled()	Trace enabled.

Methods inherited from class java.lang.Object

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

Field Detail

token_source

public StandardSyntaxParserTokenManager token_source

Generated Token Manager.

token

public Token token

Current token.

jj_nt

public Token jj_nt

Next token.

Constructor Detail

StandardSyntaxParser

public StandardSyntaxParser()

StandardSyntaxParser

public StandardSyntaxParser(CharStream stream)

Constructor with user supplied CharStream.

StandardSyntaxParser

public StandardSyntaxParser(StandardSyntaxParserTokenManager tm)

Constructor with generated Token Manager.

Method Detail

parse

public QueryNode parse(CharSequence query,
                       CharSequence field)
                throws QueryNodeParseException

Parses a query string, returning a QueryNode.

Specified by:

parse in interface SyntaxParser

Parameters:

query - the query string to be parsed.

field - - default field name

Returns:

QueryNode tree

Throws:

ParseException - if the parsing fails

QueryNodeParseException

parseFloat

public static float parseFloat(Token token)

parseInt

public static int parseInt(Token token)

TopLevelQuery

public final QueryNode TopLevelQuery(CharSequence field)
                              throws ParseException

Throws:

ParseException

ReInit

public void ReInit(CharStream stream)

Reinitialise.

ReInit

public void ReInit(StandardSyntaxParserTokenManager tm)

Reinitialise.

getNextToken

public final Token getNextToken()

Get the next Token.

getToken

public final Token getToken(int index)

Get the specific Token.

generateParseException

public ParseException generateParseException()

Generate ParseException.

trace_enabled

public final boolean trace_enabled()

Trace enabled.

enable_tracing

public final void enable_tracing()

Enable tracing.

disable_tracing

public final void disable_tracing()

Disable tracing.