com.alibaba.druid.sql.parser

类 Lexer

java.lang.Object

com.alibaba.druid.sql.parser.Lexer

直接已知子类:

DB2Lexer, MySqlLexer, OdpsLexer, OracleLexer, PGLexer, SQLServerLexer

public class Lexer
extends Object

作者:

wenshao [szujobs@hotmail.com]

嵌套类概要

嵌套类

限定符和类型	类和说明
static interface	Lexer.CommentHandler

构造器概要

构造器

构造器和说明
Lexer(char[] input, int inputLength, boolean skipComment)
Lexer(String input)
Lexer(String input, boolean skipComment)
Lexer(String input, Lexer.CommentHandler commentHandler)

方法概要

方法

限定符和类型	方法和说明
String	addSymbol()
void	arraycopy(int srcPos, char[] dest, int destPos, int length)
int	bp()
char	charAt(int index)
char	current()
BigDecimal	decimalValue()
Lexer.CommentHandler	getCommentHandler()
Keywords	getKeywods()
int	getLine()
boolean	hasComment()
String	hexString()
String	info()
Number	integerValue()
boolean	isAllowComment()
boolean	isDigit(char ch)
boolean	isEndOfComment()
boolean	isEOF()
boolean	isKeepComments()
void	mark()
void	nextToken()
void	nextTokenComma()
void	nextTokenLParen()
void	nextTokenValue()
int	nextVarIndex()
String	numberString()
int	pos() Return the current token's position: a 0-based offset from beginning of the raw input stream (before unicode translation)
List<String>	readAndResetComments()
void	reset()
void	reset(int mark, char markChar, Token token)
void	scanComment()
void	scanHexaDecimal()
void	scanIdentifier()
void	scanNumber()
void	scanSharp()
void	scanVariable()
void	setAllowComment(boolean allowComment)
void	setCommentHandler(Lexer.CommentHandler commentHandler)
void	setKeepComments(boolean keepComments)
void	skipToEOF()
String	stringVal() The value of a literal token, recorded as a string.
String	subString(int offset, int count)
Token	token() Return the current token, set by nextToken().

从类继承的方法 java.lang.Object

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

构造器详细资料

Lexer

public Lexer(String input)

Lexer

public Lexer(String input,
     Lexer.CommentHandler commentHandler)

Lexer

public Lexer(String input,
     boolean skipComment)

Lexer

public Lexer(char[] input,
     int inputLength,
     boolean skipComment)

方法详细资料

isKeepComments

public boolean isKeepComments()

setKeepComments

public void setKeepComments(boolean keepComments)

getCommentHandler

public Lexer.CommentHandler getCommentHandler()

setCommentHandler

public void setCommentHandler(Lexer.CommentHandler commentHandler)

charAt

public final char charAt(int index)

addSymbol

public final String addSymbol()

subString

public final String subString(int offset,
               int count)

arraycopy

public void arraycopy(int srcPos,
             char[] dest,
             int destPos,
             int length)

isAllowComment

public boolean isAllowComment()

setAllowComment

public void setAllowComment(boolean allowComment)

nextVarIndex

public int nextVarIndex()

getKeywods

public Keywords getKeywods()

mark

public void mark()

reset

public void reset()

isEOF

public boolean isEOF()

token

public final Token token()

Return the current token, set by nextToken().

info

public String info()

nextTokenComma

public final void nextTokenComma()

nextTokenLParen

public final void nextTokenLParen()

nextTokenValue

public final void nextTokenValue()

nextToken

public final void nextToken()

scanSharp

public void scanSharp()

scanVariable

public void scanVariable()

scanComment

public void scanComment()

scanIdentifier

public void scanIdentifier()

scanNumber

public void scanNumber()

scanHexaDecimal

public void scanHexaDecimal()

hexString

public String hexString()

isDigit

public final boolean isDigit(char ch)

pos

public final int pos()

Return the current token's position: a 0-based offset from beginning of the raw input stream (before unicode translation)

stringVal

public final String stringVal()

The value of a literal token, recorded as a string. For integers, leading 0x and 'l' suffixes are suppressed.

readAndResetComments

public final List<String> readAndResetComments()

integerValue

public Number integerValue()

bp

public int bp()

current

public char current()

reset

public void reset(int mark,
         char markChar,
         Token token)

numberString

public final String numberString()

decimalValue

public BigDecimal decimalValue()

hasComment

public boolean hasComment()

skipToEOF

public void skipToEOF()

isEndOfComment

public boolean isEndOfComment()

getLine

public int getLine()