Module org.apache.jena.arq

Package org.apache.jena.sparql.lang.sparql_11

Class JavaCharStream

java.lang.Object

org.apache.jena.sparql.lang.sparql_11.JavaCharStream

public class JavaCharStream
extends Object

An implementation of interface CharStream, where the stream is assumed to contain only ASCII characters (with java-like unicode escape processing).

Field Summary

Fields

Modifier and Type	Field	Description
int	bufpos
static final boolean	staticFlag	Whether parser is static.

Constructor Summary

Constructors

Constructor	Description
JavaCharStream(InputStream dstream)	Constructor.
JavaCharStream(InputStream dstream, int startline, int startcolumn)	Constructor.
JavaCharStream(InputStream dstream, int startline, int startcolumn, int buffersize)	Constructor.
JavaCharStream(InputStream dstream, String encoding)	Constructor.
JavaCharStream(InputStream dstream, String encoding, int startline, int startcolumn)	Constructor.
JavaCharStream(InputStream dstream, String encoding, int startline, int startcolumn, int buffersize)	Constructor.
JavaCharStream(Reader dstream)	Constructor.
JavaCharStream(Reader dstream, int startline, int startcolumn)	Constructor.
JavaCharStream(Reader dstream, int startline, int startcolumn, int buffersize)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	adjustBeginLineColumn(int newLine, int newCol)	Method to adjust line and column numbers for the start of a token.
void	backup(int amount)	Retreat.
char	BeginToken()
void	Done()	Set buffers back to null when finished.
int	getBeginColumn()	Get the beginning column.
int	getBeginLine()
int	getColumn()	Deprecated.
int	getEndColumn()	Get end column.
int	getEndLine()	Get end line.
String	GetImage()	Get the token timage.
int	getLine()	Deprecated.
char[]	GetSuffix(int len)	Get the suffix as an array of characters.
int	getTabSize()
char	readChar()
void	ReInit(InputStream dstream)	Reinitialise.
void	ReInit(InputStream dstream, int startline, int startcolumn)	Reinitialise.
void	ReInit(InputStream dstream, int startline, int startcolumn, int buffersize)	Reinitialise.
void	ReInit(InputStream dstream, String encoding)	Reinitialise.
void	ReInit(InputStream dstream, String encoding, int startline, int startcolumn)	Reinitialise.
void	ReInit(InputStream dstream, String encoding, int startline, int startcolumn, int buffersize)	Reinitialise.
void	ReInit(Reader dstream)
void	ReInit(Reader dstream, int startline, int startcolumn)
void	ReInit(Reader dstream, int startline, int startcolumn, int buffersize)
void	setTabSize(int i)

Methods inherited from class java.lang.Object

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

Field Details

staticFlag

public static final boolean staticFlag

Whether parser is static.

See Also:

• Constant Field Values

bufpos

public int bufpos

Constructor Details

JavaCharStream

public JavaCharStream(Reader dstream,
 int startline,
 int startcolumn,
 int buffersize)

Constructor.

Parameters:

dstream - the underlying data source.

startline - line number of the first character of the stream, mostly for error messages.

startcolumn - column number of the first character of the stream.

buffersize - size of the buffer

JavaCharStream

public JavaCharStream(Reader dstream,
 int startline,
 int startcolumn)

Constructor.

Parameters:

dstream - the underlying data source.

startline - line number of the first character of the stream, mostly for error messages.

startcolumn - column number of the first character of the stream.

JavaCharStream

public JavaCharStream(Reader dstream)

Constructor.

Parameters:

dstream - the underlying data source.

JavaCharStream

public JavaCharStream(InputStream dstream,
 String encoding,
 int startline,
 int startcolumn,
 int buffersize)
               throws UnsupportedEncodingException

Constructor.

Throws:

UnsupportedEncodingException

JavaCharStream

public JavaCharStream(InputStream dstream,
 int startline,
 int startcolumn,
 int buffersize)

Constructor.

Parameters:

dstream - the underlying data source.

startline - line number of the first character of the stream, mostly for error messages.

startcolumn - column number of the first character of the stream.

buffersize - size of the buffer

JavaCharStream

public JavaCharStream(InputStream dstream,
 String encoding,
 int startline,
 int startcolumn)
               throws UnsupportedEncodingException

Constructor.

Parameters:

dstream - the underlying data source.

encoding - the character encoding of the data stream.

startline - line number of the first character of the stream, mostly for error messages.

startcolumn - column number of the first character of the stream.

Throws:

UnsupportedEncodingException - encoding is invalid or unsupported.

JavaCharStream

public JavaCharStream(InputStream dstream,
 int startline,
 int startcolumn)

Constructor.

Parameters:

dstream - the underlying data source.

startline - line number of the first character of the stream, mostly for error messages.

startcolumn - column number of the first character of the stream.

JavaCharStream

public JavaCharStream(InputStream dstream,
 String encoding)
               throws UnsupportedEncodingException

Constructor.

Parameters:

dstream - the underlying data source.

encoding - the character encoding of the data stream.

Throws:

UnsupportedEncodingException - encoding is invalid or unsupported.

JavaCharStream

public JavaCharStream(InputStream dstream)

Constructor.

Parameters:

dstream - the underlying data source.

Method Details

setTabSize

public void setTabSize(int i)

getTabSize

public int getTabSize()

BeginToken

public char BeginToken()
                throws IOException

Throws:

IOException

readChar

public char readChar()
              throws IOException

Throws:

IOException

getColumn

@Deprecated
public int getColumn()

Deprecated.

getLine

@Deprecated
public int getLine()

Deprecated.

getEndColumn

public int getEndColumn()

Get end column.

Returns:

the end column or -1

getEndLine

public int getEndLine()

Get end line.

Returns:

the end line number or -1

getBeginColumn

public int getBeginColumn()

Get the beginning column.

Returns:

column of token start

getBeginLine

public int getBeginLine()

Returns:

line number of token start

backup

public void backup(int amount)

Retreat.

ReInit

public void ReInit(Reader dstream,
 int startline,
 int startcolumn,
 int buffersize)

ReInit

public void ReInit(Reader dstream,
 int startline,
 int startcolumn)

ReInit

public void ReInit(Reader dstream)

ReInit

public void ReInit(InputStream dstream,
 String encoding,
 int startline,
 int startcolumn,
 int buffersize)
            throws UnsupportedEncodingException

Reinitialise.

Parameters:

dstream - the underlying data source.

encoding - the character encoding of the data stream.

startline - line number of the first character of the stream, mostly for error messages.

startcolumn - column number of the first character of the stream.

buffersize - size of the buffer

Throws:

UnsupportedEncodingException

ReInit

public void ReInit(InputStream dstream,
 int startline,
 int startcolumn,
 int buffersize)

Reinitialise.

Parameters:

dstream - the underlying data source.

startline - line number of the first character of the stream, mostly for error messages.

startcolumn - column number of the first character of the stream.

buffersize - size of the buffer

ReInit

public void ReInit(InputStream dstream,
 String encoding,
 int startline,
 int startcolumn)
            throws UnsupportedEncodingException

Reinitialise.

Parameters:

dstream - the underlying data source.

encoding - the character encoding of the data stream.

startline - line number of the first character of the stream, mostly for error messages.

startcolumn - column number of the first character of the stream.

Throws:

UnsupportedEncodingException - encoding is invalid or unsupported.

ReInit

public void ReInit(InputStream dstream,
 int startline,
 int startcolumn)

Reinitialise.

Parameters:

dstream - the underlying data source.

startline - line number of the first character of the stream, mostly for error messages.

startcolumn - column number of the first character of the stream.

ReInit

public void ReInit(InputStream dstream,
 String encoding)
            throws UnsupportedEncodingException

Reinitialise.

Parameters:

dstream - the underlying data source.

encoding - the character encoding of the data stream.

Throws:

UnsupportedEncodingException - encoding is invalid or unsupported.

ReInit

public void ReInit(InputStream dstream)

Reinitialise.

Parameters:

dstream - the underlying data source.

GetImage

public String GetImage()

Get the token timage.

Returns:

token image as String

GetSuffix

public char[] GetSuffix(int len)

Get the suffix as an array of characters.

Parameters:

len - the length of the array to return.

Returns:

suffix

Done

public void Done()

Set buffers back to null when finished.

adjustBeginLineColumn

public void adjustBeginLineColumn(int newLine,
 int newCol)

Method to adjust line and column numbers for the start of a token.

Parameters:

newLine - the new line number.

newCol - the new column number.