Package com.univocity.parsers.common.input

Class NoopCharAppender

java.lang.Object

com.univocity.parsers.common.input.NoopCharAppender

All Implemented Interfaces:

CharAppender, java.lang.CharSequence

public class NoopCharAppender
extends java.lang.Object
implements CharAppender

An implementation of CharAppender that does nothing. Used by ParserOutput to transparently discard any unwanted input while parsing.

See Also:

ParserOutput, CharAppender

Field Summary

Fields

Modifier and Type	Field	Description
private static NoopCharAppender	instance

Constructor Summary

Constructors

Modifier	Constructor	Description
private	NoopCharAppender()	This is a singleton class and cannot be instantiated.

Method Summary

Modifier and Type	Method	Description
void	append(char ch)	Does nothing
void	append(char[] ch)	Does nothing
void	append(char[] ch, int from, int length)	Does nothing
void	append(int ch)	Does nothing
void	append(int[] ch)	Does nothing
void	append(java.lang.Object obj)	Does nothing
void	append(java.lang.String string)	Does nothing
void	append(java.lang.String string, int from, int to)	Does nothing
void	appendIgnoringPadding(char ch, char padding)	Does nothing
void	appendIgnoringWhitespace(char ch)	Does nothing
void	appendIgnoringWhitespaceAndPadding(char ch, char padding)	Does nothing
char	appendUntil(char ch, CharInput input, char stop)	Appends characters from the input, until a stop character is found
char	appendUntil(char ch, CharInput input, char stop1, char stop2)	Appends characters from the input, until a stop character is found
char	appendUntil(char ch, CharInput input, char stop1, char stop2, char stop3)	Appends characters from the input, until a stop character is found
char	charAt(int i)	Does nothing
void	delete(int count)	Does nothing
void	fill(char ch, int length)	Does nothing
java.lang.String	getAndReset()	Returns null as this appender does nothing.
char[]	getChars()	Does nothing
char[]	getCharsAndReset()	Returns null as this appender does nothing.
static CharAppender	getInstance()	Returns the singleton instance of NoopCharAppender
void	ignore(int count)	Does nothing
int	indexOf(char[] charSequence, int from)	Does nothing
int	indexOf(char ch, int from)	Does nothing
int	indexOf(java.lang.CharSequence charSequence, int from)	Does nothing
int	indexOfAny(char[] chars, int from)	Does nothing
boolean	isEmpty()	Returns true as it's always empty.
int	lastIndexOf(char ch)	Returns the last index of a given character in the current appended (characters that have been marked as whitespace will be ignored)
int	length()	Returns -1 as this appender does nothing.
void	prepend(char ch)	Does nothing
void	prepend(char[] chars)	Does nothing
void	prepend(char ch1, char ch2)	Does nothing
void	remove(int from, int length)	Does nothing
void	reset()	Does nothing
void	resetWhitespaceCount()	Does nothing
java.lang.CharSequence	subSequence(int i, int i1)	Does nothing
java.lang.String	substring(int from, int length)	Does nothing
void	updateWhitespace()	Does nothing
int	whitespaceCount()	Returns 0 as this appender does nothing.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.CharSequence

chars, codePoints, toString

Field Detail

instance

private static final NoopCharAppender instance

Constructor Detail

NoopCharAppender

private NoopCharAppender()

This is a singleton class and cannot be instantiated. Use getInstance().

Method Detail

getInstance

public static CharAppender getInstance()

Returns the singleton instance of NoopCharAppender

Returns:

the singleton instance of NoopCharAppender

length

public int length()

Returns -1 as this appender does nothing.

Specified by:

length in interface CharAppender

Specified by:

length in interface java.lang.CharSequence

Returns:

-1 as this appender does nothing.

getAndReset

public java.lang.String getAndReset()

Returns null as this appender does nothing.

Specified by:

getAndReset in interface CharAppender

Returns:

null as this appender does nothing.

appendIgnoringWhitespace

public void appendIgnoringWhitespace(char ch)

Does nothing

Specified by:

appendIgnoringWhitespace in interface CharAppender

Parameters:

ch - character to append

append

public void append(char ch)

Does nothing

Specified by:

append in interface CharAppender

Parameters:

ch - the character to append

getCharsAndReset

public char[] getCharsAndReset()

Returns null as this appender does nothing.

Specified by:

getCharsAndReset in interface CharAppender

Returns:

null as this appender does nothing.

whitespaceCount

public int whitespaceCount()

Returns 0 as this appender does nothing.

Specified by:

whitespaceCount in interface CharAppender

Returns:

0 as this appender does nothing.

reset

public void reset()

Does nothing

Specified by:

reset in interface CharAppender

resetWhitespaceCount

public void resetWhitespaceCount()

Does nothing

Specified by:

resetWhitespaceCount in interface CharAppender

getChars

public char[] getChars()

Does nothing

Specified by:

getChars in interface CharAppender

Returns:

the internal character array.

fill

public void fill(char ch,
                 int length)

Does nothing

Specified by:

fill in interface CharAppender

Parameters:

ch - the character to append

length - the number of times the given character should be appended.

appendIgnoringPadding

public void appendIgnoringPadding(char ch,
                                  char padding)

Does nothing

Specified by:

appendIgnoringPadding in interface CharAppender

Parameters:

ch - character to append

padding - the padding character to ignore

appendIgnoringWhitespaceAndPadding

public void appendIgnoringWhitespaceAndPadding(char ch,
                                               char padding)

Does nothing

Specified by:

appendIgnoringWhitespaceAndPadding in interface CharAppender

Parameters:

ch - character to append

padding - the padding character to ignore

prepend

public void prepend(char ch)

Does nothing

Specified by:

prepend in interface CharAppender

Parameters:

ch - the character to prepend in front of the current accumulated value.

updateWhitespace

public void updateWhitespace()

Does nothing

Specified by:

updateWhitespace in interface CharAppender

appendUntil

public char appendUntil(char ch,
                        CharInput input,
                        char stop)

Description copied from interface: CharAppender

Appends characters from the input, until a stop character is found

Specified by:

appendUntil in interface CharAppender

Parameters:

ch - the first character of the input to be appended.

input - the input whose the following characters will be appended

stop - the stop character

Returns:

the stop character found on the input.

appendUntil

public final char appendUntil(char ch,
                              CharInput input,
                              char stop1,
                              char stop2)

Description copied from interface: CharAppender

Appends characters from the input, until a stop character is found

Specified by:

appendUntil in interface CharAppender

Parameters:

ch - the first character of the input to be appended.

input - the input whose the following characters will be appended

stop1 - the first stop character

stop2 - the second stop character

Returns:

one of the stop characters found on the input.

appendUntil

public final char appendUntil(char ch,
                              CharInput input,
                              char stop1,
                              char stop2,
                              char stop3)

Description copied from interface: CharAppender

Appends characters from the input, until a stop character is found

Specified by:

appendUntil in interface CharAppender

Parameters:

ch - the first character of the input to be appended.

input - the input whose the following characters will be appended

stop1 - the first stop character

stop2 - the second stop character

stop3 - the third stop character

Returns:

one of the stop characters found on the input.

append

public void append(char[] ch,
                   int from,
                   int length)

Does nothing

Specified by:

append in interface CharAppender

Parameters:

ch - the character array

from - the position of the first character in the array to be appended

length - the number of characters to be appended from the given posiion.

prepend

public void prepend(char ch1,
                    char ch2)

Does nothing

Specified by:

prepend in interface CharAppender

Parameters:

ch1 - the first character to prepend in front of the current accumulated value.

ch2 - the second character to prepend in front of the current accumulated value.

prepend

public void prepend(char[] chars)

Does nothing

Specified by:

prepend in interface CharAppender

Parameters:

chars - the character sequence to prepend in front of the current accumulated value.

append

public void append(char[] ch)

Does nothing

Specified by:

append in interface CharAppender

Parameters:

ch - the character array

append

public void append(java.lang.String string)

Does nothing

Specified by:

append in interface CharAppender

Parameters:

string - the input String

append

public void append(java.lang.String string,
                   int from,
                   int to)

Does nothing

Specified by:

append in interface CharAppender

Parameters:

string - the string whose characters will be appended.

from - the index of the first character to append

to - the index of the last character to append

charAt

public char charAt(int i)

Does nothing

Specified by:

charAt in interface java.lang.CharSequence

subSequence

public java.lang.CharSequence subSequence(int i,
                                          int i1)

Does nothing

Specified by:

subSequence in interface java.lang.CharSequence

append

public void append(int ch)

Does nothing

Specified by:

append in interface CharAppender

Parameters:

ch - the codepoint to append

append

public void append(int[] ch)

Does nothing

Specified by:

append in interface CharAppender

Parameters:

ch - the codepoint array

append

public void append(java.lang.Object obj)

Does nothing

Specified by:

append in interface CharAppender

Parameters:

obj - the object whose String representation will be appended.

ignore

public void ignore(int count)

Does nothing

Specified by:

ignore in interface CharAppender

Parameters:

count - the number of characters to ignore

indexOf

public int indexOf(char ch,
                   int from)

Does nothing

Specified by:

indexOf in interface CharAppender

Parameters:

ch - the character to look for

from - the starting index from where the search will begin.

Returns:

the position of the given character in the appended content, -1 if not found

substring

public java.lang.String substring(int from,
                                  int length)

Does nothing

Specified by:

substring in interface CharAppender

Parameters:

from - the starting position in the buffer

length - the number of characters to accumulate from the given start position

Returns:

a String with the section of characters accumulated by this appender.

remove

public void remove(int from,
                   int length)

Does nothing

Specified by:

remove in interface CharAppender

Parameters:

from - the starting position in the buffer (inclusive)

length - the number of characters to accumulate from the given start position

delete

public void delete(int count)

Does nothing

Specified by:

delete in interface CharAppender

Parameters:

count - the number of characters to delete.

indexOfAny

public int indexOfAny(char[] chars,
                      int from)

Does nothing

Specified by:

indexOfAny in interface CharAppender

Parameters:

chars - the characters to look for

from - the starting index from where the search will begin.

Returns:

the position any one of the given characters in the appended content, -1 if none found

indexOf

public int indexOf(char[] charSequence,
                   int from)

Does nothing

Specified by:

indexOf in interface CharAppender

Parameters:

charSequence - the character sequence to look for

from - the starting index from where the search will begin.

Returns:

the position of the given character sequence in the appended content, -1 if not found

indexOf

public int indexOf(java.lang.CharSequence charSequence,
                   int from)

Does nothing

Specified by:

indexOf in interface CharAppender

Parameters:

charSequence - the character sequence to look for

from - the starting index from where the search will begin.

Returns:

the position of the given character sequence in the appended content, -1 if not found

isEmpty

public boolean isEmpty()

Returns true as it's always empty.

Specified by:

isEmpty in interface CharAppender

Returns:

true calling CharAppender.getAndReset() would return null, otherwise false.

lastIndexOf

public int lastIndexOf(char ch)

Description copied from interface: CharAppender

Returns the last index of a given character in the current appended (characters that have been marked as whitespace will be ignored)

Specified by:

lastIndexOf in interface CharAppender

Parameters:

ch - the character to look for

Returns:

the last position of the given character in the appended content, or -1 if not found.