org.basex.util
Class TokenBuilder

java.lang.Object
  org.basex.util.TokenBuilder

public final class TokenBuilder
extends java.lang.Object

This class serves as an efficient constructor for byte arrays. It bears some resemblance to Java's StringBuilder.

Author:

Workgroup DBIS, University of Konstanz 2005-07, ISC License, Christian Gruen

Field Summary

boolean	ent Entity flag.
int	size Current token size.

Constructor Summary

TokenBuilder()
Empty constructor.

TokenBuilder(char ch)
Constructor, specifying an initial character.

TokenBuilder(java.lang.String str)
Constructor, specifying an initial string.

Method Summary

void	add(byte b) Adds a single character to the token.
void	add(byte[] b) Adds a character array to the token.
void	add(char ch) Adds a single character to the token.
void	add(int i) Adds an integer to the token.
void	add(java.lang.String s) Adds a string to the token.
void	add(java.lang.String string, java.lang.Object... ext) Adds some query information.
void	addUTF(int c) Adds the specified UTF8 character.
byte[]	finish() Returns the token as a byte array.
void	insert(byte b) Inserts a single character at the beginning of the token.
void	replace(byte b, int pos) Replaces a character at the specified position.
void	reset() Resets the token buffer.
java.lang.String	toString()
void	trim() Chops trailing whitespaces.

Methods inherited from class java.lang.Object

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

Field Detail

ent

public boolean ent

Entity flag.

size

public int size

Current token size.

Constructor Detail

TokenBuilder

public TokenBuilder()

Empty constructor.

TokenBuilder

public TokenBuilder(char ch)

Constructor, specifying an initial character.

Parameters:

ch - first character

TokenBuilder

public TokenBuilder(java.lang.String str)

Constructor, specifying an initial string.

Parameters:

str - initial string

Method Detail

add

public void add(byte b)

Adds a single character to the token.

Parameters:

b - the character to be added

add

public void add(byte[] b)

Adds a character array to the token.

Parameters:

b - the character array to be added

add

public void add(char ch)

Adds a single character to the token.

Parameters:

ch - the character to be added

add

public void add(int i)

Adds an integer to the token.

Parameters:

i - the integer to be added

add

public void add(java.lang.String s)

Adds a string to the token.

Parameters:

s - the string to be added

add

public void add(java.lang.String string,
                java.lang.Object... ext)

Adds some query information.

Parameters:

string - query information

ext - text text extensions

addUTF

public void addUTF(int c)

Adds the specified UTF8 character.

Parameters:

c - the character to be added

finish

public byte[] finish()

Returns the token as a byte array. Unused array bytes are chopped before the token is returned.

Returns:

character array

insert

public void insert(byte b)

Inserts a single character at the beginning of the token. Use it carefully; might get pretty slow.

Parameters:

b - the character to be added

replace

public void replace(byte b,
                    int pos)

Replaces a character at the specified position.

Parameters:

b - the character to be set

pos - position

reset

public void reset()

Resets the token buffer.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

trim

public void trim()

Chops trailing whitespaces.