com.goldencode.util

Class FastStringBuilder

java.lang.Object

com.goldencode.util.FastStringBuilder

public class FastStringBuilder
extends java.lang.Object

An alternative string builder implementation with fast insert operation. The class pre-allocates a character buffer at the instance creation and never reallocates it. So the expected minimum length of the string being built must be provided in the constructor.

Field Summary

Fields

Modifier and Type	Field and Description
private char[]	data The character buffer
private int	offset Index of the first valid character in the character buffer

Constructor Summary

Constructors

Constructor and Description
FastStringBuilder(int length) Constructor.

Method Summary

Modifier and Type	Method and Description
FastStringBuilder	insertLeft(char ch) Inserts a character in the destination character buffer
FastStringBuilder	insertLeft(java.lang.String str) Inserts a string in the destination character buffer
static void	main(java.lang.String[] args)
java.lang.String	toString() Returns the string representation of the managed character buffer

Methods inherited from class java.lang.Object

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

Field Detail

data

private char[] data

The character buffer

offset

private int offset

Index of the first valid character in the character buffer

Constructor Detail

FastStringBuilder

public FastStringBuilder(int length)

Constructor. The minimum final string length must be passed in the only argument.

Parameters:

length - The minimum final length of the built string.

Method Detail

insertLeft

public FastStringBuilder insertLeft(java.lang.String str)

Inserts a string in the destination character buffer

Parameters:

str - The string to be inserted.

Returns:

reference to this object.

insertLeft

public FastStringBuilder insertLeft(char ch)

Inserts a character in the destination character buffer

Parameters:

ch - The character to be inserted.

Returns:

reference to this object.

toString

public java.lang.String toString()

Returns the string representation of the managed character buffer

Overrides:

toString in class java.lang.Object

main

public static void main(java.lang.String[] args)