org.vishia.util

Class StringAdd

java.lang.Object

org.vishia.util.StringAdd

public final class StringAdd
extends java.lang.Object

This is a small helper class to add something to build a String for optimized calculate time and space effort. Note: The String s += add needs internally a StringBuilder. This class uses it explicitly with lesser effort.

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.CharSequence	cs
private int	size
private java.lang.StringBuilder	u

Constructor Summary

Constructors

Constructor and Description
StringAdd(int defaultSizeBuffer) The ctor does not create a StringBuilder.

Method Summary

Modifier and Type	Method and Description
StringAdd	add(char cc) Adds a Character.
StringAdd	add(java.lang.CharSequence src) Adds a String.
private java.lang.StringBuilder	buffer() Creates or returns the StringBuilder Buffer.
java.lang.CharSequence	get() Returns either src from only one add or the internal StringBuilder.
java.lang.String	toString() Returns either the only one added CharSequence src or the content of the internal Buffer (StringBuilder).

Methods inherited from class java.lang.Object

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

Field Detail

u

private java.lang.StringBuilder u

cs

private java.lang.CharSequence cs

size

private int size

Constructor Detail

StringAdd

public StringAdd(int defaultSizeBuffer)

The ctor does not create a StringBuilder.

Parameters:

defaultSizeBuffer - Only stored if necessary.

Method Detail

buffer

private java.lang.StringBuilder buffer()

Creates or returns the StringBuilder Buffer.

add

public StringAdd add(java.lang.CharSequence src)

Adds a String. Note: 'add' is shorten to write and read as 'append' If it is the first and only one operation, src will be stored and returned. Note that src may not be persistent.

Parameters:

src -

add

public StringAdd add(char cc)

Adds a Character. Note: 'add' is shorten to write and read as 'append' It creates a StringBuilder buffer internally.

Parameters:

src -

get

public java.lang.CharSequence get()

Returns either src from only one add or the internal StringBuilder. It has lesser effort than toString, if a CharSequence is sufficient to process the content.

toString

public java.lang.String toString()

Returns either the only one added CharSequence src or the content of the internal Buffer (StringBuilder).

Overrides:

toString in class java.lang.Object

See Also:

Object.toString()