CharBuffer (Solr 6.6.0 API)

java.lang.Object
- org.apache.solr.internal.csv.CharBuffer

```
public class CharBuffer
extends Object
```
A simple StringBuffer replacement that aims to reduce copying as much as possible. The buffer grows as necessary. This class is not thread safe.

Constructor Summary

Constructors
Constructor and Description
`CharBuffer()` Creates a new CharBuffer with an initial capacity of 32 characters.
`CharBuffer(int length)` Creates a new CharBuffer with an initial capacity of `length` characters.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`append(char data)` Appends a single character to the end of this CharBuffer.
`void`	`append(char[] data)` Appends `data` to the end of this CharBuffer.
`void`	`append(CharBuffer cb)` Appends the contents of `cb` to the end of this CharBuffer.
`void`	`append(String s)` Appends `s` to the end of this CharBuffer.
`void`	`append(StringBuffer sb)` Appends `sb` to the end of this CharBuffer.
`int`	`capacity()` Returns the current capacity of the buffer.
`char`	`charAt(int pos)` Returns the character at the specified position.
`void`	`clear()` Empties the buffer.
`char[]`	`getCharacters()` Returns the contents of the buffer as a char[].
`int`	`length()` Returns the number of characters in the buffer.
`void`	`provideCapacity(int capacity)` Copies the data into a new array of at least `capacity` size.
`void`	`shrink()` Shrinks the capacity of the buffer to the current length if necessary.
`String`	`toString()` Converts the contents of the buffer into a StringBuffer.
`void`	`trimTrailingWhitespace()` Removes trailing whitespace.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - CharBuffer
```
public CharBuffer()
```
    Creates a new CharBuffer with an initial capacity of 32 characters.
  - CharBuffer
```
public CharBuffer(int length)
```
    Creates a new CharBuffer with an initial capacity of length characters.
- Method Detail
  - clear
```
public void clear()
```
    Empties the buffer. The capacity still remains the same, so no memory is freed.
  - length
```
public int length()
```
    Returns the number of characters in the buffer.
    
    Returns:
    
    the number of characters
  - capacity
```
public int capacity()
```
    Returns the current capacity of the buffer.
    
    Returns:
    
    the maximum number of characters that can be stored in this buffer without resizing it.
  - append
```
public void append(CharBuffer cb)
```
    Appends the contents of cb to the end of this CharBuffer.
    
    Parameters:
    
    cb - the CharBuffer to append or null
  - append
```
public void append(String s)
```
    Appends s to the end of this CharBuffer. This method involves copying the new data once!
    
    Parameters:
    
    s - the String to append or null
  - append
```
public void append(StringBuffer sb)
```
    Appends sb to the end of this CharBuffer. This method involves copying the new data once!
    
    Parameters:
    
    sb - the StringBuffer to append or null
  - append
```
public void append(char[] data)
```
    Appends data to the end of this CharBuffer. This method involves copying the new data once!
    
    Parameters:
    
    data - the char[] to append or null
  - append
```
public void append(char data)
```
    Appends a single character to the end of this CharBuffer. This method involves copying the new data once!
    
    Parameters:
    
    data - the char to append
  - shrink
```
public void shrink()
```
    Shrinks the capacity of the buffer to the current length if necessary. This method involves copying the data once!
  - trimTrailingWhitespace
```
public void trimTrailingWhitespace()
```
    Removes trailing whitespace.
  - getCharacters
```
public char[] getCharacters()
```
    Returns the contents of the buffer as a char[]. The returned array may be the internal array of the buffer, so the caller must take care when modifying it. This method allows to avoid copying if the caller knows the exact capacity before.
  - charAt
```
public char charAt(int pos)
```
    Returns the character at the specified position.
  - toString
```
public String toString()
```
    Converts the contents of the buffer into a StringBuffer. This method involves copying the new data once!
    
    Overrides:
    
    toString in class Object
  - provideCapacity
```
public void provideCapacity(int capacity)
```
    Copies the data into a new array of at least capacity size.

Class CharBuffer

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

CharBuffer

CharBuffer

Method Detail

clear

length

capacity

append

append

append

append

append

shrink

trimTrailingWhitespace

getCharacters

charAt

toString

provideCapacity