java.lang.Object
- org.jboss.netty.buffer.ChannelBuffers

```
public final class ChannelBuffers
extends java.lang.Object
```
Creates a new ChannelBuffer by allocating new space or by wrapping or copying existing byte arrays, byte buffers and a string.
Use static import
This classes is intended to be used with Java 5 static import statement:
```
 import static org.jboss.netty.buffer.ChannelBuffers.*;

 ChannelBuffer heapBuffer    = buffer(128);
 ChannelBuffer directBuffer  = directBuffer(256);
 ChannelBuffer dynamicBuffer = dynamicBuffer(512);
 ChannelBuffer wrappedBuffer = wrappedBuffer(new byte[128], new byte[256]);
 ChannelBuffer copiedBuffe r = copiedBuffer(ByteBuffer.allocate(128));
 
```
Allocating a new buffer
Three buffer types are provided out of the box.
- buffer(int) allocates a new fixed-capacity heap buffer.
- directBuffer(int) allocates a new fixed-capacity direct buffer.
- dynamicBuffer(int) allocates a new dynamic-capacity heap buffer, whose capacity increases automatically as needed by a write operation.
Creating a wrapped buffer
Wrapped buffer is a buffer which is a view of one or more existing byte arrays and byte buffers. Any changes in the content of the original array or buffer will be visible in the wrapped buffer. Various wrapper methods are provided and their name is all wrappedBuffer(). You might want to take a look at the methods that accept varargs closely if you want to create a buffer which is composed of more than one array to reduce the number of memory copy.
Creating a copied buffer
Copied buffer is a deep copy of one or more existing byte arrays, byte buffers or a string. Unlike a wrapped buffer, there's no shared data between the original data and the copied buffer. Various copy methods are provided and their name is all copiedBuffer(). It is also convenient to use this operation to merge multiple buffers into one buffer.
Miscellaneous utility methods
This class also provides various utility methods to help implementation of a new buffer type, generation of hex dump and swapping an integer's byte order.

Field Summary

Fields
Modifier and Type	Field	Description
`static java.nio.ByteOrder`	`BIG_ENDIAN`	Big endian byte order.
`static ChannelBuffer`	`EMPTY_BUFFER`	A buffer whose capacity is `0`.
`private static char[]`	`HEXDUMP_TABLE`
`static java.nio.ByteOrder`	`LITTLE_ENDIAN`	Little endian byte order.

Constructor Summary

Constructors
Modifier Constructor Description

private ChannelBuffers()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static ChannelBuffer`	`buffer(int capacity)`	Creates a new big-endian Java heap buffer with the specified `capacity`.
`static ChannelBuffer`	`buffer(java.nio.ByteOrder endianness, int capacity)`	Creates a new Java heap buffer with the specified `endianness` and `capacity`.
`static int`	`compare(ChannelBuffer bufferA, ChannelBuffer bufferB)`	Compares the two specified buffers as described in `ChannelBuffer.compareTo(ChannelBuffer)`.
`private static ChannelBuffer`	`compositeBuffer(java.nio.ByteOrder endianness, java.util.List<ChannelBuffer> components, boolean gathering)`
`static ChannelBuffer`	`copiedBuffer(byte[] array)`	Creates a new big-endian buffer whose content is a copy of the specified `array`.
`static ChannelBuffer`	`copiedBuffer(byte[]... arrays)`	Creates a new big-endian buffer whose content is a merged copy of the specified `arrays`.
`static ChannelBuffer`	`copiedBuffer(byte[] array, int offset, int length)`	Creates a new big-endian buffer whose content is a copy of the specified `array`'s sub-region.
`static ChannelBuffer`	`copiedBuffer(char[] array, int offset, int length, java.nio.charset.Charset charset)`	Creates a new big-endian buffer whose content is a subregion of the specified `array` encoded in the specified `charset`.
`static ChannelBuffer`	`copiedBuffer(char[] array, java.nio.charset.Charset charset)`	Creates a new big-endian buffer whose content is the specified `array` encoded in the specified `charset`.
`static ChannelBuffer`	`copiedBuffer(java.lang.CharSequence string, int offset, int length, java.nio.charset.Charset charset)`	Creates a new big-endian buffer whose content is a subregion of the specified `string` encoded in the specified `charset`.
`static ChannelBuffer`	`copiedBuffer(java.lang.CharSequence string, java.nio.charset.Charset charset)`	Creates a new big-endian buffer whose content is the specified `string` encoded in the specified `charset`.
`static ChannelBuffer`	`copiedBuffer(java.nio.ByteBuffer buffer)`	Creates a new buffer whose content is a copy of the specified `buffer`'s current slice.
`static ChannelBuffer`	`copiedBuffer(java.nio.ByteBuffer... buffers)`	Creates a new buffer whose content is a merged copy of the specified `buffers`' slices.
`static ChannelBuffer`	`copiedBuffer(java.nio.ByteOrder endianness, byte[] array)`	Creates a new buffer with the specified `endianness` whose content is a copy of the specified `array`.
`static ChannelBuffer`	`copiedBuffer(java.nio.ByteOrder endianness, byte[]... arrays)`	Creates a new buffer with the specified `endianness` whose content is a merged copy of the specified `arrays`.
`static ChannelBuffer`	`copiedBuffer(java.nio.ByteOrder endianness, byte[] array, int offset, int length)`	Creates a new buffer with the specified `endianness` whose content is a copy of the specified `array`'s sub-region.
`static ChannelBuffer`	`copiedBuffer(java.nio.ByteOrder endianness, char[] array, int offset, int length, java.nio.charset.Charset charset)`	Creates a new buffer with the specified `endianness` whose content is a subregion of the specified `array` encoded in the specified `charset`.
`static ChannelBuffer`	`copiedBuffer(java.nio.ByteOrder endianness, char[] array, java.nio.charset.Charset charset)`	Creates a new buffer with the specified `endianness` whose content is the specified `array` encoded in the specified `charset`.
`static ChannelBuffer`	`copiedBuffer(java.nio.ByteOrder endianness, java.lang.CharSequence string, int offset, int length, java.nio.charset.Charset charset)`	Creates a new buffer with the specified `endianness` whose content is a subregion of the specified `string` encoded in the specified `charset`.
`static ChannelBuffer`	`copiedBuffer(java.nio.ByteOrder endianness, java.lang.CharSequence string, java.nio.charset.Charset charset)`	Creates a new buffer with the specified `endianness` whose content is the specified `string` encoded in the specified `charset`.
`private static ChannelBuffer`	`copiedBuffer(java.nio.ByteOrder endianness, java.nio.CharBuffer buffer, java.nio.charset.Charset charset)`
`static ChannelBuffer`	`copiedBuffer(ChannelBuffer buffer)`	Creates a new buffer whose content is a copy of the specified `buffer`'s readable bytes.
`static ChannelBuffer`	`copiedBuffer(ChannelBuffer... buffers)`	Creates a new buffer whose content is a merged copy of the specified `buffers`' readable bytes.
`(package private) static java.lang.String`	`decodeString(java.nio.ByteBuffer src, java.nio.charset.Charset charset)`
`static ChannelBuffer`	`directBuffer(int capacity)`	Creates a new big-endian direct buffer with the specified `capacity`.
`static ChannelBuffer`	`directBuffer(java.nio.ByteOrder endianness, int capacity)`	Creates a new direct buffer with the specified `endianness` and `capacity`.
`static ChannelBuffer`	`dynamicBuffer()`	Creates a new big-endian dynamic buffer whose estimated data length is `256` bytes.
`static ChannelBuffer`	`dynamicBuffer(int estimatedLength)`	Creates a new big-endian dynamic buffer with the specified estimated data length.
`static ChannelBuffer`	`dynamicBuffer(int estimatedLength, ChannelBufferFactory factory)`	Creates a new big-endian dynamic buffer with the specified estimated data length using the specified factory.
`static ChannelBuffer`	`dynamicBuffer(java.nio.ByteOrder endianness, int estimatedLength)`	Creates a new dynamic buffer with the specified endianness and the specified estimated data length.
`static ChannelBuffer`	`dynamicBuffer(java.nio.ByteOrder endianness, int estimatedLength, ChannelBufferFactory factory)`	Creates a new dynamic buffer with the specified endianness and the specified estimated data length using the specified factory.
`static ChannelBuffer`	`dynamicBuffer(ChannelBufferFactory factory)`
`(package private) static java.nio.ByteBuffer`	`encodeString(java.nio.CharBuffer src, java.nio.charset.Charset charset)`
`static boolean`	`equals(ChannelBuffer bufferA, ChannelBuffer bufferB)`	Returns `true` if and only if the two specified buffers are identical to each other as described in `ChannelBuffer#equals(Object)`.
`private static int`	`firstIndexOf(ChannelBuffer buffer, int fromIndex, int toIndex, byte value)`
`private static int`	`firstIndexOf(ChannelBuffer buffer, int fromIndex, int toIndex, ChannelBufferIndexFinder indexFinder)`
`static int`	`hashCode(ChannelBuffer buffer)`	Calculates the hash code of the specified buffer.
`static ChannelBuffer`	`hexDump(java.lang.String hexString)`	Create a `ChannelBuffer` from the given hex dump
`static java.lang.String`	`hexDump(ChannelBuffer buffer)`	Returns a hex dump of the specified buffer's readable bytes.
`static java.lang.String`	`hexDump(ChannelBuffer buffer, int fromIndex, int length)`	Returns a hex dump of the specified buffer's sub-region.
`static int`	`indexOf(ChannelBuffer buffer, int fromIndex, int toIndex, byte value)`	The default implementation of `ChannelBuffer.indexOf(int, int, byte)`.
`static int`	`indexOf(ChannelBuffer buffer, int fromIndex, int toIndex, ChannelBufferIndexFinder indexFinder)`	The default implementation of `ChannelBuffer.indexOf(int, int, ChannelBufferIndexFinder)`.
`private static int`	`lastIndexOf(ChannelBuffer buffer, int fromIndex, int toIndex, byte value)`
`private static int`	`lastIndexOf(ChannelBuffer buffer, int fromIndex, int toIndex, ChannelBufferIndexFinder indexFinder)`
`static int`	`swapInt(int value)`	Toggles the endianness of the specified 32-bit integer.
`static long`	`swapLong(long value)`	Toggles the endianness of the specified 64-bit long integer.
`static int`	`swapMedium(int value)`	Toggles the endianness of the specified 24-bit medium integer.
`static short`	`swapShort(short value)`	Toggles the endianness of the specified 16-bit short integer.
`static ChannelBuffer`	`unmodifiableBuffer(ChannelBuffer buffer)`	Creates a read-only buffer which disallows any modification operations on the specified `buffer`.
`static ChannelBuffer`	`wrappedBuffer(boolean gathering, java.nio.ByteBuffer... buffers)`	Creates a new composite buffer which wraps the slices of the specified NIO buffers without copying them.
`static ChannelBuffer`	`wrappedBuffer(boolean gathering, ChannelBuffer... buffers)`	Creates a new composite buffer which wraps the readable bytes of the specified buffers without copying them.
`static ChannelBuffer`	`wrappedBuffer(byte[] array)`	Creates a new big-endian buffer which wraps the specified `array`.
`static ChannelBuffer`	`wrappedBuffer(byte[]... arrays)`	Creates a new big-endian composite buffer which wraps the specified arrays without copying them.
`static ChannelBuffer`	`wrappedBuffer(byte[] array, int offset, int length)`	Creates a new big-endian buffer which wraps the sub-region of the specified `array`.
`static ChannelBuffer`	`wrappedBuffer(java.nio.ByteBuffer buffer)`	Creates a new buffer which wraps the specified NIO buffer's current slice.
`static ChannelBuffer`	`wrappedBuffer(java.nio.ByteBuffer... buffers)`	Creates a new composite buffer which wraps the slices of the specified NIO buffers without copying them.
`static ChannelBuffer`	`wrappedBuffer(java.nio.ByteOrder endianness, byte[] array)`	Creates a new buffer which wraps the specified `array` with the specified `endianness`.
`static ChannelBuffer`	`wrappedBuffer(java.nio.ByteOrder endianness, byte[]... arrays)`	Creates a new composite buffer which wraps the specified arrays without copying them.
`static ChannelBuffer`	`wrappedBuffer(java.nio.ByteOrder endianness, byte[] array, int offset, int length)`	Creates a new buffer which wraps the sub-region of the specified `array` with the specified `endianness`.
`static ChannelBuffer`	`wrappedBuffer(ChannelBuffer buffer)`	Creates a new buffer which wraps the specified buffer's readable bytes.
`static ChannelBuffer`	`wrappedBuffer(ChannelBuffer... buffers)`	Creates a new composite buffer which wraps the readable bytes of the specified buffers without copying them.

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

- Field Detail
  - BIG_ENDIAN
```
public static final java.nio.ByteOrder BIG_ENDIAN
```
    Big endian byte order.
  - LITTLE_ENDIAN
```
public static final java.nio.ByteOrder LITTLE_ENDIAN
```
    Little endian byte order.
  - EMPTY_BUFFER
```
public static final ChannelBuffer EMPTY_BUFFER
```
    A buffer whose capacity is 0.
  - HEXDUMP_TABLE
```
private static final char[] HEXDUMP_TABLE
```
- Constructor Detail
  - ChannelBuffers
```
private ChannelBuffers()
```
- Method Detail
  - buffer
```
public static ChannelBuffer buffer(int capacity)
```
    Creates a new big-endian Java heap buffer with the specified capacity. The new buffer's readerIndex and writerIndex are 0.
  - buffer
```
public static ChannelBuffer buffer(java.nio.ByteOrder endianness,
                                   int capacity)
```
    Creates a new Java heap buffer with the specified endianness and capacity. The new buffer's readerIndex and writerIndex are 0.
  - directBuffer
```
public static ChannelBuffer directBuffer(int capacity)
```
    Creates a new big-endian direct buffer with the specified capacity. The new buffer's readerIndex and writerIndex are 0.
  - directBuffer
```
public static ChannelBuffer directBuffer(java.nio.ByteOrder endianness,
                                         int capacity)
```
    Creates a new direct buffer with the specified endianness and capacity. The new buffer's readerIndex and writerIndex are 0.
  - dynamicBuffer
```
public static ChannelBuffer dynamicBuffer()
```
    Creates a new big-endian dynamic buffer whose estimated data length is 256 bytes. The new buffer's readerIndex and writerIndex are 0.
  - dynamicBuffer
```
public static ChannelBuffer dynamicBuffer(ChannelBufferFactory factory)
```
  - dynamicBuffer
```
public static ChannelBuffer dynamicBuffer(int estimatedLength)
```
    Creates a new big-endian dynamic buffer with the specified estimated data length. More accurate estimation yields less unexpected reallocation overhead. The new buffer's readerIndex and writerIndex are 0.
  - dynamicBuffer
```
public static ChannelBuffer dynamicBuffer(java.nio.ByteOrder endianness,
                                          int estimatedLength)
```
    Creates a new dynamic buffer with the specified endianness and the specified estimated data length. More accurate estimation yields less unexpected reallocation overhead. The new buffer's readerIndex and writerIndex are 0.
  - dynamicBuffer
```
public static ChannelBuffer dynamicBuffer(int estimatedLength,
                                          ChannelBufferFactory factory)
```
    Creates a new big-endian dynamic buffer with the specified estimated data length using the specified factory. More accurate estimation yields less unexpected reallocation overhead. The new buffer's readerIndex and writerIndex are 0.
  - dynamicBuffer
```
public static ChannelBuffer dynamicBuffer(java.nio.ByteOrder endianness,
                                          int estimatedLength,
                                          ChannelBufferFactory factory)
```
    Creates a new dynamic buffer with the specified endianness and the specified estimated data length using the specified factory. More accurate estimation yields less unexpected reallocation overhead. The new buffer's readerIndex and writerIndex are 0.
  - wrappedBuffer
```
public static ChannelBuffer wrappedBuffer(byte[] array)
```
    Creates a new big-endian buffer which wraps the specified array. A modification on the specified array's content will be visible to the returned buffer.
  - wrappedBuffer
```
public static ChannelBuffer wrappedBuffer(java.nio.ByteOrder endianness,
                                          byte[] array)
```
    Creates a new buffer which wraps the specified array with the specified endianness. A modification on the specified array's content will be visible to the returned buffer.
  - wrappedBuffer
```
public static ChannelBuffer wrappedBuffer(byte[] array,
                                          int offset,
                                          int length)
```
    Creates a new big-endian buffer which wraps the sub-region of the specified array. A modification on the specified array's content will be visible to the returned buffer.
  - wrappedBuffer
```
public static ChannelBuffer wrappedBuffer(java.nio.ByteOrder endianness,
                                          byte[] array,
                                          int offset,
                                          int length)
```
    Creates a new buffer which wraps the sub-region of the specified array with the specified endianness. A modification on the specified array's content will be visible to the returned buffer.
  - wrappedBuffer
```
public static ChannelBuffer wrappedBuffer(java.nio.ByteBuffer buffer)
```
    Creates a new buffer which wraps the specified NIO buffer's current slice. A modification on the specified buffer's content will be visible to the returned buffer.
  - wrappedBuffer
```
public static ChannelBuffer wrappedBuffer(ChannelBuffer buffer)
```
    Creates a new buffer which wraps the specified buffer's readable bytes. A modification on the specified buffer's content will be visible to the returned buffer.
  - wrappedBuffer
```
public static ChannelBuffer wrappedBuffer(byte[]... arrays)
```
    Creates a new big-endian composite buffer which wraps the specified arrays without copying them. A modification on the specified arrays' content will be visible to the returned buffer.
  - wrappedBuffer
```
public static ChannelBuffer wrappedBuffer(java.nio.ByteOrder endianness,
                                          byte[]... arrays)
```
    Creates a new composite buffer which wraps the specified arrays without copying them. A modification on the specified arrays' content will be visible to the returned buffer.
    
    Parameters:
    
    endianness - the endianness of the new buffer
  - compositeBuffer
```
private static ChannelBuffer compositeBuffer(java.nio.ByteOrder endianness,
                                             java.util.List<ChannelBuffer> components,
                                             boolean gathering)
```
  - wrappedBuffer
```
public static ChannelBuffer wrappedBuffer(ChannelBuffer... buffers)
```
    Creates a new composite buffer which wraps the readable bytes of the specified buffers without copying them. A modification on the content of the specified buffers will be visible to the returned buffer.
    
    Throws:
    
    java.lang.IllegalArgumentException - if the specified buffers' endianness are different from each other
  - wrappedBuffer
```
public static ChannelBuffer wrappedBuffer(boolean gathering,
                                          ChannelBuffer... buffers)
```
    Creates a new composite buffer which wraps the readable bytes of the specified buffers without copying them. A modification on the content of the specified buffers will be visible to the returned buffer. If gathering is true then gathering writes will be used when ever possible.
    
    Throws:
    
    java.lang.IllegalArgumentException - if the specified buffers' endianness are different from each other
  - wrappedBuffer
```
public static ChannelBuffer wrappedBuffer(java.nio.ByteBuffer... buffers)
```
    Creates a new composite buffer which wraps the slices of the specified NIO buffers without copying them. A modification on the content of the specified buffers will be visible to the returned buffer.
    
    Throws:
    
    java.lang.IllegalArgumentException - if the specified buffers' endianness are different from each other
  - wrappedBuffer
```
public static ChannelBuffer wrappedBuffer(boolean gathering,
                                          java.nio.ByteBuffer... buffers)
```
    Creates a new composite buffer which wraps the slices of the specified NIO buffers without copying them. A modification on the content of the specified buffers will be visible to the returned buffer. If gathering is true then gathering writes will be used when ever possible.
    
    Throws:
    
    java.lang.IllegalArgumentException - if the specified buffers' endianness are different from each other
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(byte[] array)
```
    Creates a new big-endian buffer whose content is a copy of the specified array. The new buffer's readerIndex and writerIndex are 0 and array.length respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(java.nio.ByteOrder endianness,
                                         byte[] array)
```
    Creates a new buffer with the specified endianness whose content is a copy of the specified array. The new buffer's readerIndex and writerIndex are 0 and array.length respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(byte[] array,
                                         int offset,
                                         int length)
```
    Creates a new big-endian buffer whose content is a copy of the specified array's sub-region. The new buffer's readerIndex and writerIndex are 0 and the specified length respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(java.nio.ByteOrder endianness,
                                         byte[] array,
                                         int offset,
                                         int length)
```
    Creates a new buffer with the specified endianness whose content is a copy of the specified array's sub-region. The new buffer's readerIndex and writerIndex are 0 and the specified length respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(java.nio.ByteBuffer buffer)
```
    Creates a new buffer whose content is a copy of the specified buffer's current slice. The new buffer's readerIndex and writerIndex are 0 and buffer.remaining respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(ChannelBuffer buffer)
```
    Creates a new buffer whose content is a copy of the specified buffer's readable bytes. The new buffer's readerIndex and writerIndex are 0 and buffer.readableBytes respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(byte[]... arrays)
```
    Creates a new big-endian buffer whose content is a merged copy of the specified arrays. The new buffer's readerIndex and writerIndex are 0 and the sum of all arrays' length respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(java.nio.ByteOrder endianness,
                                         byte[]... arrays)
```
    Creates a new buffer with the specified endianness whose content is a merged copy of the specified arrays. The new buffer's readerIndex and writerIndex are 0 and the sum of all arrays' length respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(ChannelBuffer... buffers)
```
    Creates a new buffer whose content is a merged copy of the specified buffers' readable bytes. The new buffer's readerIndex and writerIndex are 0 and the sum of all buffers' readableBytes respectively.
    
    Throws:
    
    java.lang.IllegalArgumentException - if the specified buffers' endianness are different from each other
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(java.nio.ByteBuffer... buffers)
```
    Creates a new buffer whose content is a merged copy of the specified buffers' slices. The new buffer's readerIndex and writerIndex are 0 and the sum of all buffers' remaining respectively.
    
    Throws:
    
    java.lang.IllegalArgumentException - if the specified buffers' endianness are different from each other
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(java.lang.CharSequence string,
                                         java.nio.charset.Charset charset)
```
    Creates a new big-endian buffer whose content is the specified string encoded in the specified charset. The new buffer's readerIndex and writerIndex are 0 and the length of the encoded string respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(java.lang.CharSequence string,
                                         int offset,
                                         int length,
                                         java.nio.charset.Charset charset)
```
    Creates a new big-endian buffer whose content is a subregion of the specified string encoded in the specified charset. The new buffer's readerIndex and writerIndex are 0 and the length of the encoded string respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(java.nio.ByteOrder endianness,
                                         java.lang.CharSequence string,
                                         java.nio.charset.Charset charset)
```
    Creates a new buffer with the specified endianness whose content is the specified string encoded in the specified charset. The new buffer's readerIndex and writerIndex are 0 and the length of the encoded string respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(java.nio.ByteOrder endianness,
                                         java.lang.CharSequence string,
                                         int offset,
                                         int length,
                                         java.nio.charset.Charset charset)
```
    Creates a new buffer with the specified endianness whose content is a subregion of the specified string encoded in the specified charset. The new buffer's readerIndex and writerIndex are 0 and the length of the encoded string respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(char[] array,
                                         java.nio.charset.Charset charset)
```
    Creates a new big-endian buffer whose content is the specified array encoded in the specified charset. The new buffer's readerIndex and writerIndex are 0 and the length of the encoded string respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(char[] array,
                                         int offset,
                                         int length,
                                         java.nio.charset.Charset charset)
```
    Creates a new big-endian buffer whose content is a subregion of the specified array encoded in the specified charset. The new buffer's readerIndex and writerIndex are 0 and the length of the encoded string respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(java.nio.ByteOrder endianness,
                                         char[] array,
                                         java.nio.charset.Charset charset)
```
    Creates a new buffer with the specified endianness whose content is the specified array encoded in the specified charset. The new buffer's readerIndex and writerIndex are 0 and the length of the encoded string respectively.
  - copiedBuffer
```
public static ChannelBuffer copiedBuffer(java.nio.ByteOrder endianness,
                                         char[] array,
                                         int offset,
                                         int length,
                                         java.nio.charset.Charset charset)
```
    Creates a new buffer with the specified endianness whose content is a subregion of the specified array encoded in the specified charset. The new buffer's readerIndex and writerIndex are 0 and the length of the encoded string respectively.
  - copiedBuffer
```
private static ChannelBuffer copiedBuffer(java.nio.ByteOrder endianness,
                                          java.nio.CharBuffer buffer,
                                          java.nio.charset.Charset charset)
```
  - unmodifiableBuffer
```
public static ChannelBuffer unmodifiableBuffer(ChannelBuffer buffer)
```
    Creates a read-only buffer which disallows any modification operations on the specified buffer. The new buffer has the same readerIndex and writerIndex with the specified buffer.
  - hexDump
```
public static ChannelBuffer hexDump(java.lang.String hexString)
```
    Create a ChannelBuffer from the given hex dump
  - hexDump
```
public static java.lang.String hexDump(ChannelBuffer buffer)
```
    Returns a hex dump of the specified buffer's readable bytes.
  - hexDump
```
public static java.lang.String hexDump(ChannelBuffer buffer,
                                       int fromIndex,
                                       int length)
```
    Returns a hex dump of the specified buffer's sub-region.
  - hashCode
```
public static int hashCode(ChannelBuffer buffer)
```
    Calculates the hash code of the specified buffer. This method is useful when implementing a new buffer type.
  - equals
```
public static boolean equals(ChannelBuffer bufferA,
                             ChannelBuffer bufferB)
```
    Returns true if and only if the two specified buffers are identical to each other as described in ChannelBuffer#equals(Object). This method is useful when implementing a new buffer type.
  - compare
```
public static int compare(ChannelBuffer bufferA,
                          ChannelBuffer bufferB)
```
    Compares the two specified buffers as described in ChannelBuffer.compareTo(ChannelBuffer). This method is useful when implementing a new buffer type.
  - indexOf
```
public static int indexOf(ChannelBuffer buffer,
                          int fromIndex,
                          int toIndex,
                          byte value)
```
    The default implementation of ChannelBuffer.indexOf(int, int, byte). This method is useful when implementing a new buffer type.
  - indexOf
```
public static int indexOf(ChannelBuffer buffer,
                          int fromIndex,
                          int toIndex,
                          ChannelBufferIndexFinder indexFinder)
```
    The default implementation of ChannelBuffer.indexOf(int, int, ChannelBufferIndexFinder). This method is useful when implementing a new buffer type.
  - swapShort
```
public static short swapShort(short value)
```
    Toggles the endianness of the specified 16-bit short integer.
  - swapMedium
```
public static int swapMedium(int value)
```
    Toggles the endianness of the specified 24-bit medium integer.
  - swapInt
```
public static int swapInt(int value)
```
    Toggles the endianness of the specified 32-bit integer.
  - swapLong
```
public static long swapLong(long value)
```
    Toggles the endianness of the specified 64-bit long integer.
  - firstIndexOf
```
private static int firstIndexOf(ChannelBuffer buffer,
                                int fromIndex,
                                int toIndex,
                                byte value)
```
  - lastIndexOf
```
private static int lastIndexOf(ChannelBuffer buffer,
                               int fromIndex,
                               int toIndex,
                               byte value)
```
  - firstIndexOf
```
private static int firstIndexOf(ChannelBuffer buffer,
                                int fromIndex,
                                int toIndex,
                                ChannelBufferIndexFinder indexFinder)
```
  - lastIndexOf
```
private static int lastIndexOf(ChannelBuffer buffer,
                               int fromIndex,
                               int toIndex,
                               ChannelBufferIndexFinder indexFinder)
```
  - encodeString
```
static java.nio.ByteBuffer encodeString(java.nio.CharBuffer src,
                                        java.nio.charset.Charset charset)
```
  - decodeString
```
static java.lang.String decodeString(java.nio.ByteBuffer src,
                                     java.nio.charset.Charset charset)
```

Class ChannelBuffers

Use static import

Allocating a new buffer

Creating a wrapped buffer

Creating a copied buffer

Miscellaneous utility methods

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

BIG_ENDIAN

LITTLE_ENDIAN

EMPTY_BUFFER

HEXDUMP_TABLE

Constructor Detail

ChannelBuffers

Method Detail

buffer

buffer

directBuffer

directBuffer

dynamicBuffer

dynamicBuffer

dynamicBuffer

dynamicBuffer

dynamicBuffer

dynamicBuffer

wrappedBuffer

wrappedBuffer

wrappedBuffer

wrappedBuffer

wrappedBuffer

wrappedBuffer

wrappedBuffer

wrappedBuffer

compositeBuffer

wrappedBuffer

wrappedBuffer

wrappedBuffer

wrappedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

copiedBuffer

unmodifiableBuffer

hexDump

hexDump

hexDump

hashCode

equals

compare

indexOf

indexOf

swapShort

swapMedium

swapInt

swapLong

firstIndexOf

lastIndexOf

firstIndexOf

lastIndexOf

encodeString

decodeString