org.jboss.netty.example.factorial
Class NumberEncoder

java.lang.Object
  extended by org.jboss.netty.handler.codec.oneone.OneToOneEncoder
      extended by org.jboss.netty.example.factorial.NumberEncoder
All Implemented Interfaces:
ChannelDownstreamHandler, ChannelHandler

public class NumberEncoder
extends OneToOneEncoder

Encodes a Number into the binary representation prepended with a magic number ('F' or 0x46) and a 32-bit length prefix. For example, 42 will be encoded to { 'F', 0, 0, 0, 1, 42 }.

Version:
$Rev: 2125 $, $Date: 2010-02-02 12:13:15 +0900 (Tue, 02 Feb 2010) $
Author:
The Netty Project, Trustin Lee

Nested Class Summary
 
Nested classes/interfaces inherited from interface org.jboss.netty.channel.ChannelHandler
ChannelHandler.Sharable
 
Constructor Summary
NumberEncoder()
           
 
Method Summary
protected  Object encode(ChannelHandlerContext ctx, Channel channel, Object msg)
          Transforms the specified message into another message and return the transformed message.
 
Methods inherited from class org.jboss.netty.handler.codec.oneone.OneToOneEncoder
handleDownstream
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

NumberEncoder

public NumberEncoder()
Method Detail

encode

protected Object encode(ChannelHandlerContext ctx,
                        Channel channel,
                        Object msg)
                 throws Exception
Description copied from class: OneToOneEncoder
Transforms the specified message into another message and return the transformed message. Note that you can not return null, unlike you can in OneToOneDecoder.decode(ChannelHandlerContext, Channel, Object); you must return something, at least ChannelBuffers.EMPTY_BUFFER.

Specified by:
encode in class OneToOneEncoder
Throws:
Exception


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