org.jboss.netty.handler.codec.oneone

类 OneToOneEncoder

java.lang.Object

org.jboss.netty.handler.codec.oneone.OneToOneEncoder

所有已实现的接口:

ChannelDownstreamHandler, ChannelHandler

直接已知子类:

Base64Encoder, CompatibleMarshallingEncoder, CompatibleObjectEncoder, HttpMessageEncoder, LengthFieldPrepender, MarshallingEncoder, NumberEncoder, ObjectEncoder, OneToOneStrictEncoder, ProtobufEncoder, ProtobufVarint32LengthFieldPrepender, SocksMessageEncoder, StringEncoder, WebSocket00FrameEncoder, WebSocket08FrameEncoder

public abstract class OneToOneEncoder
extends java.lang.Object
implements ChannelDownstreamHandler

Transforms a write request into another write request. A typical setup for TCP/IP would be:

 ChannelPipeline pipeline = ...;

 // Decoders
 pipeline.addLast("frameDecoder", new DelimiterBasedFrameDecoder(80, Delimiters.nulDelimiter()));
 pipeline.addLast("customDecoder", new OneToOneDecoder() { ... });

 // Encoder
 pipeline.addLast("customEncoder", new OneToOneEncoder() { ... });
 

嵌套类概要

从接口继承的嵌套类/接口 org.jboss.netty.channel.ChannelHandler

ChannelHandler.Sharable

构造器概要

构造器

限定符	构造器和说明
protected	OneToOneEncoder()

方法概要

方法

限定符和类型	方法和说明
protected boolean	doEncode(ChannelHandlerContext ctx, MessageEvent e)
protected abstract java.lang.Object	encode(ChannelHandlerContext ctx, Channel channel, java.lang.Object msg) Transforms the specified message into another message and return the transformed message.
void	handleDownstream(ChannelHandlerContext ctx, ChannelEvent evt) Handles the specified downstream event.

从类继承的方法 java.lang.Object

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

构造器详细资料

OneToOneEncoder

protected OneToOneEncoder()

方法详细资料

handleDownstream

public void handleDownstream(ChannelHandlerContext ctx,
                    ChannelEvent evt)
                      throws java.lang.Exception

从接口复制的说明: ChannelDownstreamHandler

Handles the specified downstream event.

指定者:

handleDownstream 在接口中 ChannelDownstreamHandler

参数:

ctx - the context object for this handler

evt - the downstream event to process or intercept

抛出:

java.lang.Exception

doEncode

protected boolean doEncode(ChannelHandlerContext ctx,
               MessageEvent e)
                    throws java.lang.Exception

抛出:

java.lang.Exception

encode

protected abstract java.lang.Object encode(ChannelHandlerContext ctx,
                      Channel channel,
                      java.lang.Object msg)
                                    throws java.lang.Exception

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.

抛出:

java.lang.Exception