org.jboss.netty.channel

Interface LifeCycleAwareChannelHandler

All Superinterfaces:

ChannelHandler

All Known Implementing Classes:

BigIntegerDecoder, BufferedWriteHandler, ChunkedWriteHandler, CompatibleMarshallingDecoder, DelimiterBasedFrameDecoder, FixedLengthFrameDecoder, FrameDecoder, HttpChunkAggregator, HttpClientCodec.Decoder, HttpContentCompressor, HttpContentDecoder, HttpContentDecompressor, HttpContentEncoder, HttpMessageDecoder, HttpRequestDecoder, HttpResponseDecoder, IdleStateHandler, JdkZlibEncoder, LengthFieldBasedFrameDecoder, LineBasedFrameDecoder, MarshallingDecoder, ObjectDecoder, PortUnificationServerHandler, ProtobufVarint32FrameDecoder, ReadTimeoutHandler, ReplayingDecoder, RtspMessageDecoder, RtspRequestDecoder, RtspResponseDecoder, SocksAuthRequestDecoder, SocksAuthResponseDecoder, SocksCmdRequestDecoder, SocksCmdResponseDecoder, SocksInitRequestDecoder, SocksInitResponseDecoder, SpdyFrameCodec, SslHandler, WebSocket00FrameDecoder, WebSocket07FrameDecoder, WebSocket08FrameDecoder, WebSocket13FrameDecoder, WebSocketServerProtocolHandler, ZlibEncoder

public interface LifeCycleAwareChannelHandler
extends ChannelHandler

A ChannelHandler that is notified when it is added to or removed from a ChannelPipeline.

Invalid access to the ChannelHandlerContext

Calling ChannelHandlerContext.sendUpstream(ChannelEvent) or ChannelHandlerContext.sendDownstream(ChannelEvent) in beforeAdd(ChannelHandlerContext) or afterRemove(ChannelHandlerContext) might lead to an unexpected behavior. It is because the context object might not have been fully added to the pipeline or the context object is not a part of the pipeline anymore respectively.

Nested Class Summary

Nested classes/interfaces inherited from interface org.jboss.netty.channel.ChannelHandler

ChannelHandler.Sharable

Method Summary

Modifier and Type	Method and Description
void	afterAdd(ChannelHandlerContext ctx)
void	afterRemove(ChannelHandlerContext ctx)
void	beforeAdd(ChannelHandlerContext ctx)
void	beforeRemove(ChannelHandlerContext ctx)

Method Detail

beforeAdd

void beforeAdd(ChannelHandlerContext ctx)
        throws java.lang.Exception

Throws:

java.lang.Exception

afterAdd

void afterAdd(ChannelHandlerContext ctx)
       throws java.lang.Exception

Throws:

java.lang.Exception

beforeRemove

void beforeRemove(ChannelHandlerContext ctx)
           throws java.lang.Exception

Throws:

java.lang.Exception

afterRemove

void afterRemove(ChannelHandlerContext ctx)
          throws java.lang.Exception

Throws:

java.lang.Exception