org.activeio
Interface Channel

All Superinterfaces:

Disposable, Service

All Known Subinterfaces:

AsyncChannel, AsyncChannelServer, AsyncCommandChannel, AsynchChannel, ChannelServer, InputAsyncChannel, InputStreamChannel, InputSyncChannel, OutputChannel, OutputStreamChannel, RequestChannel, StreamChannel, StreamChannelServer, SyncChannel, SyncChannelServer

All Known Implementing Classes:

AsyncChannelToAsyncCommandChannel, AsyncChannelToClientRequestChannel, AsyncChannelToConcurrentRequestChannel, AsyncChannelToServerRequestChannel, AsyncToSyncChannel, AsyncToSyncChannelServer, AsyncWriteAsyncChannel, CounterAsyncChannel, DatagramSocketSyncChannel, FilterAsyncChannel, FilterAsyncChannelServer, FilterSyncChannel, FilterSyncChannelServer, NIOAsyncChannel, NIOAsyncChannelServer, NIOSyncChannel, NIOSyncChannelServer, OnePortAsyncChannelServer, PacketAggregatingAsyncChannel, PacketAggregatingSyncChannel, PushbackSyncChannel, SocketStreamChannel, SocketStreamChannelServer, SocketSyncChannel, SocketSyncChannelServer, SynchornizedAsyncChannel, SynchornizedSyncChannel, SynchToAsynchChannelAdapter, SyncToAsyncChannel, SyncToAsyncChannelServer, VMPipeAsyncChannelFactory.ClassloaderAsyncChannelAdapter, VMPipeAsyncChannelPipe.PipeChannel, VMPipeAsyncChannelServer, WriteBufferedAsyncChannel, WriteBufferedSyncChannel

public interface Channel
extends Disposable, Service

A Channel provides a standard procedure for regulating data transmission between applications. The activeio API encourages that layered wire protocols be created by wiring together a chain of Channel objects.

Version:

$Revision$

Field Summary

Fields inherited from interface org.activeio.Service

NO_WAIT_TIMEOUT, WAIT_FOREVER_TIMEOUT

Method Summary

Object

narrow(Class target) Since a Channel may be composed from a chain of other Channel obejcts, this method allows you to query the chain for the specified interface.

Methods inherited from interface org.activeio.Disposable

dispose

Methods inherited from interface org.activeio.Service

start, stop

Method Detail

narrow

Object narrow(Class target)

Since a Channel may be composed from a chain of other Channel obejcts, this method allows you to query the chain for the specified interface. The first Channel in the chain the implments the requested interface will be return an implementing object. If no Channel in the chain implements the requested class, then null is returned.