Ans:

Channel:

The channel class is the base class of the message channel class. Here all the channel in messaging must extend this class. Channels are specific protocol-based conduits for messages sent between MessageAgents and remote destinations. Preconfigured channels are obtained within the framework using the ServerConfig.getChannel() method. You can create a Channel directly using the new operator and add it to a ChannelSet directly. The channel represent a physical connection to a remote endpoint. In flex AMFChannelis mostly used.

Methods are following:

applySettings(), connect(), disconnect(), logout(), send(), setCredentials() etc.

Properties are following:

authenticated, channelSets, connected, connectTimeout, endpoint, failoverURIs, protocol, cnnecting, recordMessageSizes, recordMessageTimes, requestTimeout, uri etc.

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