| Name | Description | Type | Package | Framework |
| Channel | A nexus to a network socket or a component which is capable of I/Ooperations such as read, write, connect, and bind. | Interface | io.netty.channel | Netty |
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| Channel .Unsafe | Unsafe operations that should never be called from user-code. | Interface | io.netty.channel.Channel | Netty |
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| ChannelConfig | A set of configuration properties of a Channel. | Interface | io.netty.channel | Netty |
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| ChannelDuplexHandler | | Class | io.netty.channel | Netty |
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| ChannelException | A RuntimeException which is thrown when an I/O operation fails. | Class | io.netty.channel | Netty |
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| ChannelFactory | Creates a new Channel. | Interface | io.netty.channel | Netty |
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| ChannelFlushPromiseNotifier | This implementation allows to register ChannelFuture instances which will get notified once some amount ofdata was written and so a checkpoint was reached. | Class | io.netty.channel | Netty |
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| ChannelFuture | The result of an asynchronous Channel I/O operation. | Interface | io.netty.channel | Netty |
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| ChannelFutureListener | Listens to the result of a ChannelFuture. | Interface | io.netty.channel | Netty |
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| ChannelHandler | Handles an I/O event or intercepts an I/O operation, and forwards it to its next handler inits ChannelPipeline. | Interface | io.netty.channel | Netty |
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| ChannelHandler .Sharable | Indicates that the same instance of the annotated ChannelHandlercan be added to one or more ChannelPipelines multiple times | Class | io.netty.channel.ChannelHandler | Netty |
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| ChannelHandler .Skip | Indicates that the annotated event handler method in ChannelHandler will not be invoked byChannelPipeline. | Class | io.netty.channel.ChannelHandler | Netty |
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| ChannelHandlerAdapter | Skelton implementation of a ChannelHandler. | Class | io.netty.channel | Netty |
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| ChannelHandlerAppender | A ChannelHandler that appends the specified ChannelHandlers right next to itself. | Class | io.netty.channel | Netty |
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| ChannelHandlerContext | Enables a ChannelHandler to interact with its ChannelPipelineand other handlers. | Interface | io.netty.channel | Netty |
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| ChannelHandlerInvoker | Invokes the event handler methods of ChannelHandler. | Interface | io.netty.channel | Netty |
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| ChannelHandlerInvokerUtil | A set of helper methods for easier implementation of custom ChannelHandlerInvoker implementation. | Class | io.netty.channel | Netty |
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| ChannelId | Represents the globally unique identifier of a Channel. | Interface | io.netty.channel | Netty |
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| ChannelInboundHandlerAdapter | | Class | io.netty.channel | Netty |
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| ChannelInitializer | A special ChannelHandler which offers an easy way to initialize a Channel once it wasregistered to its EventLoop. | Class | io.netty.channel | Netty |
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| ChannelMetadata | Represents the properties of a Channel implementation. | Class | io.netty.channel | Netty |
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| ChannelOption | | Class | io.netty.channel | Netty |
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| ChannelOutboundBuffer | (Transport implementors only) an internal data structure used by AbstractChannel to store its pendingoutbound write requests. | Class | io.netty.channel | Netty |
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| ChannelOutboundBuffer .MessageProcessor | | Interface | io.netty.channel.ChannelOutboundBuffer | Netty |
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| ChannelOutboundHandlerAdapter | | Class | io.netty.channel | Netty |
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| ChannelPipeline | A list of ChannelHandlers which handles or intercepts inbound events and outbound operations of aChannel. | Interface | io.netty.channel | Netty |
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| ChannelPipelineException | A ChannelException which is thrown when a ChannelPipelinefailed to execute an operation. | Class | io.netty.channel | Netty |
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| ChannelProgressiveFuture | | Interface | io.netty.channel | Netty |
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| ChannelProgressiveFutureListener | | Interface | io.netty.channel | Netty |
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| ChannelProgressivePromise | Special ChannelPromise which will be notified once the associated bytes is transferring. | Interface | io.netty.channel | Netty |
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| ChannelPromise | Special ChannelFuture which is writable. | Interface | io.netty.channel | Netty |
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| ChannelPromiseAggregator | Class which is used to consolidate multiple channel futures into one, bylistening to the individual futures and producing an aggregated result | Class | io.netty.channel | Netty |
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| ChannelPromiseNotifier | ChannelFutureListener implementation which takes other ChannelFuture(s) and notifies them on completion. | Class | io.netty.channel | Netty |