AbstractChannel (Netty 4.1.109.Final API文档

java.lang.Object
- io.netty.util.DefaultAttributeMap
- - io.netty.channel.AbstractChannel

所有已实现的接口:

Channel, ChannelOutboundInvoker, AttributeMap, java.lang.Comparable<Channel>

直接已知子类:

AbstractEpollServerChannel, AbstractEpollStreamChannel, AbstractKQueueServerChannel, AbstractKQueueStreamChannel, AbstractNioChannel, AbstractOioChannel, AbstractServerChannel, EmbeddedChannel, EpollDatagramChannel, EpollDomainDatagramChannel, KQueueDatagramChannel, KQueueDomainDatagramChannel, LocalChannel
```
public abstract class AbstractChannel
extends DefaultAttributeMap
implements Channel
```
A skeletal Channel implementation.

嵌套类概要

嵌套类
限定符和类型类和说明

protected class AbstractChannel.AbstractUnsafe
Unsafe implementation which sub-classes must extend and use.
- 从接口继承的嵌套类/接口 io.netty.channel.Channel
  Channel.Unsafe

嵌套类
限定符和类型	类和说明
`protected class`	`AbstractChannel.AbstractUnsafe` `Unsafe` implementation which sub-classes must extend and use.

构造器概要

构造器
限定符	构造器和说明
`protected`	`AbstractChannel(Channel parent)` Creates a new instance.
`protected`	`AbstractChannel(Channel parent, ChannelId id)` Creates a new instance.

方法概要

All Methods Instance Methods Abstract Methods Concrete Methods Deprecated Methods
限定符和类型	方法和说明
`ByteBufAllocator`	`alloc()` Return the assigned `ByteBufAllocator` which will be used to allocate `ByteBuf`s.
`ChannelFuture`	`bind(java.net.SocketAddress localAddress)` Request to bind to the given `SocketAddress` and notify the `ChannelFuture` once the operation completes, either because the operation was successful or because of an error.
`ChannelFuture`	`bind(java.net.SocketAddress localAddress, ChannelPromise promise)` Request to bind to the given `SocketAddress` and notify the `ChannelFuture` once the operation completes, either because the operation was successful or because of an error.
`long`	`bytesBeforeUnwritable()` Get how many bytes can be written until `Channel.isWritable()` returns `false`.
`long`	`bytesBeforeWritable()` Get how many bytes must be drained from underlying buffers until `Channel.isWritable()` returns `true`.
`ChannelFuture`	`close()` Request to close the `Channel` and notify the `ChannelFuture` once the operation completes, either because the operation was successful or because of an error.
`ChannelFuture`	`close(ChannelPromise promise)` Request to close the `Channel` and notify the `ChannelFuture` once the operation completes, either because the operation was successful or because of an error.
`ChannelFuture`	`closeFuture()` Returns the `ChannelFuture` which will be notified when this channel is closed.
`int`	`compareTo(Channel o)`
`ChannelFuture`	`connect(java.net.SocketAddress remoteAddress)` Request to connect to the given `SocketAddress` and notify the `ChannelFuture` once the operation completes, either because the operation was successful or because of an error.
`ChannelFuture`	`connect(java.net.SocketAddress remoteAddress, ChannelPromise promise)` Request to connect to the given `SocketAddress` and notify the `ChannelFuture` once the operation completes, either because the operation was successful or because of an error.
`ChannelFuture`	`connect(java.net.SocketAddress remoteAddress, java.net.SocketAddress localAddress)` Request to connect to the given `SocketAddress` while bind to the localAddress and notify the `ChannelFuture` once the operation completes, either because the operation was successful or because of an error.
`ChannelFuture`	`connect(java.net.SocketAddress remoteAddress, java.net.SocketAddress localAddress, ChannelPromise promise)` Request to connect to the given `SocketAddress` while bind to the localAddress and notify the `ChannelFuture` once the operation completes, either because the operation was successful or because of an error.
`ChannelFuture`	`deregister()` Request to deregister from the previous assigned `EventExecutor` and notify the `ChannelFuture` once the operation completes, either because the operation was successful or because of an error.
`ChannelFuture`	`deregister(ChannelPromise promise)` Request to deregister from the previous assigned `EventExecutor` and notify the `ChannelFuture` once the operation completes, either because the operation was successful or because of an error.
`ChannelFuture`	`disconnect()` Request to disconnect from the remote peer and notify the `ChannelFuture` once the operation completes, either because the operation was successful or because of an error.
`ChannelFuture`	`disconnect(ChannelPromise promise)` Request to disconnect from the remote peer and notify the `ChannelFuture` once the operation completes, either because the operation was successful or because of an error.
`protected abstract void`	`doBeginRead()` Schedule a read operation.
`protected abstract void`	`doBind(java.net.SocketAddress localAddress)` Bind the `Channel` to the `SocketAddress`
`protected abstract void`	`doClose()` Close the `Channel`
`protected void`	`doDeregister()` Deregister the `Channel` from its `EventLoop`.
`protected abstract void`	`doDisconnect()` Disconnect this `Channel` from its remote peer
`protected void`	`doRegister()` Is called after the `Channel` is registered with its `EventLoop` as part of the register process.
`protected void`	`doShutdownOutput()` Called when conditions justify shutting down the output portion of the channel.
`protected abstract void`	`doWrite(ChannelOutboundBuffer in)` Flush the content of the given buffer to the remote peer.
`boolean`	`equals(java.lang.Object o)` Returns `true` if and only if the specified object is identical with this channel (i.e: `this == o`).
`EventLoop`	`eventLoop()` Return the `EventLoop` this `Channel` was registered to.
`protected java.lang.Object`	`filterOutboundMessage(java.lang.Object msg)` Invoked when a new message is added to a `ChannelOutboundBuffer` of this `AbstractChannel`, so that the `Channel` implementation converts the message to another.
`Channel`	`flush()` Request to flush all pending messages via this ChannelOutboundInvoker.
`int`	`hashCode()` Returns the ID of this channel.
`ChannelId`	`id()` Returns the globally unique identifier of this `Channel`.
`protected void`	`invalidateLocalAddress()` 已过时。 no use-case for this.
`protected void`	`invalidateRemoteAddress()` 已过时。 no use-case for this.
`protected abstract boolean`	`isCompatible(EventLoop loop)` Return `true` if the given `EventLoop` is compatible with this instance.
`boolean`	`isRegistered()` Returns `true` if the `Channel` is registered with an `EventLoop`.
`boolean`	`isWritable()` Returns `true` if and only if the I/O thread will perform the requested write operation immediately.
`java.net.SocketAddress`	`localAddress()` Returns the local address where this channel is bound to.
`protected abstract java.net.SocketAddress`	`localAddress0()` Returns the `SocketAddress` which is bound locally.
`protected int`	`maxMessagesPerWrite()`
`protected DefaultChannelPipeline`	`newChannelPipeline()` Returns a new `DefaultChannelPipeline` instance.
`ChannelFuture`	`newFailedFuture(java.lang.Throwable cause)` Create a new `ChannelFuture` which is marked as failed already.
`protected ChannelId`	`newId()` Returns a new `DefaultChannelId` instance.
`ChannelProgressivePromise`	`newProgressivePromise()` Return an new `ChannelProgressivePromise`
`ChannelPromise`	`newPromise()` Return a new `ChannelPromise`.
`ChannelFuture`	`newSucceededFuture()` Create a new `ChannelFuture` which is marked as succeeded already.
`protected abstract AbstractChannel.AbstractUnsafe`	`newUnsafe()` Create a new `AbstractChannel.AbstractUnsafe` instance which will be used for the life-time of the `Channel`
`Channel`	`parent()` Returns the parent of this channel.
`ChannelPipeline`	`pipeline()` Return the assigned `ChannelPipeline`.
`Channel`	`read()` Request to Read data from the `Channel` into the first inbound buffer, triggers an `ChannelInboundHandler.channelRead(ChannelHandlerContext, Object)` event if data was read, and triggers a `channelReadComplete` event so the handler can decide to continue reading.
`java.net.SocketAddress`	`remoteAddress()` Returns the remote address where this channel is connected to.
`protected abstract java.net.SocketAddress`	`remoteAddress0()` Return the `SocketAddress` which the `Channel` is connected to.
`java.lang.String`	`toString()` Returns the `String` representation of this channel.
`Channel.Unsafe`	`unsafe()` Returns an internal-use-only object that provides unsafe operations.
`protected void`	`validateFileRegion(DefaultFileRegion region, long position)`
`ChannelPromise`	`voidPromise()` Return a special ChannelPromise which can be reused for different operations.
`ChannelFuture`	`write(java.lang.Object msg)` Request to write a message via this `ChannelHandlerContext` through the `ChannelPipeline`.
`ChannelFuture`	`write(java.lang.Object msg, ChannelPromise promise)` Request to write a message via this `ChannelHandlerContext` through the `ChannelPipeline`.
`ChannelFuture`	`writeAndFlush(java.lang.Object msg)` Shortcut for call `ChannelOutboundInvoker.write(Object)` and `ChannelOutboundInvoker.flush()`.
`ChannelFuture`	`writeAndFlush(java.lang.Object msg, ChannelPromise promise)` Shortcut for call `ChannelOutboundInvoker.write(Object, ChannelPromise)` and `ChannelOutboundInvoker.flush()`.

从类继承的方法 io.netty.util.DefaultAttributeMap
attr, hasAttr

从类继承的方法 java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

从接口继承的方法 io.netty.channel.Channel
config, isActive, isOpen, metadata

从接口继承的方法 io.netty.util.AttributeMap
attr, hasAttr

- 构造器详细资料
  - AbstractChannel
```
protected AbstractChannel(Channel parent)
```
    Creates a new instance.
    
    参数:
    
    parent - the parent of this channel. null if there's no parent.
  - AbstractChannel
```
protected AbstractChannel(Channel parent,
                          ChannelId id)
```
    Creates a new instance.
    
    参数:
    
    parent - the parent of this channel. null if there's no parent.
- 方法详细资料
  - maxMessagesPerWrite
```
protected final int maxMessagesPerWrite()
```
  - id
```
public final ChannelId id()
```
    从接口复制的说明: Channel
    
    Returns the globally unique identifier of this Channel.
    
    指定者:
    
    id 在接口中 Channel
  - newId
```
protected ChannelId newId()
```
    Returns a new DefaultChannelId instance. Subclasses may override this method to assign custom ChannelIds to Channels that use the AbstractChannel(Channel) constructor.
  - newChannelPipeline
```
protected DefaultChannelPipeline newChannelPipeline()
```
    Returns a new DefaultChannelPipeline instance.
  - isWritable
```
public boolean isWritable()
```
    从接口复制的说明: Channel
    
    Returns true if and only if the I/O thread will perform the requested write operation immediately. Any write requests made when this method returns false are queued until the I/O thread is ready to process the queued write requests. WriteBufferWaterMark can be used to configure on which condition the write buffer would cause this channel to change writability.
    
    指定者:
    
    isWritable 在接口中 Channel
  - bytesBeforeUnwritable
```
public long bytesBeforeUnwritable()
```
    从接口复制的说明: Channel
    
    Get how many bytes can be written until Channel.isWritable() returns false. This quantity will always be non-negative. If Channel.isWritable() is false then 0. WriteBufferWaterMark can be used to define writability settings.
    
    指定者:
    
    bytesBeforeUnwritable 在接口中 Channel
  - bytesBeforeWritable
```
public long bytesBeforeWritable()
```
    从接口复制的说明: Channel
    
    Get how many bytes must be drained from underlying buffers until Channel.isWritable() returns true. This quantity will always be non-negative. If Channel.isWritable() is true then 0. WriteBufferWaterMark can be used to define writability settings.
    
    指定者:
    
    bytesBeforeWritable 在接口中 Channel
  - parent
```
public Channel parent()
```
    从接口复制的说明: Channel
    
    Returns the parent of this channel.
    
    指定者:
    
    parent 在接口中 Channel
    
    返回:
    
    the parent channel. null if this channel does not have a parent channel.
  - pipeline
```
public ChannelPipeline pipeline()
```
    从接口复制的说明: Channel
    
    Return the assigned ChannelPipeline.
    
    指定者:
    
    pipeline 在接口中 Channel
  - alloc
```
public ByteBufAllocator alloc()
```
    从接口复制的说明: Channel
    
    Return the assigned ByteBufAllocator which will be used to allocate ByteBufs.
    
    指定者:
    
    alloc 在接口中 Channel
  - eventLoop
```
public EventLoop eventLoop()
```
    从接口复制的说明: Channel
    
    Return the EventLoop this Channel was registered to.
    
    指定者:
    
    eventLoop 在接口中 Channel
  - localAddress
```
public java.net.SocketAddress localAddress()
```
    从接口复制的说明: Channel
    
    Returns the local address where this channel is bound to. The returned SocketAddress is supposed to be down-cast into more concrete type such as InetSocketAddress to retrieve the detailed information.
    
    指定者:
    
    localAddress 在接口中 Channel
    
    返回:
    
    the local address of this channel. null if this channel is not bound.
  - invalidateLocalAddress
```
@Deprecated
protected void invalidateLocalAddress()
```
    已过时。 no use-case for this.
  - remoteAddress
```
public java.net.SocketAddress remoteAddress()
```
    从接口复制的说明: Channel
    
    Returns the remote address where this channel is connected to. The returned SocketAddress is supposed to be down-cast into more concrete type such as InetSocketAddress to retrieve the detailed information.
    
    指定者:
    
    remoteAddress 在接口中 Channel
    
    返回:
    
    the remote address of this channel. null if this channel is not connected. If this channel is not connected but it can receive messages from arbitrary remote addresses (e.g. DatagramChannel, use DefaultAddressedEnvelope.recipient() to determine the origination of the received message as this method will return null.
  - invalidateRemoteAddress
```
@Deprecated
protected void invalidateRemoteAddress()
```
    已过时。 no use-case for this.
  - isRegistered
```
public boolean isRegistered()
```
    从接口复制的说明: Channel
    
    Returns true if the Channel is registered with an EventLoop.
    
    指定者:
    
    isRegistered 在接口中 Channel
  - bind
```
public ChannelFuture bind(java.net.SocketAddress localAddress)
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to bind to the given SocketAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
    This will result in having the ChannelOutboundHandler.bind(ChannelHandlerContext, SocketAddress, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.
    
    指定者:
    
    bind 在接口中 ChannelOutboundInvoker
  - connect
```
public ChannelFuture connect(java.net.SocketAddress remoteAddress)
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to connect to the given SocketAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
    If the connection fails because of a connection timeout, the ChannelFuture will get failed with a ConnectTimeoutException. If it fails because of connection refused a ConnectException will be used.
    This will result in having the ChannelOutboundHandler.connect(ChannelHandlerContext, SocketAddress, SocketAddress, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.
    
    指定者:
    
    connect 在接口中 ChannelOutboundInvoker
  - connect
```
public ChannelFuture connect(java.net.SocketAddress remoteAddress,
                             java.net.SocketAddress localAddress)
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to connect to the given SocketAddress while bind to the localAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
    This will result in having the ChannelOutboundHandler.connect(ChannelHandlerContext, SocketAddress, SocketAddress, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.
    
    指定者:
    
    connect 在接口中 ChannelOutboundInvoker
  - disconnect
```
public ChannelFuture disconnect()
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to disconnect from the remote peer and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
    This will result in having the ChannelOutboundHandler.disconnect(ChannelHandlerContext, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.
    
    指定者:
    
    disconnect 在接口中 ChannelOutboundInvoker
  - close
```
public ChannelFuture close()
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to close the Channel and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error. After it is closed it is not possible to reuse it again.
    This will result in having the ChannelOutboundHandler.close(ChannelHandlerContext, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.
    
    指定者:
    
    close 在接口中 ChannelOutboundInvoker
  - deregister
```
public ChannelFuture deregister()
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to deregister from the previous assigned EventExecutor and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error.
    This will result in having the ChannelOutboundHandler.deregister(ChannelHandlerContext, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.
    
    指定者:
    
    deregister 在接口中 ChannelOutboundInvoker
  - flush
```
public Channel flush()
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to flush all pending messages via this ChannelOutboundInvoker.
    
    指定者:
    
    flush 在接口中 Channel
    
    指定者:
    
    flush 在接口中 ChannelOutboundInvoker
  - bind
```
public ChannelFuture bind(java.net.SocketAddress localAddress,
                          ChannelPromise promise)
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to bind to the given SocketAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error. The given ChannelPromise will be notified.
    This will result in having the ChannelOutboundHandler.bind(ChannelHandlerContext, SocketAddress, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.
    
    指定者:
    
    bind 在接口中 ChannelOutboundInvoker
  - connect
```
public ChannelFuture connect(java.net.SocketAddress remoteAddress,
                             ChannelPromise promise)
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to connect to the given SocketAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error. The given ChannelFuture will be notified.
    If the connection fails because of a connection timeout, the ChannelFuture will get failed with a ConnectTimeoutException. If it fails because of connection refused a ConnectException will be used.
    This will result in having the ChannelOutboundHandler.connect(ChannelHandlerContext, SocketAddress, SocketAddress, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.
    
    指定者:
    
    connect 在接口中 ChannelOutboundInvoker
  - connect
```
public ChannelFuture connect(java.net.SocketAddress remoteAddress,
                             java.net.SocketAddress localAddress,
                             ChannelPromise promise)
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to connect to the given SocketAddress while bind to the localAddress and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error. The given ChannelPromise will be notified and also returned.
    This will result in having the ChannelOutboundHandler.connect(ChannelHandlerContext, SocketAddress, SocketAddress, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.
    
    指定者:
    
    connect 在接口中 ChannelOutboundInvoker
  - disconnect
```
public ChannelFuture disconnect(ChannelPromise promise)
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to disconnect from the remote peer and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error. The given ChannelPromise will be notified.
    This will result in having the ChannelOutboundHandler.disconnect(ChannelHandlerContext, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.
    
    指定者:
    
    disconnect 在接口中 ChannelOutboundInvoker
  - close
```
public ChannelFuture close(ChannelPromise promise)
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to close the Channel and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error. After it is closed it is not possible to reuse it again. The given ChannelPromise will be notified.
    This will result in having the ChannelOutboundHandler.close(ChannelHandlerContext, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.
    
    指定者:
    
    close 在接口中 ChannelOutboundInvoker
  - deregister
```
public ChannelFuture deregister(ChannelPromise promise)
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to deregister from the previous assigned EventExecutor and notify the ChannelFuture once the operation completes, either because the operation was successful or because of an error. The given ChannelPromise will be notified.
    This will result in having the ChannelOutboundHandler.deregister(ChannelHandlerContext, ChannelPromise) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.
    
    指定者:
    
    deregister 在接口中 ChannelOutboundInvoker
  - read
```
public Channel read()
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to Read data from the Channel into the first inbound buffer, triggers an ChannelInboundHandler.channelRead(ChannelHandlerContext, Object) event if data was read, and triggers a channelReadComplete event so the handler can decide to continue reading. If there's a pending read operation already, this method does nothing.
    This will result in having the ChannelOutboundHandler.read(ChannelHandlerContext) method called of the next ChannelOutboundHandler contained in the ChannelPipeline of the Channel.
    
    指定者:
    
    read 在接口中 Channel
    
    指定者:
    
    read 在接口中 ChannelOutboundInvoker
  - write
```
public ChannelFuture write(java.lang.Object msg)
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to write a message via this ChannelHandlerContext through the ChannelPipeline. This method will not request to actual flush, so be sure to call ChannelOutboundInvoker.flush() once you want to request to flush all pending data to the actual transport.
    
    指定者:
    
    write 在接口中 ChannelOutboundInvoker
  - write
```
public ChannelFuture write(java.lang.Object msg,
                           ChannelPromise promise)
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Request to write a message via this ChannelHandlerContext through the ChannelPipeline. This method will not request to actual flush, so be sure to call ChannelOutboundInvoker.flush() once you want to request to flush all pending data to the actual transport.
    
    指定者:
    
    write 在接口中 ChannelOutboundInvoker
  - writeAndFlush
```
public ChannelFuture writeAndFlush(java.lang.Object msg)
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Shortcut for call ChannelOutboundInvoker.write(Object) and ChannelOutboundInvoker.flush().
    
    指定者:
    
    writeAndFlush 在接口中 ChannelOutboundInvoker
  - writeAndFlush
```
public ChannelFuture writeAndFlush(java.lang.Object msg,
                                   ChannelPromise promise)
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Shortcut for call ChannelOutboundInvoker.write(Object, ChannelPromise) and ChannelOutboundInvoker.flush().
    
    指定者:
    
    writeAndFlush 在接口中 ChannelOutboundInvoker
  - newPromise
```
public ChannelPromise newPromise()
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Return a new ChannelPromise.
    
    指定者:
    
    newPromise 在接口中 ChannelOutboundInvoker
  - newProgressivePromise
```
public ChannelProgressivePromise newProgressivePromise()
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Return an new ChannelProgressivePromise
    
    指定者:
    
    newProgressivePromise 在接口中 ChannelOutboundInvoker
  - newSucceededFuture
```
public ChannelFuture newSucceededFuture()
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Create a new ChannelFuture which is marked as succeeded already. So Future.isSuccess() will return true. All FutureListener added to it will be notified directly. Also every call of blocking methods will just return without blocking.
    
    指定者:
    
    newSucceededFuture 在接口中 ChannelOutboundInvoker
  - newFailedFuture
```
public ChannelFuture newFailedFuture(java.lang.Throwable cause)
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Create a new ChannelFuture which is marked as failed already. So Future.isSuccess() will return false. All FutureListener added to it will be notified directly. Also every call of blocking methods will just return without blocking.
    
    指定者:
    
    newFailedFuture 在接口中 ChannelOutboundInvoker
  - closeFuture
```
public ChannelFuture closeFuture()
```
    从接口复制的说明: Channel
    
    Returns the ChannelFuture which will be notified when this channel is closed. This method always returns the same future instance.
    
    指定者:
    
    closeFuture 在接口中 Channel
  - unsafe
```
public Channel.Unsafe unsafe()
```
    从接口复制的说明: Channel
    
    Returns an internal-use-only object that provides unsafe operations.
    
    指定者:
    
    unsafe 在接口中 Channel
  - newUnsafe
```
protected abstract AbstractChannel.AbstractUnsafe newUnsafe()
```
    Create a new AbstractChannel.AbstractUnsafe instance which will be used for the life-time of the Channel
  - hashCode
```
public final int hashCode()
```
    Returns the ID of this channel.
    
    覆盖:
    
    hashCode 在类中 java.lang.Object
  - equals
```
public final boolean equals(java.lang.Object o)
```
    Returns true if and only if the specified object is identical with this channel (i.e: this == o).
    
    覆盖:
    
    equals 在类中 java.lang.Object
  - compareTo
```
public final int compareTo(Channel o)
```
    指定者:
    
    compareTo 在接口中 java.lang.Comparable<Channel>
  - toString
```
public java.lang.String toString()
```
    Returns the String representation of this channel. The returned string contains the ID, local address, and remote address of this channel for easier identification.
    
    覆盖:
    
    toString 在类中 java.lang.Object
  - voidPromise
```
public final ChannelPromise voidPromise()
```
    从接口复制的说明: ChannelOutboundInvoker
    
    Return a special ChannelPromise which can be reused for different operations.
    It's only supported to use it for ChannelOutboundInvoker.write(Object, ChannelPromise).
    
    Be aware that the returned ChannelPromise will not support most operations and should only be used if you want to save an object allocation for every write operation. You will not be able to detect if the operation was complete, only if it failed as the implementation will call ChannelPipeline.fireExceptionCaught(Throwable) in this case.
    Be aware this is an expert feature and should be used with care!
    
    指定者:
    
    voidPromise 在接口中 ChannelOutboundInvoker
  - isCompatible
```
protected abstract boolean isCompatible(EventLoop loop)
```
    Return true if the given EventLoop is compatible with this instance.
  - localAddress0
```
protected abstract java.net.SocketAddress localAddress0()
```
    Returns the SocketAddress which is bound locally.
  - remoteAddress0
```
protected abstract java.net.SocketAddress remoteAddress0()
```
    Return the SocketAddress which the Channel is connected to.
  - doRegister
```
protected void doRegister()
                   throws java.lang.Exception
```
    Is called after the Channel is registered with its EventLoop as part of the register process. Sub-classes may override this method
    
    抛出:
    
    java.lang.Exception
  - doBind
```
protected abstract void doBind(java.net.SocketAddress localAddress)
                        throws java.lang.Exception
```
    Bind the Channel to the SocketAddress
    
    抛出:
    
    java.lang.Exception
  - doDisconnect
```
protected abstract void doDisconnect()
                              throws java.lang.Exception
```
    Disconnect this Channel from its remote peer
    
    抛出:
    
    java.lang.Exception
  - doClose
```
protected abstract void doClose()
                         throws java.lang.Exception
```
    Close the Channel
    
    抛出:
    
    java.lang.Exception
  - doShutdownOutput
```
@UnstableApi
protected void doShutdownOutput()
                                       throws java.lang.Exception
```
    Called when conditions justify shutting down the output portion of the channel. This may happen if a write operation throws an exception.
    
    抛出:
    
    java.lang.Exception
  - doDeregister
```
protected void doDeregister()
                     throws java.lang.Exception
```
    Deregister the Channel from its EventLoop. Sub-classes may override this method
    
    抛出:
    
    java.lang.Exception
  - doBeginRead
```
protected abstract void doBeginRead()
                             throws java.lang.Exception
```
    Schedule a read operation.
    
    抛出:
    
    java.lang.Exception
  - doWrite
```
protected abstract void doWrite(ChannelOutboundBuffer in)
                         throws java.lang.Exception
```
    Flush the content of the given buffer to the remote peer.
    
    抛出:
    
    java.lang.Exception
  - filterOutboundMessage
```
protected java.lang.Object filterOutboundMessage(java.lang.Object msg)
                                          throws java.lang.Exception
```
    Invoked when a new message is added to a ChannelOutboundBuffer of this AbstractChannel, so that the Channel implementation converts the message to another. (e.g. heap buffer -> direct buffer)
    
    抛出:
    
    java.lang.Exception
  - validateFileRegion
```
protected void validateFileRegion(DefaultFileRegion region,
                                  long position)
                           throws java.io.IOException
```
    抛出:
    
    java.io.IOException

类 AbstractChannel

嵌套类概要

从接口继承的嵌套类/接口 io.netty.channel.Channel

构造器概要

方法概要

从类继承的方法 io.netty.util.DefaultAttributeMap

从类继承的方法 java.lang.Object

从接口继承的方法 io.netty.channel.Channel

从接口继承的方法 io.netty.util.AttributeMap

构造器详细资料

AbstractChannel

AbstractChannel

方法详细资料

maxMessagesPerWrite

id

newId

newChannelPipeline

isWritable

bytesBeforeUnwritable

bytesBeforeWritable

parent

pipeline

alloc

eventLoop

localAddress

invalidateLocalAddress

remoteAddress

invalidateRemoteAddress

isRegistered

bind

connect

connect

disconnect

close

deregister

flush

bind

connect

connect

disconnect

close

deregister

read

write

write

writeAndFlush

writeAndFlush

newPromise

newProgressivePromise

newSucceededFuture

newFailedFuture

closeFuture

unsafe

newUnsafe

hashCode

equals

compareTo

toString

voidPromise

isCompatible

localAddress0

remoteAddress0

doRegister

doBind

doDisconnect

doClose

doShutdownOutput

doDeregister

doBeginRead

doWrite

filterOutboundMessage

validateFileRegion