All Superinterfaces:

ChannelInboundInvoker, ChannelOutboundInvoker, FuturePromiseFactory, Iterable<Map.Entry<String,ChannelHandler>>

All Known Implementing Classes:

AbstractChannel.DefaultAbstractChannelPipeline, DefaultChannelPipeline
```
public interface ChannelPipeline
extends ChannelInboundInvoker, ChannelOutboundInvoker, Iterable<Map.Entry<String,ChannelHandler>>
```
A list of ChannelHandlers which handles or intercepts inbound events and outbound operations of a Channel. ChannelPipeline implements an advanced form of the Intercepting Filter pattern to give a user full control over how an event is handled and how the ChannelHandlers in a pipeline interact with each other.
Creation of a pipeline
Each channel has its own pipeline and it is created automatically when a new channel is created.
How an event flows in a pipeline
The following diagram describes how I/O events are processed by ChannelHandlers in a ChannelPipeline typically. An I/O event is handled by a ChannelHandler (which may handle inbound or / and outbound events) and be forwarded to its closest handler by calling the event propagation methods defined in ChannelHandlerContext, such as ChannelHandlerContext.fireChannelRead(Object) and ChannelOutboundInvoker.write(Object).
```
                                                 I/O Request
                                            via Channel or
                                        ChannelHandlerContext
                                                      |
  +---------------------------------------------------+---------------+
  |                           ChannelPipeline         |               |
  |                                                  \|/              |
  |    +---------------------+            +-----------+----------+    |
  |    | Inbound Handler  N  |            | Outbound Handler  1  |    |
  |    +----------+----------+            +-----------+----------+    |
  |              /|\                                  |               |
  |               |                                  \|/              |
  |    +----------+----------+            +-----------+----------+    |
  |    | Inbound Handler N-1 |            | Outbound Handler  2  |    |
  |    +----------+----------+            +-----------+----------+    |
  |              /|\                                  .               |
  |               .                                   .               |
  | ChannelHandlerContext.fireIN_EVT() ChannelHandlerContext.OUT_EVT()|
  |        [ method call]                       [method call]         |
  |               .                                   .               |
  |               .                                  \|/              |
  |    +----------+----------+            +-----------+----------+    |
  |    | Inbound Handler  2  |            | Outbound Handler M-1 |    |
  |    +----------+----------+            +-----------+----------+    |
  |              /|\                                  |               |
  |               |                                  \|/              |
  |    +----------+----------+            +-----------+----------+    |
  |    | Inbound Handler  1  |            | Outbound Handler  M  |    |
  |    +----------+----------+            +-----------+----------+    |
  |              /|\                                  |               |
  +---------------+-----------------------------------+---------------+
                  |                                  \|/
  +---------------+-----------------------------------+---------------+
  |               |                                   |               |
  |       [ Socket.read() ]                    [ Socket.write() ]     |
  |                                                                   |
  |  Netty Internal I/O Threads (Transport Implementation)            |
  +-------------------------------------------------------------------+
 
```
An inbound event is handled by the inbound handlers in the bottom-up direction as shown on the left side of the diagram. An inbound handler usually handles the inbound data generated by the I/O thread on the bottom of the diagram. The inbound data is often read from a remote peer via the actual input operation such as SocketChannel.read(ByteBuffer). If an inbound event goes beyond the top inbound handler, it is discarded silently, or logged if it needs your attention.
An outbound event is handled by the outbound handler in the top-down direction as shown on the right side of the diagram. An outbound handler usually generates or transforms the outbound traffic such as write requests. If an outbound event goes beyond the bottom outbound handler, it is handled by an I/O thread associated with the Channel. The I/O thread often performs the actual output operation such as SocketChannel.write(ByteBuffer).
For example, let us assume that we created the following pipeline:
```
 ChannelPipeline p = ...;
 p.addLast("1", new InboundHandlerA());
 p.addLast("2", new InboundHandlerB());
 p.addLast("3", new OutboundHandlerA());
 p.addLast("4", new OutboundHandlerB());
 p.addLast("5", new InboundOutboundHandlerX());
 
```
In the example above, the class whose name starts with Inbound means it is an inbound handler. The class whose name starts with Outbound means it is a outbound handler.
In the given example configuration, the handler evaluation order is 1, 2, 3, 4, 5 when an event goes inbound. When an event goes outbound, the order is 5, 4, 3, 2, 1. On top of this principle, ChannelPipeline skips the evaluation of certain handlers to shorten the stack depth:
- 3 and 4 don't implement inbound handling methods of ChannelHandler, and therefore the actual evaluation order of an inbound event will be: 1, 2, and 5.
- 1 and 2 don't implement outbound handling methods of ChannelHandler, and therefore the actual evaluation order of an outbound event will be: 5, 4, and 3.
- If 5 implements both inbound and outbound handling methods of ChannelHandler, the evaluation order of an inbound and a outbound event could be 125 and 543 respectively.
Forwarding an event to the next handler
As you might noticed in the diagram shows, a handler has to invoke the event propagation methods in ChannelHandlerContext to forward an event to its next handler. Those methods include:
- Inbound event propagation methods:
- Outbound event propagation methods:
and the following example shows how the event propagation is usually done:
```
 public class MyInboundHandler implements ChannelHandler {
     @Override
     public void channelActive(ChannelHandlerContext ctx) {
         System.out.println("Connected!");
         ctx.fireChannelActive();
     }
 }

 public class MyOutboundHandler implements ChannelHandler {
     @Override
     public Future<Void> close(ChannelHandlerContext ctx) {
         System.out.println("Closing ..");
         return ctx.close();
     }
 }
 
```
Building a pipeline

A user is supposed to have one or more ChannelHandlers in a pipeline to receive I/O events (e.g. read) and to request I/O operations (e.g. write and close). For example, a typical server will have the following handlers in each channel's pipeline, but your mileage may vary depending on the complexity and characteristics of the protocol and business logic:
1. Protocol Decoder - translates binary data (e.g. Buffer) into a Java object.
2. Protocol Encoder - translates a Java object into binary data.
3. Business Logic Handler - performs the actual business logic (e.g. database access).
and it could be represented as shown in the following example:
```
 ...

 ChannelPipeline pipeline = ch.pipeline();

 pipeline.addLast("decoder", new MyProtocolDecoder());
 pipeline.addLast("encoder", new MyProtocolEncoder());

 // If your business logic does block or take a lot of time you should offload the work to an extra
 // Executor to ensure you don't block the EventLoop.
 pipeline.addLast("handler",  new MyBusinessLogicHandler());
 
```
Thread safety

A ChannelHandler can be added or removed at any time because a ChannelPipeline is thread safe. For example, you can insert an encryption handler when sensitive information is about to be exchanged, and remove it after the exchange.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`ChannelPipeline`	`addAfter(String baseName, String name, ChannelHandler handler)`	Inserts a `ChannelHandler` after an existing handler of this pipeline.
`ChannelPipeline`	`addBefore(String baseName, String name, ChannelHandler handler)`	Inserts a `ChannelHandler` before an existing handler of this pipeline.
`ChannelPipeline`	`addFirst(ChannelHandler... handlers)`	Inserts `ChannelHandler`s at the first position of this pipeline.
`ChannelPipeline`	`addFirst(String name, ChannelHandler handler)`	Inserts a `ChannelHandler` at the first position of this pipeline.
`ChannelPipeline`	`addLast(ChannelHandler... handlers)`	Inserts `ChannelHandler`s at the last position of this pipeline.
`ChannelPipeline`	`addLast(String name, ChannelHandler handler)`	Appends a `ChannelHandler` at the last position of this pipeline.
`Channel`	`channel()`	Returns the `Channel` that this pipeline is attached to.
`ChannelHandlerContext`	`context(ChannelHandler handler)`	Returns the context object of the specified `ChannelHandler` in this pipeline.
`ChannelHandlerContext`	`context(Class<? extends ChannelHandler> handlerType)`	Returns the context object of the `ChannelHandler` of the specified type in this pipeline.
`ChannelHandlerContext`	`context(String name)`	Returns the context object of the `ChannelHandler` with the specified name in this pipeline.
`ChannelPipeline`	`fireChannelActive()`	A `Channel` is active now, which means it is connected.
`ChannelPipeline`	`fireChannelExceptionCaught(Throwable cause)`	A `Channel` received an `Throwable` in one of its inbound operations.
`ChannelPipeline`	`fireChannelInactive()`	A `Channel` is inactive now, which means it is closed.
`ChannelPipeline`	`fireChannelInboundEvent(Object event)`	A `Channel` received a custom defined inbound event.
`ChannelPipeline`	`fireChannelRead(Object msg)`	A `Channel` received a message.
`ChannelPipeline`	`fireChannelReadComplete()`	Triggers an `ChannelHandler.channelReadComplete(ChannelHandlerContext)` event to the next `ChannelHandler` in the `ChannelPipeline`.
`ChannelPipeline`	`fireChannelRegistered()`	A `Channel` was registered to its `EventLoop`.
`ChannelPipeline`	`fireChannelShutdown(ChannelShutdownDirection direction)`	A `Channel` was shutdown in a specific direction.
`ChannelPipeline`	`fireChannelUnregistered()`	A `Channel` was unregistered from its `EventLoop`.
`ChannelPipeline`	`fireChannelWritabilityChanged()`	Triggers an `ChannelHandler.channelWritabilityChanged(ChannelHandlerContext)` event to the next `ChannelHandler` in the `ChannelPipeline`.
`default ChannelHandler`	`first()`	Returns the first `ChannelHandler` in this pipeline.
`ChannelHandlerContext`	`firstContext()`	Returns the context of the first `ChannelHandler` in this pipeline.
`ChannelPipeline`	`flush()`	Request to flush all pending messages via this ChannelOutboundInvoker.
`<T extends ChannelHandler> T`	`get(Class<T> handlerType)`	Returns the `ChannelHandler` of the specified type in this pipeline.
`ChannelHandler`	`get(String name)`	Returns the `ChannelHandler` with the specified name in this pipeline.
`default boolean`	`isEmpty()`	Returns `true` if this `ChannelPipeline` is empty, which means no `ChannelHandler` is present.
`default ChannelHandler`	`last()`	Returns the last `ChannelHandler` in this pipeline.
`ChannelHandlerContext`	`lastContext()`	Returns the context of the last `ChannelHandler` in this pipeline.
`default List<String>`	`names()`	Returns the `List` of the handler names.
`long`	`pendingOutboundBytes()`	The number of the outbound bytes that are buffered / queued in this `ChannelPipeline`.
`default ChannelPipeline`	`remove(ChannelHandler handler)`	Removes the specified `ChannelHandler` from this pipeline.
`default <T extends ChannelHandler> T`	`remove(Class<T> handlerType)`	Removes the `ChannelHandler` of the specified type from this pipeline.
`default ChannelHandler`	`remove(String name)`	Removes the `ChannelHandler` with the specified name from this pipeline.
`ChannelHandler`	`removeFirst()`	Removes the first `ChannelHandler` in this pipeline.
`<T extends ChannelHandler> T`	`removeIfExists(ChannelHandler handler)`	Removes the specified `ChannelHandler` from this pipeline if it exists
`<T extends ChannelHandler> T`	`removeIfExists(Class<T> handlerType)`	Removes the `ChannelHandler` of the specified type from this pipeline if it exists.
`<T extends ChannelHandler> T`	`removeIfExists(String name)`	Removes the `ChannelHandler` with the specified name from this pipeline if it exists.
`ChannelHandler`	`removeLast()`	Removes the last `ChannelHandler` in this pipeline.
`ChannelPipeline`	`replace(ChannelHandler oldHandler, String newName, ChannelHandler newHandler)`	Replaces the specified `ChannelHandler` with a new handler in this pipeline.
`<T extends ChannelHandler> T`	`replace(Class<T> oldHandlerType, String newName, ChannelHandler newHandler)`	Replaces the `ChannelHandler` of the specified type with a new handler in this pipeline.
`ChannelHandler`	`replace(String oldName, String newName, ChannelHandler newHandler)`	Replaces the `ChannelHandler` of the specified name with a new handler in this pipeline.
`Map<String,ChannelHandler>`	`toMap()`	Converts this pipeline into an ordered `Map` whose keys are handler names and whose values are handlers.

Methods inherited from interface io.netty5.channel.ChannelOutboundInvoker
bind, close, connect, connect, deregister, disconnect, executor, newFailedFuture, newPromise, newSucceededFuture, newSucceededFuture, read, register, sendOutboundEvent, shutdown, write, writeAndFlush

Methods inherited from interface java.lang.Iterable
forEach, iterator, spliterator

- Method Detail
  - addFirst
```
ChannelPipeline addFirst(String name,
                         ChannelHandler handler)
```
    Inserts a ChannelHandler at the first position of this pipeline.
    
    Parameters:
    
    name - the name of the handler to insert first
    
    handler - the handler to insert first
    
    Throws:
    
    IllegalArgumentException - if there's an entry with the same name already in the pipeline
    
    NullPointerException - if the specified handler is null
  - addLast
```
ChannelPipeline addLast(String name,
                        ChannelHandler handler)
```
    Appends a ChannelHandler at the last position of this pipeline.
    
    Parameters:
    
    name - the name of the handler to append
    
    handler - the handler to append
    
    Throws:
    
    IllegalArgumentException - if there's an entry with the same name already in the pipeline
    
    NullPointerException - if the specified handler is null
  - addBefore
```
ChannelPipeline addBefore(String baseName,
                          String name,
                          ChannelHandler handler)
```
    Inserts a ChannelHandler before an existing handler of this pipeline.
    
    Parameters:
    
    baseName - the name of the existing handler
    
    name - the name of the handler to insert before
    
    handler - the handler to insert before
    
    Throws:
    
    NoSuchElementException - if there's no such entry with the specified baseName
    
    IllegalArgumentException - if there's an entry with the same name already in the pipeline
    
    NullPointerException - if the specified baseName or handler is null
  - addAfter
```
ChannelPipeline addAfter(String baseName,
                         String name,
                         ChannelHandler handler)
```
    Inserts a ChannelHandler after an existing handler of this pipeline.
    
    Parameters:
    
    baseName - the name of the existing handler
    
    name - the name of the handler to insert after
    
    handler - the handler to insert after
    
    Throws:
    
    NoSuchElementException - if there's no such entry with the specified baseName
    
    IllegalArgumentException - if there's an entry with the same name already in the pipeline
    
    NullPointerException - if the specified baseName or handler is null
  - addFirst
```
ChannelPipeline addFirst(ChannelHandler... handlers)
```
    Inserts ChannelHandlers at the first position of this pipeline. null handlers will be skipped.
    
    Parameters:
    
    handlers - the handlers to insert first
  - addLast
```
ChannelPipeline addLast(ChannelHandler... handlers)
```
    Inserts ChannelHandlers at the last position of this pipeline. null handlers will be skipped.
    
    Parameters:
    
    handlers - the handlers to insert last
  - remove
```
default ChannelPipeline remove(ChannelHandler handler)
```
    Removes the specified ChannelHandler from this pipeline.
    
    Parameters:
    
    handler - the ChannelHandler to remove
    
    Throws:
    
    NoSuchElementException - if there's no such handler in this pipeline
    
    NullPointerException - if the specified handler is null
  - remove
```
default ChannelHandler remove(String name)
```
    Removes the ChannelHandler with the specified name from this pipeline.
    
    Parameters:
    
    name - the name under which the ChannelHandler was stored.
    
    Returns:
    
    the removed handler
    
    Throws:
    
    NoSuchElementException - if there's no such handler with the specified name in this pipeline
    
    NullPointerException - if the specified name is null
  - remove
```
default <T extends ChannelHandler> T remove(Class<T> handlerType)
```
    Removes the ChannelHandler of the specified type from this pipeline.
    
    Type Parameters:
    
    T - the type of the handler
    
    Parameters:
    
    handlerType - the type of the handler
    
    Returns:
    
    the removed handler
    
    Throws:
    
    NoSuchElementException - if there's no such handler of the specified type in this pipeline
    
    NullPointerException - if the specified handler type is null
  - removeIfExists
```
<T extends ChannelHandler> T removeIfExists(String name)
```
    Removes the ChannelHandler with the specified name from this pipeline if it exists.
    
    Parameters:
    
    name - the name under which the ChannelHandler was stored.
    
    Returns:
    
    the removed handler
    
    Throws:
    
    NoSuchElementException - if there's no such handler with the specified name in this pipeline
    
    NullPointerException - if the specified name is null
  - removeIfExists
```
<T extends ChannelHandler> T removeIfExists(Class<T> handlerType)
```
    Removes the ChannelHandler of the specified type from this pipeline if it exists.
    
    Type Parameters:
    
    T - the type of the handler
    
    Parameters:
    
    handlerType - the type of the handler
    
    Returns:
    
    the removed handler or null if it didn't exist.
    
    Throws:
    
    NullPointerException - if the specified handler type is null
  - removeIfExists
```
<T extends ChannelHandler> T removeIfExists(ChannelHandler handler)
```
    Removes the specified ChannelHandler from this pipeline if it exists
    
    Parameters:
    
    handler - the ChannelHandler to remove
    
    Returns:
    
    the removed handler or null if it didn't exist.
    
    Throws:
    
    NullPointerException - if the specified handler is null
  - removeFirst
```
ChannelHandler removeFirst()
```
    Removes the first ChannelHandler in this pipeline.
    
    Returns:
    
    the removed handler
    
    Throws:
    
    NoSuchElementException - if this pipeline is empty
  - removeLast
```
ChannelHandler removeLast()
```
    Removes the last ChannelHandler in this pipeline.
    
    Returns:
    
    the removed handler
    
    Throws:
    
    NoSuchElementException - if this pipeline is empty
  - replace
```
ChannelPipeline replace(ChannelHandler oldHandler,
                        String newName,
                        ChannelHandler newHandler)
```
    Replaces the specified ChannelHandler with a new handler in this pipeline.
    
    Parameters:
    
    oldHandler - the ChannelHandler to be replaced
    
    newName - the name under which the replacement should be added
    
    newHandler - the ChannelHandler which is used as replacement
    
    Returns:
    
    itself
    
    Throws:
    
    NoSuchElementException - if the specified old handler does not exist in this pipeline
    
    IllegalArgumentException - if a handler with the specified new name already exists in this pipeline, except for the handler to be replaced
    
    NullPointerException - if the specified old handler or new handler is null
  - replace
```
ChannelHandler replace(String oldName,
                       String newName,
                       ChannelHandler newHandler)
```
    Replaces the ChannelHandler of the specified name with a new handler in this pipeline.
    
    Parameters:
    
    oldName - the name of the ChannelHandler to be replaced
    
    newName - the name under which the replacement should be added
    
    newHandler - the ChannelHandler which is used as replacement
    
    Returns:
    
    the removed handler
    
    Throws:
    
    NoSuchElementException - if the handler with the specified old name does not exist in this pipeline
    
    IllegalArgumentException - if a handler with the specified new name already exists in this pipeline, except for the handler to be replaced
    
    NullPointerException - if the specified old handler or new handler is null
  - replace
```
<T extends ChannelHandler> T replace(Class<T> oldHandlerType,
                                     String newName,
                                     ChannelHandler newHandler)
```
    Replaces the ChannelHandler of the specified type with a new handler in this pipeline.
    
    Parameters:
    
    oldHandlerType - the type of the handler to be removed
    
    newName - the name under which the replacement should be added
    
    newHandler - the ChannelHandler which is used as replacement
    
    Returns:
    
    the removed handler
    
    Throws:
    
    NoSuchElementException - if the handler of the specified old handler type does not exist in this pipeline
    
    IllegalArgumentException - if a handler with the specified new name already exists in this pipeline, except for the handler to be replaced
    
    NullPointerException - if the specified old handler or new handler is null
  - first
```
default ChannelHandler first()
```
    Returns the first ChannelHandler in this pipeline.
    
    Returns:
    
    the first handler. null if this pipeline is empty.
  - firstContext
```
ChannelHandlerContext firstContext()
```
    Returns the context of the first ChannelHandler in this pipeline.
    
    Returns:
    
    the context of the first handler. null if this pipeline is empty.
  - last
```
default ChannelHandler last()
```
    Returns the last ChannelHandler in this pipeline.
    
    Returns:
    
    the last handler. null if this pipeline is empty.
  - lastContext
```
ChannelHandlerContext lastContext()
```
    Returns the context of the last ChannelHandler in this pipeline.
    
    Returns:
    
    the context of the last handler. null if this pipeline is empty.
  - isEmpty
```
default boolean isEmpty()
```
    Returns true if this ChannelPipeline is empty, which means no ChannelHandler is present.
  - get
```
ChannelHandler get(String name)
```
    Returns the ChannelHandler with the specified name in this pipeline.
    
    Returns:
    
    the handler with the specified name. null if there's no such handler in this pipeline.
  - get
```
<T extends ChannelHandler> T get(Class<T> handlerType)
```
    Returns the ChannelHandler of the specified type in this pipeline.
    
    Returns:
    
    the handler of the specified handler type. null if there's no such handler in this pipeline.
  - context
```
ChannelHandlerContext context(ChannelHandler handler)
```
    Returns the context object of the specified ChannelHandler in this pipeline.
    
    Returns:
    
    the context object of the specified handler. null if there's no such handler in this pipeline.
  - context
```
ChannelHandlerContext context(String name)
```
    Returns the context object of the ChannelHandler with the specified name in this pipeline.
    
    Returns:
    
    the context object of the handler with the specified name. null if there's no such handler in this pipeline.
  - context
```
ChannelHandlerContext context(Class<? extends ChannelHandler> handlerType)
```
    Returns the context object of the ChannelHandler of the specified type in this pipeline.
    
    Returns:
    
    the context object of the handler of the specified type. null if there's no such handler in this pipeline.
  - channel
```
Channel channel()
```
    Returns the Channel that this pipeline is attached to.
    
    Returns:
    
    the channel. null if this pipeline is not attached yet.
  - names
```
default List<String> names()
```
    Returns the List of the handler names.
  - toMap
```
Map<String,ChannelHandler> toMap()
```
    Converts this pipeline into an ordered Map whose keys are handler names and whose values are handlers.
  - fireChannelRegistered
```
ChannelPipeline fireChannelRegistered()
```
    Description copied from interface: ChannelInboundInvoker
    
    A Channel was registered to its EventLoop. This will result in having the ChannelHandler.channelRegistered(ChannelHandlerContext) method called of the next ChannelHandler contained in the ChannelPipeline of the Channel.
    
    Specified by:
    
    fireChannelRegistered in interface ChannelInboundInvoker
  - fireChannelUnregistered
```
ChannelPipeline fireChannelUnregistered()
```
    Description copied from interface: ChannelInboundInvoker
    
    A Channel was unregistered from its EventLoop. This will result in having the ChannelHandler.channelUnregistered(ChannelHandlerContext) method called of the next ChannelHandler contained in the ChannelPipeline of the Channel.
    
    Specified by:
    
    fireChannelUnregistered in interface ChannelInboundInvoker
  - fireChannelActive
```
ChannelPipeline fireChannelActive()
```
    Description copied from interface: ChannelInboundInvoker
    
    A Channel is active now, which means it is connected. This will result in having the ChannelHandler.channelActive(ChannelHandlerContext) method called of the next ChannelHandler contained in the ChannelPipeline of the Channel.
    
    Specified by:
    
    fireChannelActive in interface ChannelInboundInvoker
  - fireChannelInactive
```
ChannelPipeline fireChannelInactive()
```
    Description copied from interface: ChannelInboundInvoker
    
    A Channel is inactive now, which means it is closed. This will result in having the ChannelHandler.channelInactive(ChannelHandlerContext) method called of the next ChannelHandler contained in the ChannelPipeline of the Channel.
    
    Specified by:
    
    fireChannelInactive in interface ChannelInboundInvoker
  - fireChannelShutdown
```
ChannelPipeline fireChannelShutdown(ChannelShutdownDirection direction)
```
    Description copied from interface: ChannelInboundInvoker
    
    A Channel was shutdown in a specific direction. This will result in having the ChannelHandler.channelShutdown(ChannelHandlerContext, ChannelShutdownDirection) method called of the next ChannelHandler contained in the ChannelPipeline of the Channel.
    
    Specified by:
    
    fireChannelShutdown in interface ChannelInboundInvoker
  - fireChannelExceptionCaught
```
ChannelPipeline fireChannelExceptionCaught(Throwable cause)
```
    Description copied from interface: ChannelInboundInvoker
    
    A Channel received an Throwable in one of its inbound operations. This will result in having the ChannelHandler.channelExceptionCaught(ChannelHandlerContext, Throwable) method called of the next ChannelHandler contained in the ChannelPipeline of the Channel.
    
    Specified by:
    
    fireChannelExceptionCaught in interface ChannelInboundInvoker
  - fireChannelInboundEvent
```
ChannelPipeline fireChannelInboundEvent(Object event)
```
    Description copied from interface: ChannelInboundInvoker
    
    A Channel received a custom defined inbound event. This will result in having the ChannelHandler.channelInboundEvent(ChannelHandlerContext, Object) method called of the next ChannelHandler contained in the ChannelPipeline of the Channel.
    
    Specified by:
    
    fireChannelInboundEvent in interface ChannelInboundInvoker
  - fireChannelRead
```
ChannelPipeline fireChannelRead(Object msg)
```
    Description copied from interface: ChannelInboundInvoker
    
    A Channel received a message. This will result in having the ChannelHandler.channelRead(ChannelHandlerContext, Object) method called of the next ChannelHandler contained in the ChannelPipeline of the Channel.
    
    Specified by:
    
    fireChannelRead in interface ChannelInboundInvoker
  - fireChannelReadComplete
```
ChannelPipeline fireChannelReadComplete()
```
    Description copied from interface: ChannelInboundInvoker
    
    Triggers an ChannelHandler.channelReadComplete(ChannelHandlerContext) event to the next ChannelHandler in the ChannelPipeline.
    
    Specified by:
    
    fireChannelReadComplete in interface ChannelInboundInvoker
  - fireChannelWritabilityChanged
```
ChannelPipeline fireChannelWritabilityChanged()
```
    Description copied from interface: ChannelInboundInvoker
    
    Triggers an ChannelHandler.channelWritabilityChanged(ChannelHandlerContext) event to the next ChannelHandler in the ChannelPipeline.
    
    Specified by:
    
    fireChannelWritabilityChanged in interface ChannelInboundInvoker
  - flush
```
ChannelPipeline flush()
```
    Description copied from interface: ChannelOutboundInvoker
    
    Request to flush all pending messages via this ChannelOutboundInvoker.
    
    Specified by:
    
    flush in interface ChannelOutboundInvoker
  - pendingOutboundBytes
```
long pendingOutboundBytes()
```
    The number of the outbound bytes that are buffered / queued in this ChannelPipeline. This number will affect the writability of the Channel together the buffered / queued bytes in the Channel itself.
    
    Returns:
    
    the number of buffered / queued bytes.

Interface ChannelPipeline

Creation of a pipeline

How an event flows in a pipeline

Forwarding an event to the next handler

Building a pipeline

Thread safety

Method Summary

Methods inherited from interface io.netty5.channel.ChannelOutboundInvoker

Methods inherited from interface java.lang.Iterable

Method Detail

addFirst

addLast

addBefore

addAfter

addFirst

addLast

remove

remove

remove

removeIfExists

removeIfExists

removeIfExists

removeFirst

removeLast

replace

replace

replace

first

firstContext

last

lastContext

isEmpty

get

get

context

context

context

channel

names

toMap

fireChannelRegistered

fireChannelUnregistered

fireChannelActive

fireChannelInactive

fireChannelShutdown

fireChannelExceptionCaught

fireChannelInboundEvent

fireChannelRead

fireChannelReadComplete

fireChannelWritabilityChanged

flush

pendingOutboundBytes