CompatibleMarshallingDecoder (Netty API Reference (4.1.22.Final))

java.lang.Object
- io.netty.channel.ChannelHandlerAdapter
- - io.netty.channel.ChannelInboundHandlerAdapter
  - - io.netty.handler.codec.ByteToMessageDecoder
    - - io.netty.handler.codec.ReplayingDecoder<java.lang.Void>
      - io.netty.handler.codec.marshalling.CompatibleMarshallingDecoder

All Implemented Interfaces:

ChannelHandler ， ChannelInboundHandler
```
public class CompatibleMarshallingDecoder
extends ReplayingDecoder<java.lang.Void>
```
ReplayingDecoder其使用Unmarshaller读取对象出的ByteBuf 。如果你可以，你应该使用MarshallingDecoder 。

Nested Class Summary
- Nested classes/interfaces inherited from class io.netty.handler.codec.ByteToMessageDecoder
  ByteToMessageDecoder.Cumulator
- Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler
  ChannelHandler.Sharable

Field Summary

Fields
Modifier and Type	Field and Description
`protected int`	`maxObjectSize`
`protected UnmarshallerProvider`	`provider`

Fields inherited from class io.netty.handler.codec.ByteToMessageDecoder
COMPOSITE_CUMULATOR, MERGE_CUMULATOR

构造方法摘要

构造方法
Constructor and Description
`CompatibleMarshallingDecoder(UnmarshallerProvider provider, int maxObjectSize)` 创建一个新的`CompatibleMarshallingDecoder`实例。

方法摘要

所有方法接口方法具体的方法
Modifier and Type	Method and Description
`protected void`	`decode(ChannelHandlerContext ctx, ByteBuf buffer, java.util.List<java.lang.Object> out)` 解码从一个`ByteBuf`到另一个。
`protected void`	`decodeLast(ChannelHandlerContext ctx, ByteBuf buffer, java.util.List<java.lang.Object> out)` 最后一次被称为`ChannelHandlerContext`无效时。
`void`	`exceptionCaught(ChannelHandlerContext ctx, java.lang.Throwable cause)` 致电`ChannelHandlerContext.fireExceptionCaught(Throwable)`转发到`ChannelPipeline`中的下一个`ChannelHandler` 。

Methods inherited from class io.netty.handler.codec.ReplayingDecoder
callDecode, checkpoint, checkpoint, state, state

Methods inherited from class io.netty.handler.codec.ByteToMessageDecoder
actualReadableBytes, channelInactive, channelRead, channelReadComplete, discardSomeReadBytes, handlerRemoved, handlerRemoved0, internalBuffer, isSingleDecode, setCumulator, setDiscardAfterReads, setSingleDecode, userEventTriggered

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter
channelActive, channelRegistered, channelUnregistered, channelWritabilityChanged

Methods inherited from class io.netty.channel.ChannelHandlerAdapter
ensureNotSharable, handlerAdded, isSharable

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.netty.channel.ChannelHandler
handlerAdded

- 字段详细信息
  - provider
```
protected final UnmarshallerProvider provider
```
  - maxObjectSize
```
protected final int maxObjectSize
```
- 构造方法详细信息
  - CompatibleMarshallingDecoder
```
public CompatibleMarshallingDecoder(UnmarshallerProvider provider,
                                    int maxObjectSize)
```
    创建一个CompatibleMarshallingDecoder的新实例。
    
    参数
    
    provider - UnmarshallerProvider用于获得Unmarshaller的Channel
    
    maxObjectSize -所述的最大尺寸（以字节为单位） Object解组。一旦超过这个尺寸， Channel就会关闭。使用Integer.MAX_VALUE的Integer.MAX_VALUE来禁用它。如果您确定收到的对象永远不会很大并且发送方是可信任的，那么您应该只这样做，因为这会打开由于OutOfMemoryError而导致的DOS攻击的OutOfMemoryError 。
- 方法详细信息
  - decode
```
protected void decode(ChannelHandlerContext ctx,
                      ByteBuf buffer,
                      java.util.List<java.lang.Object> out)
               throws java.lang.Exception
```
    从类复制的描述： ByteToMessageDecoder
    
    解码从一个ByteBuf到另一个。这个方法将被调用，直到输入ByteBuf在从这个方法返回时没有任何东西可读，或者直到从输入ByteBuf没有读到任何东西。
    
    Specified by:
    
    decode在课程 ByteToMessageDecoder
    
    参数
    
    ctx - ByteToMessageDecoder属于的ChannelHandlerContext
    
    buffer - 从中读取数据的ByteBuf
    
    out - 应该添加解码消息的 List
    
    异常
    
    java.lang.Exception - 如果发生错误则抛出
  - decodeLast
```
protected void decodeLast(ChannelHandlerContext ctx,
                          ByteBuf buffer,
                          java.util.List<java.lang.Object> out)
                   throws java.lang.Exception
```
    从类复制的描述： ByteToMessageDecoder
    
    当ChannelHandlerContext处于非活动状态时称为最后一次。这意味着ByteToMessageDecoder.channelInactive(ChannelHandlerContext)被触发。默认情况下，这将只是调用ByteToMessageDecoder.decode(ChannelHandlerContext, ByteBuf, List)，但子类可能会覆盖此一些特殊的清理操作。
    
    重写：
    
    decodeLast在课堂上 ByteToMessageDecoder
    
    异常
    
    java.lang.Exception
  - exceptionCaught
```
public void exceptionCaught(ChannelHandlerContext ctx,
                            java.lang.Throwable cause)
                     throws java.lang.Exception
```
    从类复制的描述： ChannelInboundHandlerAdapter
    
    致电ChannelHandlerContext.fireExceptionCaught(Throwable)转发到ChannelPipeline中的下一个ChannelHandler 。子类可以重写此方法来更改行为。
    
    Specified by:
    
    exceptionCaught在界面 ChannelHandler
    
    Specified by:
    
    exceptionCaught ，界面 ChannelInboundHandler
    
    重写：
    
    exceptionCaught在课程 ChannelInboundHandlerAdapter
    
    异常
    
    java.lang.Exception

Class CompatibleMarshallingDecoder

Nested Class Summary

Nested classes/interfaces inherited from class io.netty.handler.codec.ByteToMessageDecoder

Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

Field Summary

Fields inherited from class io.netty.handler.codec.ByteToMessageDecoder

构造方法摘要

方法摘要

Methods inherited from class io.netty.handler.codec.ReplayingDecoder

Methods inherited from class io.netty.handler.codec.ByteToMessageDecoder

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

Methods inherited from class java.lang.Object

Methods inherited from interface io.netty.channel.ChannelHandler

字段详细信息

provider

maxObjectSize

构造方法详细信息

CompatibleMarshallingDecoder

方法详细信息

decode

decodeLast

exceptionCaught