ObjectEncoder (Netty/Codec/Base 4.2.0.Final API)

java.lang.Object
- io.netty.channel.ChannelHandlerAdapter
- - io.netty.channel.ChannelOutboundHandlerAdapter
  - - io.netty.handler.codec.MessageToByteEncoder<Serializable>
    - - io.netty.handler.codec.serialization.ObjectEncoder

All Implemented Interfaces:

io.netty.channel.ChannelHandler, io.netty.channel.ChannelOutboundHandler
```
@Deprecated
@Sharable
public class ObjectEncoder
extends MessageToByteEncoder<Serializable>
```
Deprecated.
This class has been deprecated with no replacement, because serialization can be a security liability

An encoder which serializes a Java object into a ByteBuf.
Please note that the serialized form this encoder produces is not compatible with the standard ObjectInputStream. Please use ObjectDecoder or ObjectDecoderInputStream to ensure the interoperability with this encoder.
Security: serialization can be a security liability, and should not be used without defining a list of classes that are allowed to be desirialized. Such a list can be specified with the jdk.serialFilter system property, for instance. See the serialization filtering article for more information.

Nested Class Summary
- Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler
  io.netty.channel.ChannelHandler.Sharable

Constructor Summary

Constructors
Constructor Description

ObjectEncoder()
Deprecated.

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`protected void`	`encode(io.netty.channel.ChannelHandlerContext ctx, Serializable msg, io.netty.buffer.ByteBuf out)`	Deprecated. Encode a message into a `ByteBuf`.

Methods inherited from class io.netty.handler.codec.MessageToByteEncoder
acceptOutboundMessage, allocateBuffer, isPreferDirect, write

Methods inherited from class io.netty.channel.ChannelOutboundHandlerAdapter
bind, close, connect, deregister, disconnect, flush, read

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

- Constructor Detail
  - ObjectEncoder
```
public ObjectEncoder()
```
    Deprecated.
- Method Detail
  - encode
```
protected void encode(io.netty.channel.ChannelHandlerContext ctx,
                      Serializable msg,
                      io.netty.buffer.ByteBuf out)
               throws Exception
```
    Deprecated.
    
    Description copied from class: MessageToByteEncoder
    
    Encode a message into a ByteBuf. This method will be called for each written message that can be handled by this encoder.
    
    Specified by:
    
    encode in class MessageToByteEncoder<Serializable>
    
    Parameters:
    
    ctx - the ChannelHandlerContext which this MessageToByteEncoder belongs to
    
    msg - the message to encode
    
    out - the ByteBuf into which the encoded message will be written
    
    Throws:
    
    Exception - is thrown if an error occurs