DatagramDnsResponseDecoder (Netty API Reference (4.2.0.Final))

java.lang.Object
- io.netty.channel.ChannelHandlerAdapter
- - io.netty.channel.ChannelInboundHandlerAdapter
  - - io.netty.handler.codec.MessageToMessageDecoder<DatagramPacket>
    - - io.netty.handler.codec.dns.DatagramDnsResponseDecoder

All Implemented Interfaces:

ChannelHandler, ChannelInboundHandler
```
@Sharable
public class DatagramDnsResponseDecoder
extends MessageToMessageDecoder<DatagramPacket>
```
Decodes a DatagramPacket into a DatagramDnsResponse.

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

Constructor Summary

Constructors
Constructor	Description
`DatagramDnsResponseDecoder()`	Creates a new decoder with the default record decoder.
`DatagramDnsResponseDecoder(DnsRecordDecoder recordDecoder)`	Creates a new decoder with the specified `recordDecoder`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`decode(ChannelHandlerContext ctx, DatagramPacket packet, java.util.List<java.lang.Object> out)`	Decode from one message to an other.
`protected DnsResponse`	`decodeResponse(ChannelHandlerContext ctx, DatagramPacket packet)`

Methods inherited from class io.netty.handler.codec.MessageToMessageDecoder
acceptInboundMessage, channelRead, channelReadComplete

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

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

- Constructor Detail
  - DatagramDnsResponseDecoder
```
public DatagramDnsResponseDecoder()
```
    Creates a new decoder with the default record decoder.
  - DatagramDnsResponseDecoder
```
public DatagramDnsResponseDecoder(DnsRecordDecoder recordDecoder)
```
    Creates a new decoder with the specified recordDecoder.
- Method Detail
  - decode
```
protected void decode(ChannelHandlerContext ctx,
                      DatagramPacket packet,
                      java.util.List<java.lang.Object> out)
               throws java.lang.Exception
```
    Description copied from class: MessageToMessageDecoder
    
    Decode from one message to an other. This method will be called for each written message that can be handled by this decoder.
    
    Specified by:
    
    decode in class MessageToMessageDecoder<DatagramPacket>
    
    Parameters:
    
    ctx - the ChannelHandlerContext which this MessageToMessageDecoder belongs to
    
    packet - the message to decode to an other one
    
    out - the List to which decoded messages should be added
    
    Throws:
    
    java.lang.Exception - is thrown if an error occurs
  - decodeResponse
```
protected DnsResponse decodeResponse(ChannelHandlerContext ctx,
                                     DatagramPacket packet)
                              throws java.lang.Exception
```
    Throws:
    
    java.lang.Exception