@ChannelHandler.Sharable @UnstableApi public final class TcpDnsQueryEncoder extends MessageToByteEncoder<DnsQuery>
ChannelHandler.Sharable| 构造器和说明 |
|---|
TcpDnsQueryEncoder()
Creates a new encoder with the default record encoder.
|
TcpDnsQueryEncoder(DnsRecordEncoder recordEncoder)
Creates a new encoder with the specified
recordEncoder. |
| 限定符和类型 | 方法和说明 |
|---|---|
protected ByteBuf |
allocateBuffer(ChannelHandlerContext ctx,
DnsQuery msg,
boolean preferDirect)
Allocate a
ByteBuf which will be used as argument of #encode(ChannelHandlerContext, I, ByteBuf). |
protected void |
encode(ChannelHandlerContext ctx,
DnsQuery msg,
ByteBuf out)
Encode a message into a
ByteBuf. |
acceptOutboundMessage, isPreferDirect, writebind, close, connect, deregister, disconnect, flush, readensureNotSharable, exceptionCaught, handlerAdded, handlerRemoved, isSharableclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitexceptionCaught, handlerAdded, handlerRemovedpublic TcpDnsQueryEncoder()
public TcpDnsQueryEncoder(DnsRecordEncoder recordEncoder)
recordEncoder.protected void encode(ChannelHandlerContext ctx, DnsQuery msg, ByteBuf out) throws java.lang.Exception
MessageToByteEncoderByteBuf. This method will be called for each written message that can be handled
by this encoder.encode 在类中 MessageToByteEncoder<DnsQuery>ctx - the ChannelHandlerContext which this MessageToByteEncoder belongs tomsg - the message to encodeout - the ByteBuf into which the encoded message will be writtenjava.lang.Exception - is thrown if an error occursprotected ByteBuf allocateBuffer(ChannelHandlerContext ctx, DnsQuery msg, boolean preferDirect)
MessageToByteEncoderByteBuf which will be used as argument of #encode(ChannelHandlerContext, I, ByteBuf).
Sub-classes may override this method to return ByteBuf with a perfect matching initialCapacity.allocateBuffer 在类中 MessageToByteEncoder<DnsQuery>