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While reading the Netty tutorial, I've found a simple description of how to integrate Netty and Google Protocol Buffers . I've started to investigate its example (because there is no more information in the documentation) and written a simple application like the example local time application. But this example is using static initialization in PipeFactory Class, e.g.: import org.jboss.netty.channel.ChannelPipeline; import org.jboss.netty.channel.ChannelPipelineFactory; import org.jboss.netty.handler.codec.protobuf.ProtobufDecoder; import org.jboss.netty.handler.codec.protobuf.ProtobufEncoder; import org.jboss.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder; import org.jboss.netty.handler.codec.protobuf.ProtobufVarint32LengthFieldPrepender; import static org.jboss.netty.channel.Channels.pipeline; /** * @author sergiizagriichuk */ class ProtoCommunicationClientPipeFactory implements ChannelPipelineFactory { public ChannelPipeline getPipeline() throws Exception { ChannelPipeline p = pipeline(); p.addLast("frameDecoder", new ProtobufVarint32FrameDecoder()); p.addLast("protobufDecoder", new ProtobufDecoder(Communication.DataMessage.getDefaultInstance())); p.addLast("frameEncoder", new ProtobufVarint32LengthFieldPrepender()); p.addLast("protobufEncoder", new ProtobufEncoder()); p.addLast("handler", new ProtoCommunicationClientHandler()); return p; } } (Please take a look at line p.addLast("protobufDecoder", new ProtobufDecoder(Communication.DataMessage.getDefaultInstance())); ) and just one factory can be created (as I understand) for ClientBootstrap class, I mean bootstrap.setPipelineFactory() method. So, in this situation I c

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