Interface ProtoCodec<T>

public interface ProtoCodec<T>

Per-class encoder / decoder for a @ProtoMessage type. The Codename One Maven plugin emits one <Type>ProtoCodec per @ProtoMessage class at build time and registers it with ProtoCodecs so gRPC clients can locate codecs for nested message types by class without reflection.

Implementations must be stateless -- the same codec instance is shared across concurrent requests.

  • Method Summary

    Modifier and Type
    Method
    Description
    T
    read(ProtoReader in)
    Reads a message from in and returns the populated instance.
    void
    write(ProtoWriter out, T value)
    Writes value's populated fields to out in the protobuf binary wire format.

  • Method Details

    • write

      void write(ProtoWriter out, T value) throws IOException
      Writes value's populated fields to out in the protobuf binary wire format. Does not write a length prefix; callers that need length-delimited framing (such as nested messages or gRPC payload framing) handle that one layer up.
      Throws:
      IOException

    • read

      T read(ProtoReader in) throws IOException
      Reads a message from in and returns the populated instance. in is expected to be positioned at the start of the message body (no length prefix); callers wrap a slice when reading nested messages.
      Throws:
      IOException