Fix Java generator bug that ignores bidi streaming attribute (#5063)

* Fix Java generator bug that ignores streaming: bidi attribute
Tests

* Java gRPC client streaming test

* Java gRPC Bidi Streaming Test

tests/MyGame/Example/MonsterStorageGrpc.java

@@ -128,6 +128,72 @@ public final class MonsterStorageGrpc {
      return getRetrieveMethod;
   }
   
+  @io.grpc.ExperimentalApi("https://github.com/grpc/grpc-java/issues/1901")
+  @java.lang.Deprecated // Use {@link #getGetMaxHitPointMethod()} instead. 
+  public static final io.grpc.MethodDescriptor<MyGame.Example.Monster,
+      MyGame.Example.Stat> METHOD_GET_MAX_HIT_POINT = getGetMaxHitPointMethod();
+  
+  private static volatile io.grpc.MethodDescriptor<MyGame.Example.Monster,
+      MyGame.Example.Stat> getGetMaxHitPointMethod;
+  
+  @io.grpc.ExperimentalApi("https://github.com/grpc/grpc-java/issues/1901")
+  public static io.grpc.MethodDescriptor<MyGame.Example.Monster,
+      MyGame.Example.Stat> getGetMaxHitPointMethod() {
+    io.grpc.MethodDescriptor<MyGame.Example.Monster, MyGame.Example.Stat> getGetMaxHitPointMethod;
+    if ((getGetMaxHitPointMethod = MonsterStorageGrpc.getGetMaxHitPointMethod) == null) {
+      synchronized (MonsterStorageGrpc.class) {
+        if ((getGetMaxHitPointMethod = MonsterStorageGrpc.getGetMaxHitPointMethod) == null) {
+          MonsterStorageGrpc.getGetMaxHitPointMethod = getGetMaxHitPointMethod = 
+              io.grpc.MethodDescriptor.<MyGame.Example.Monster, MyGame.Example.Stat>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.CLIENT_STREAMING)
+              .setFullMethodName(generateFullMethodName(
+                  "MyGame.Example.MonsterStorage", "GetMaxHitPoint"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(FlatbuffersUtils.marshaller(
+                  MyGame.Example.Monster.class, getExtractorOfMonster()))
+              .setResponseMarshaller(FlatbuffersUtils.marshaller(
+                  MyGame.Example.Stat.class, getExtractorOfStat()))
+                  .setSchemaDescriptor(null)
+                  .build();
+          }
+        }
+     }
+     return getGetMaxHitPointMethod;
+  }
+  
+  @io.grpc.ExperimentalApi("https://github.com/grpc/grpc-java/issues/1901")
+  @java.lang.Deprecated // Use {@link #getGetMinMaxHitPointsMethod()} instead. 
+  public static final io.grpc.MethodDescriptor<MyGame.Example.Monster,
+      MyGame.Example.Stat> METHOD_GET_MIN_MAX_HIT_POINTS = getGetMinMaxHitPointsMethod();
+  
+  private static volatile io.grpc.MethodDescriptor<MyGame.Example.Monster,
+      MyGame.Example.Stat> getGetMinMaxHitPointsMethod;
+  
+  @io.grpc.ExperimentalApi("https://github.com/grpc/grpc-java/issues/1901")
+  public static io.grpc.MethodDescriptor<MyGame.Example.Monster,
+      MyGame.Example.Stat> getGetMinMaxHitPointsMethod() {
+    io.grpc.MethodDescriptor<MyGame.Example.Monster, MyGame.Example.Stat> getGetMinMaxHitPointsMethod;
+    if ((getGetMinMaxHitPointsMethod = MonsterStorageGrpc.getGetMinMaxHitPointsMethod) == null) {
+      synchronized (MonsterStorageGrpc.class) {
+        if ((getGetMinMaxHitPointsMethod = MonsterStorageGrpc.getGetMinMaxHitPointsMethod) == null) {
+          MonsterStorageGrpc.getGetMinMaxHitPointsMethod = getGetMinMaxHitPointsMethod = 
+              io.grpc.MethodDescriptor.<MyGame.Example.Monster, MyGame.Example.Stat>newBuilder()
+              .setType(io.grpc.MethodDescriptor.MethodType.BIDI_STREAMING)
+              .setFullMethodName(generateFullMethodName(
+                  "MyGame.Example.MonsterStorage", "GetMinMaxHitPoints"))
+              .setSampledToLocalTracing(true)
+              .setRequestMarshaller(FlatbuffersUtils.marshaller(
+                  MyGame.Example.Monster.class, getExtractorOfMonster()))
+              .setResponseMarshaller(FlatbuffersUtils.marshaller(
+                  MyGame.Example.Stat.class, getExtractorOfStat()))
+                  .setSchemaDescriptor(null)
+                  .build();
+          }
+        }
+     }
+     return getGetMinMaxHitPointsMethod;
+  }
+  
   /**
    * Creates a new async stub that supports all call types for the service
    */
@@ -169,6 +235,20 @@ public final class MonsterStorageGrpc {
       asyncUnimplementedUnaryCall(getRetrieveMethod(), responseObserver);
     }
     
+    /**
+     */
+    public     io.grpc.stub.StreamObserver<MyGame.Example.Monster> getMaxHitPoint(
+        io.grpc.stub.StreamObserver<MyGame.Example.Stat> responseObserver)     {
+      return asyncUnimplementedStreamingCall(getGetMaxHitPointMethod(), responseObserver);
+    }
+    
+    /**
+     */
+    public     io.grpc.stub.StreamObserver<MyGame.Example.Monster> getMinMaxHitPoints(
+        io.grpc.stub.StreamObserver<MyGame.Example.Stat> responseObserver)     {
+      return asyncUnimplementedStreamingCall(getGetMinMaxHitPointsMethod(), responseObserver);
+    }
+    
     @java.lang.Override public final io.grpc.ServerServiceDefinition bindService() {
       return io.grpc.ServerServiceDefinition.builder(getServiceDescriptor())
           .addMethod(
@@ -185,6 +265,20 @@ public final class MonsterStorageGrpc {
                 MyGame.Example.Stat,
                 MyGame.Example.Monster>(
                   this, METHODID_RETRIEVE)))
+          .addMethod(
+            getGetMaxHitPointMethod(),
+            asyncClientStreamingCall(
+              new MethodHandlers<
+                MyGame.Example.Monster,
+                MyGame.Example.Stat>(
+                  this, METHODID_GET_MAX_HIT_POINT)))
+          .addMethod(
+            getGetMinMaxHitPointsMethod(),
+            asyncBidiStreamingCall(
+              new MethodHandlers<
+                MyGame.Example.Monster,
+                MyGame.Example.Stat>(
+                  this, METHODID_GET_MIN_MAX_HIT_POINTS)))
           .build();
     }
   }
@@ -222,6 +316,22 @@ public final class MonsterStorageGrpc {
       asyncServerStreamingCall(
           getChannel().newCall(getRetrieveMethod(), getCallOptions()), request, responseObserver);
     }
+    
+    /**
+     */
+    public     io.grpc.stub.StreamObserver<MyGame.Example.Monster> getMaxHitPoint(
+        io.grpc.stub.StreamObserver<MyGame.Example.Stat> responseObserver)     {
+      return asyncClientStreamingCall(
+          getChannel().newCall(getGetMaxHitPointMethod(), getCallOptions()), responseObserver);
+    }
+    
+    /**
+     */
+    public     io.grpc.stub.StreamObserver<MyGame.Example.Monster> getMinMaxHitPoints(
+        io.grpc.stub.StreamObserver<MyGame.Example.Stat> responseObserver)     {
+      return asyncBidiStreamingCall(
+          getChannel().newCall(getGetMinMaxHitPointsMethod(), getCallOptions()), responseObserver);
+    }
   }
   
   /**
@@ -287,6 +397,8 @@ public final class MonsterStorageGrpc {
   
   private static final int METHODID_STORE = 0;
   private static final int METHODID_RETRIEVE = 1;
+  private static final int METHODID_GET_MIN_MAX_HIT_POINTS = 2;
+  private static final int METHODID_GET_MAX_HIT_POINT = 3;
   
   private static final class MethodHandlers<Req, Resp> implements
       io.grpc.stub.ServerCalls.UnaryMethod<Req, Resp>,
@@ -323,6 +435,12 @@ public final class MonsterStorageGrpc {
     public io.grpc.stub.StreamObserver<Req> invoke(
         io.grpc.stub.StreamObserver<Resp> responseObserver) {
       switch (methodId) {
+        case METHODID_GET_MAX_HIT_POINT:
+          return (io.grpc.stub.StreamObserver<Req>) serviceImpl.getMaxHitPoint(
+              (io.grpc.stub.StreamObserver<MyGame.Example.Stat>) responseObserver);
+        case METHODID_GET_MIN_MAX_HIT_POINTS:
+          return (io.grpc.stub.StreamObserver<Req>) serviceImpl.getMinMaxHitPoints(
+              (io.grpc.stub.StreamObserver<MyGame.Example.Stat>) responseObserver);
         default:
           throw new AssertionError();
       }
@@ -341,6 +459,8 @@ public final class MonsterStorageGrpc {
               .setSchemaDescriptor(null)              
               .addMethod(getStoreMethod())              
               .addMethod(getRetrieveMethod())              
+              .addMethod(getGetMaxHitPointMethod())              
+              .addMethod(getGetMinMaxHitPointsMethod())              
               .build();
         }
       }

tests/MyGame/Example/MonsterStorage_grpc.go

@@ -17,6 +17,10 @@ type MonsterStorageClient interface{
   	opts... grpc.CallOption) (* Stat, error)  
   Retrieve(ctx context.Context, in *flatbuffers.Builder, 
   	opts... grpc.CallOption) (MonsterStorage_RetrieveClient, error)  
+  GetMaxHitPoint(ctx context.Context, 
+  	opts... grpc.CallOption) (MonsterStorage_GetMaxHitPointClient, error)  
+  GetMinMaxHitPoints(ctx context.Context, 
+  	opts... grpc.CallOption) (MonsterStorage_GetMinMaxHitPointsClient, error)  
 }
 
 type monsterStorageClient struct {
@@ -60,10 +64,69 @@ func (x *monsterStorageRetrieveClient) Recv() (*Monster, error) {
   return m, nil
 }
 
+func (c *monsterStorageClient) GetMaxHitPoint(ctx context.Context, 
+	opts... grpc.CallOption) (MonsterStorage_GetMaxHitPointClient, error) {
+  stream, err := grpc.NewClientStream(ctx, &_MonsterStorage_serviceDesc.Streams[1], c.cc, "/MyGame.Example.MonsterStorage/GetMaxHitPoint", opts...)
+  if err != nil { return nil, err }
+  x := &monsterStorageGetMaxHitPointClient{stream}
+  return x,nil
+}
+
+type MonsterStorage_GetMaxHitPointClient interface {
+  Send(*flatbuffers.Builder) error
+  CloseAndRecv() (*Stat, error)
+  grpc.ClientStream
+}
+
+type monsterStorageGetMaxHitPointClient struct{
+  grpc.ClientStream
+}
+
+func (x *monsterStorageGetMaxHitPointClient) Send(m *flatbuffers.Builder) error {
+  return x.ClientStream.SendMsg(m)
+}
+
+func (x *monsterStorageGetMaxHitPointClient) CloseAndRecv() (*Stat, error) {
+  if err := x.ClientStream.CloseSend(); err != nil { return nil, err }
+  m := new (Stat)
+  if err := x.ClientStream.RecvMsg(m); err != nil { return nil, err }
+  return m, nil
+}
+
+func (c *monsterStorageClient) GetMinMaxHitPoints(ctx context.Context, 
+	opts... grpc.CallOption) (MonsterStorage_GetMinMaxHitPointsClient, error) {
+  stream, err := grpc.NewClientStream(ctx, &_MonsterStorage_serviceDesc.Streams[2], c.cc, "/MyGame.Example.MonsterStorage/GetMinMaxHitPoints", opts...)
+  if err != nil { return nil, err }
+  x := &monsterStorageGetMinMaxHitPointsClient{stream}
+  return x,nil
+}
+
+type MonsterStorage_GetMinMaxHitPointsClient interface {
+  Send(*flatbuffers.Builder) error
+  Recv() (*Stat, error)
+  grpc.ClientStream
+}
+
+type monsterStorageGetMinMaxHitPointsClient struct{
+  grpc.ClientStream
+}
+
+func (x *monsterStorageGetMinMaxHitPointsClient) Send(m *flatbuffers.Builder) error {
+  return x.ClientStream.SendMsg(m)
+}
+
+func (x *monsterStorageGetMinMaxHitPointsClient) Recv() (*Stat, error) {
+  m := new(Stat)
+  if err := x.ClientStream.RecvMsg(m); err != nil { return nil, err }
+  return m, nil
+}
+
 // Server API for MonsterStorage service
 type MonsterStorageServer interface {
   Store(context.Context, *Monster) (*flatbuffers.Builder, error)  
   Retrieve(*Stat, MonsterStorage_RetrieveServer) error  
+  GetMaxHitPoint(MonsterStorage_GetMaxHitPointServer) error  
+  GetMinMaxHitPoints(MonsterStorage_GetMinMaxHitPointsServer) error  
 }
 
 func RegisterMonsterStorageServer(s *grpc.Server, srv MonsterStorageServer) {
@@ -107,6 +170,56 @@ func (x *monsterStorageRetrieveServer) Send(m *flatbuffers.Builder) error {
 }
 
 
+func _MonsterStorage_GetMaxHitPoint_Handler(srv interface{}, stream grpc.ServerStream) error {
+  return srv.(MonsterStorageServer).GetMaxHitPoint(&monsterStorageGetMaxHitPointServer{stream})
+}
+
+type MonsterStorage_GetMaxHitPointServer interface { 
+  Recv() (* Monster, error)
+  SendAndClose(* flatbuffers.Builder) error
+  grpc.ServerStream
+}
+
+type monsterStorageGetMaxHitPointServer struct {
+  grpc.ServerStream
+}
+
+func (x *monsterStorageGetMaxHitPointServer) Recv() (*Monster, error) {
+  m := new(Monster)
+  if err := x.ServerStream.RecvMsg(m); err != nil { return nil, err }
+  return m, nil
+}
+
+func (x *monsterStorageGetMaxHitPointServer) SendAndClose(m *flatbuffers.Builder) error {
+  return x.ServerStream.SendMsg(m)
+}
+
+
+func _MonsterStorage_GetMinMaxHitPoints_Handler(srv interface{}, stream grpc.ServerStream) error {
+  return srv.(MonsterStorageServer).GetMinMaxHitPoints(&monsterStorageGetMinMaxHitPointsServer{stream})
+}
+
+type MonsterStorage_GetMinMaxHitPointsServer interface { 
+  Send(* flatbuffers.Builder) error
+  Recv() (* Monster, error)
+  grpc.ServerStream
+}
+
+type monsterStorageGetMinMaxHitPointsServer struct {
+  grpc.ServerStream
+}
+
+func (x *monsterStorageGetMinMaxHitPointsServer) Send(m *flatbuffers.Builder) error {
+  return x.ServerStream.SendMsg(m)
+}
+
+func (x *monsterStorageGetMinMaxHitPointsServer) Recv() (*Monster, error) {
+  m := new(Monster)
+  if err := x.ServerStream.RecvMsg(m); err != nil { return nil, err }
+  return m, nil
+}
+
+
 var _MonsterStorage_serviceDesc = grpc.ServiceDesc{
   ServiceName: "MyGame.Example.MonsterStorage",
   HandlerType: (*MonsterStorageServer)(nil),
@@ -122,6 +235,17 @@ var _MonsterStorage_serviceDesc = grpc.ServiceDesc{
       Handler: _MonsterStorage_Retrieve_Handler, 
       ServerStreams: true,
     },
+    {
+      StreamName: "GetMaxHitPoint",
+      Handler: _MonsterStorage_GetMaxHitPoint_Handler, 
+      ClientStreams: true,
+    },
+    {
+      StreamName: "GetMinMaxHitPoints",
+      Handler: _MonsterStorage_GetMinMaxHitPoints_Handler, 
+      ServerStreams: true,
+      ClientStreams: true,
+    },
   },
 }
 

tests/monster_test.fbs

@@ -120,6 +120,8 @@ table TypeAliases {
 rpc_service MonsterStorage {
   Store(Monster):Stat (streaming: "none");
   Retrieve(Stat):Monster (streaming: "server", idempotent);
+  GetMaxHitPoint(Monster):Stat (streaming: "client");
+  GetMinMaxHitPoints(Monster):Stat (streaming: "bidi");
 }
 
 root_type Monster;

tests/monster_test.grpc.fb.cc

@@ -19,6 +19,8 @@ namespace Example {
 static const char* MonsterStorage_method_names[] = {
   "/MyGame.Example.MonsterStorage/Store",
   "/MyGame.Example.MonsterStorage/Retrieve",
+  "/MyGame.Example.MonsterStorage/GetMaxHitPoint",
+  "/MyGame.Example.MonsterStorage/GetMinMaxHitPoints",
 };
 
 std::unique_ptr< MonsterStorage::Stub> MonsterStorage::NewStub(const std::shared_ptr< ::grpc::ChannelInterface>& channel, const ::grpc::StubOptions& options) {
@@ -29,6 +31,8 @@ std::unique_ptr< MonsterStorage::Stub> MonsterStorage::NewStub(const std::shared
 MonsterStorage::Stub::Stub(const std::shared_ptr< ::grpc::ChannelInterface>& channel)
   : channel_(channel)  , rpcmethod_Store_(MonsterStorage_method_names[0], ::grpc::internal::RpcMethod::NORMAL_RPC, channel)
   , rpcmethod_Retrieve_(MonsterStorage_method_names[1], ::grpc::internal::RpcMethod::SERVER_STREAMING, channel)
+  , rpcmethod_GetMaxHitPoint_(MonsterStorage_method_names[2], ::grpc::internal::RpcMethod::CLIENT_STREAMING, channel)
+  , rpcmethod_GetMinMaxHitPoints_(MonsterStorage_method_names[3], ::grpc::internal::RpcMethod::BIDI_STREAMING, channel)
   {}
   
 ::grpc::Status MonsterStorage::Stub::Store(::grpc::ClientContext* context, const flatbuffers::grpc::Message<Monster>& request, flatbuffers::grpc::Message<Stat>* response) {
@@ -55,6 +59,30 @@ MonsterStorage::Stub::Stub(const std::shared_ptr< ::grpc::ChannelInterface>& cha
   return ::grpc::internal::ClientAsyncReaderFactory< flatbuffers::grpc::Message<Monster>>::Create(channel_.get(), cq, rpcmethod_Retrieve_, context, request, false, nullptr);
 }
 
+::grpc::ClientWriter< flatbuffers::grpc::Message<Monster>>* MonsterStorage::Stub::GetMaxHitPointRaw(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response) {
+  return ::grpc::internal::ClientWriterFactory< flatbuffers::grpc::Message<Monster>>::Create(channel_.get(), rpcmethod_GetMaxHitPoint_, context, response);
+}
+
+::grpc::ClientAsyncWriter< flatbuffers::grpc::Message<Monster>>* MonsterStorage::Stub::AsyncGetMaxHitPointRaw(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response, ::grpc::CompletionQueue* cq, void* tag) {
+  return ::grpc::internal::ClientAsyncWriterFactory< flatbuffers::grpc::Message<Monster>>::Create(channel_.get(), cq, rpcmethod_GetMaxHitPoint_, context, response, true, tag);
+}
+
+::grpc::ClientAsyncWriter< flatbuffers::grpc::Message<Monster>>* MonsterStorage::Stub::PrepareAsyncGetMaxHitPointRaw(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response, ::grpc::CompletionQueue* cq) {
+  return ::grpc::internal::ClientAsyncWriterFactory< flatbuffers::grpc::Message<Monster>>::Create(channel_.get(), cq, rpcmethod_GetMaxHitPoint_, context, response, false, nullptr);
+}
+
+::grpc::ClientReaderWriter< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>* MonsterStorage::Stub::GetMinMaxHitPointsRaw(::grpc::ClientContext* context) {
+  return ::grpc::internal::ClientReaderWriterFactory< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>::Create(channel_.get(), rpcmethod_GetMinMaxHitPoints_, context);
+}
+
+::grpc::ClientAsyncReaderWriter< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>* MonsterStorage::Stub::AsyncGetMinMaxHitPointsRaw(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, void* tag) {
+  return ::grpc::internal::ClientAsyncReaderWriterFactory< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>::Create(channel_.get(), cq, rpcmethod_GetMinMaxHitPoints_, context, true, tag);
+}
+
+::grpc::ClientAsyncReaderWriter< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>* MonsterStorage::Stub::PrepareAsyncGetMinMaxHitPointsRaw(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq) {
+  return ::grpc::internal::ClientAsyncReaderWriterFactory< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>::Create(channel_.get(), cq, rpcmethod_GetMinMaxHitPoints_, context, false, nullptr);
+}
+
 MonsterStorage::Service::Service() {
   AddMethod(new ::grpc::internal::RpcServiceMethod(
       MonsterStorage_method_names[0],
@@ -66,6 +94,16 @@ MonsterStorage::Service::Service() {
       ::grpc::internal::RpcMethod::SERVER_STREAMING,
       new ::grpc::internal::ServerStreamingHandler< MonsterStorage::Service, flatbuffers::grpc::Message<Stat>, flatbuffers::grpc::Message<Monster>>(
           std::mem_fn(&MonsterStorage::Service::Retrieve), this)));
+  AddMethod(new ::grpc::internal::RpcServiceMethod(
+      MonsterStorage_method_names[2],
+      ::grpc::internal::RpcMethod::CLIENT_STREAMING,
+      new ::grpc::internal::ClientStreamingHandler< MonsterStorage::Service, flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>(
+          std::mem_fn(&MonsterStorage::Service::GetMaxHitPoint), this)));
+  AddMethod(new ::grpc::internal::RpcServiceMethod(
+      MonsterStorage_method_names[3],
+      ::grpc::internal::RpcMethod::BIDI_STREAMING,
+      new ::grpc::internal::BidiStreamingHandler< MonsterStorage::Service, flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>(
+          std::mem_fn(&MonsterStorage::Service::GetMinMaxHitPoints), this)));
 }
 
 MonsterStorage::Service::~Service() {
@@ -85,6 +123,19 @@ MonsterStorage::Service::~Service() {
   return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, "");
 }
 
+::grpc::Status MonsterStorage::Service::GetMaxHitPoint(::grpc::ServerContext* context, ::grpc::ServerReader< flatbuffers::grpc::Message<Monster>>* reader, flatbuffers::grpc::Message<Stat>* response) {
+  (void) context;
+  (void) reader;
+  (void) response;
+  return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, "");
+}
+
+::grpc::Status MonsterStorage::Service::GetMinMaxHitPoints(::grpc::ServerContext* context, ::grpc::ServerReaderWriter< flatbuffers::grpc::Message<Stat>, flatbuffers::grpc::Message<Monster>>* stream) {
+  (void) context;
+  (void) stream;
+  return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, "");
+}
+
 
 }  // namespace MyGame
 }  // namespace Example

tests/monster_test.grpc.fb.h

@@ -51,12 +51,36 @@ class MonsterStorage final {
     std::unique_ptr< ::grpc::ClientAsyncReaderInterface< flatbuffers::grpc::Message<Monster>>> PrepareAsyncRetrieve(::grpc::ClientContext* context, const flatbuffers::grpc::Message<Stat>& request, ::grpc::CompletionQueue* cq) {
       return std::unique_ptr< ::grpc::ClientAsyncReaderInterface< flatbuffers::grpc::Message<Monster>>>(PrepareAsyncRetrieveRaw(context, request, cq));
     }
+    std::unique_ptr< ::grpc::ClientWriterInterface< flatbuffers::grpc::Message<Monster>>> GetMaxHitPoint(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response) {
+      return std::unique_ptr< ::grpc::ClientWriterInterface< flatbuffers::grpc::Message<Monster>>>(GetMaxHitPointRaw(context, response));
+    }
+    std::unique_ptr< ::grpc::ClientAsyncWriterInterface< flatbuffers::grpc::Message<Monster>>> AsyncGetMaxHitPoint(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response, ::grpc::CompletionQueue* cq, void* tag) {
+      return std::unique_ptr< ::grpc::ClientAsyncWriterInterface< flatbuffers::grpc::Message<Monster>>>(AsyncGetMaxHitPointRaw(context, response, cq, tag));
+    }
+    std::unique_ptr< ::grpc::ClientAsyncWriterInterface< flatbuffers::grpc::Message<Monster>>> PrepareAsyncGetMaxHitPoint(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response, ::grpc::CompletionQueue* cq) {
+      return std::unique_ptr< ::grpc::ClientAsyncWriterInterface< flatbuffers::grpc::Message<Monster>>>(PrepareAsyncGetMaxHitPointRaw(context, response, cq));
+    }
+    std::unique_ptr< ::grpc::ClientReaderWriterInterface< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>> GetMinMaxHitPoints(::grpc::ClientContext* context) {
+      return std::unique_ptr< ::grpc::ClientReaderWriterInterface< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>>(GetMinMaxHitPointsRaw(context));
+    }
+    std::unique_ptr< ::grpc::ClientAsyncReaderWriterInterface< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>> AsyncGetMinMaxHitPoints(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, void* tag) {
+      return std::unique_ptr< ::grpc::ClientAsyncReaderWriterInterface< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>>(AsyncGetMinMaxHitPointsRaw(context, cq, tag));
+    }
+    std::unique_ptr< ::grpc::ClientAsyncReaderWriterInterface< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>> PrepareAsyncGetMinMaxHitPoints(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq) {
+      return std::unique_ptr< ::grpc::ClientAsyncReaderWriterInterface< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>>(PrepareAsyncGetMinMaxHitPointsRaw(context, cq));
+    }
   private:
     virtual ::grpc::ClientAsyncResponseReaderInterface< flatbuffers::grpc::Message<Stat>>* AsyncStoreRaw(::grpc::ClientContext* context, const flatbuffers::grpc::Message<Monster>& request, ::grpc::CompletionQueue* cq) = 0;
     virtual ::grpc::ClientAsyncResponseReaderInterface< flatbuffers::grpc::Message<Stat>>* PrepareAsyncStoreRaw(::grpc::ClientContext* context, const flatbuffers::grpc::Message<Monster>& request, ::grpc::CompletionQueue* cq) = 0;
     virtual ::grpc::ClientReaderInterface< flatbuffers::grpc::Message<Monster>>* RetrieveRaw(::grpc::ClientContext* context, const flatbuffers::grpc::Message<Stat>& request) = 0;
     virtual ::grpc::ClientAsyncReaderInterface< flatbuffers::grpc::Message<Monster>>* AsyncRetrieveRaw(::grpc::ClientContext* context, const flatbuffers::grpc::Message<Stat>& request, ::grpc::CompletionQueue* cq, void* tag) = 0;
     virtual ::grpc::ClientAsyncReaderInterface< flatbuffers::grpc::Message<Monster>>* PrepareAsyncRetrieveRaw(::grpc::ClientContext* context, const flatbuffers::grpc::Message<Stat>& request, ::grpc::CompletionQueue* cq) = 0;
+    virtual ::grpc::ClientWriterInterface< flatbuffers::grpc::Message<Monster>>* GetMaxHitPointRaw(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response) = 0;
+    virtual ::grpc::ClientAsyncWriterInterface< flatbuffers::grpc::Message<Monster>>* AsyncGetMaxHitPointRaw(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response, ::grpc::CompletionQueue* cq, void* tag) = 0;
+    virtual ::grpc::ClientAsyncWriterInterface< flatbuffers::grpc::Message<Monster>>* PrepareAsyncGetMaxHitPointRaw(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response, ::grpc::CompletionQueue* cq) = 0;
+    virtual ::grpc::ClientReaderWriterInterface< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>* GetMinMaxHitPointsRaw(::grpc::ClientContext* context) = 0;
+    virtual ::grpc::ClientAsyncReaderWriterInterface< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>* AsyncGetMinMaxHitPointsRaw(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, void* tag) = 0;
+    virtual ::grpc::ClientAsyncReaderWriterInterface< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>* PrepareAsyncGetMinMaxHitPointsRaw(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq) = 0;
   };
   class Stub final : public StubInterface {
    public:
@@ -77,6 +101,24 @@ class MonsterStorage final {
     std::unique_ptr< ::grpc::ClientAsyncReader< flatbuffers::grpc::Message<Monster>>> PrepareAsyncRetrieve(::grpc::ClientContext* context, const flatbuffers::grpc::Message<Stat>& request, ::grpc::CompletionQueue* cq) {
       return std::unique_ptr< ::grpc::ClientAsyncReader< flatbuffers::grpc::Message<Monster>>>(PrepareAsyncRetrieveRaw(context, request, cq));
     }
+    std::unique_ptr< ::grpc::ClientWriter< flatbuffers::grpc::Message<Monster>>> GetMaxHitPoint(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response) {
+      return std::unique_ptr< ::grpc::ClientWriter< flatbuffers::grpc::Message<Monster>>>(GetMaxHitPointRaw(context, response));
+    }
+    std::unique_ptr< ::grpc::ClientAsyncWriter< flatbuffers::grpc::Message<Monster>>> AsyncGetMaxHitPoint(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response, ::grpc::CompletionQueue* cq, void* tag) {
+      return std::unique_ptr< ::grpc::ClientAsyncWriter< flatbuffers::grpc::Message<Monster>>>(AsyncGetMaxHitPointRaw(context, response, cq, tag));
+    }
+    std::unique_ptr< ::grpc::ClientAsyncWriter< flatbuffers::grpc::Message<Monster>>> PrepareAsyncGetMaxHitPoint(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response, ::grpc::CompletionQueue* cq) {
+      return std::unique_ptr< ::grpc::ClientAsyncWriter< flatbuffers::grpc::Message<Monster>>>(PrepareAsyncGetMaxHitPointRaw(context, response, cq));
+    }
+    std::unique_ptr< ::grpc::ClientReaderWriter< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>> GetMinMaxHitPoints(::grpc::ClientContext* context) {
+      return std::unique_ptr< ::grpc::ClientReaderWriter< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>>(GetMinMaxHitPointsRaw(context));
+    }
+    std::unique_ptr<  ::grpc::ClientAsyncReaderWriter< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>> AsyncGetMinMaxHitPoints(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, void* tag) {
+      return std::unique_ptr< ::grpc::ClientAsyncReaderWriter< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>>(AsyncGetMinMaxHitPointsRaw(context, cq, tag));
+    }
+    std::unique_ptr<  ::grpc::ClientAsyncReaderWriter< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>> PrepareAsyncGetMinMaxHitPoints(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq) {
+      return std::unique_ptr< ::grpc::ClientAsyncReaderWriter< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>>(PrepareAsyncGetMinMaxHitPointsRaw(context, cq));
+    }
   
    private:
     std::shared_ptr< ::grpc::ChannelInterface> channel_;
@@ -85,8 +127,16 @@ class MonsterStorage final {
     ::grpc::ClientReader< flatbuffers::grpc::Message<Monster>>* RetrieveRaw(::grpc::ClientContext* context, const flatbuffers::grpc::Message<Stat>& request) override;
     ::grpc::ClientAsyncReader< flatbuffers::grpc::Message<Monster>>* AsyncRetrieveRaw(::grpc::ClientContext* context, const flatbuffers::grpc::Message<Stat>& request, ::grpc::CompletionQueue* cq, void* tag) override;
     ::grpc::ClientAsyncReader< flatbuffers::grpc::Message<Monster>>* PrepareAsyncRetrieveRaw(::grpc::ClientContext* context, const flatbuffers::grpc::Message<Stat>& request, ::grpc::CompletionQueue* cq) override;
+    ::grpc::ClientWriter< flatbuffers::grpc::Message<Monster>>* GetMaxHitPointRaw(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response) override;
+    ::grpc::ClientAsyncWriter< flatbuffers::grpc::Message<Monster>>* AsyncGetMaxHitPointRaw(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response, ::grpc::CompletionQueue* cq, void* tag) override;
+    ::grpc::ClientAsyncWriter< flatbuffers::grpc::Message<Monster>>* PrepareAsyncGetMaxHitPointRaw(::grpc::ClientContext* context, flatbuffers::grpc::Message<Stat>* response, ::grpc::CompletionQueue* cq) override;
+    ::grpc::ClientReaderWriter< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>* GetMinMaxHitPointsRaw(::grpc::ClientContext* context) override;
+    ::grpc::ClientAsyncReaderWriter< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>* AsyncGetMinMaxHitPointsRaw(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq, void* tag) override;
+    ::grpc::ClientAsyncReaderWriter< flatbuffers::grpc::Message<Monster>, flatbuffers::grpc::Message<Stat>>* PrepareAsyncGetMinMaxHitPointsRaw(::grpc::ClientContext* context, ::grpc::CompletionQueue* cq) override;
     const ::grpc::internal::RpcMethod rpcmethod_Store_;
     const ::grpc::internal::RpcMethod rpcmethod_Retrieve_;
+    const ::grpc::internal::RpcMethod rpcmethod_GetMaxHitPoint_;
+    const ::grpc::internal::RpcMethod rpcmethod_GetMinMaxHitPoints_;
   };
   static std::unique_ptr<Stub> NewStub(const std::shared_ptr< ::grpc::ChannelInterface>& channel, const ::grpc::StubOptions& options = ::grpc::StubOptions());
   
@@ -96,6 +146,8 @@ class MonsterStorage final {
     virtual ~Service();
     virtual ::grpc::Status Store(::grpc::ServerContext* context, const flatbuffers::grpc::Message<Monster>* request, flatbuffers::grpc::Message<Stat>* response);
     virtual ::grpc::Status Retrieve(::grpc::ServerContext* context, const flatbuffers::grpc::Message<Stat>* request, ::grpc::ServerWriter< flatbuffers::grpc::Message<Monster>>* writer);
+    virtual ::grpc::Status GetMaxHitPoint(::grpc::ServerContext* context, ::grpc::ServerReader< flatbuffers::grpc::Message<Monster>>* reader, flatbuffers::grpc::Message<Stat>* response);
+    virtual ::grpc::Status GetMinMaxHitPoints(::grpc::ServerContext* context, ::grpc::ServerReaderWriter< flatbuffers::grpc::Message<Stat>, flatbuffers::grpc::Message<Monster>>* stream);
   };
   template <class BaseClass>
   class WithAsyncMethod_Store : public BaseClass {
@@ -137,7 +189,47 @@ class MonsterStorage final {
       ::grpc::Service::RequestAsyncServerStreaming(1, context, request, writer, new_call_cq, notification_cq, tag);
     }
   };
-  typedef   WithAsyncMethod_Store<  WithAsyncMethod_Retrieve<  Service   >   >   AsyncService;
+  template <class BaseClass>
+  class WithAsyncMethod_GetMaxHitPoint : public BaseClass {
+   private:
+    void BaseClassMustBeDerivedFromService(const Service *service) {}
+   public:
+    WithAsyncMethod_GetMaxHitPoint() {
+      ::grpc::Service::MarkMethodAsync(2);
+    }
+    ~WithAsyncMethod_GetMaxHitPoint() override {
+      BaseClassMustBeDerivedFromService(this);
+    }
+    // disable synchronous version of this method
+    ::grpc::Status GetMaxHitPoint(::grpc::ServerContext* context, ::grpc::ServerReader< flatbuffers::grpc::Message<Monster>>* reader, flatbuffers::grpc::Message<Stat>* response) final override {
+      abort();
+      return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, "");
+    }
+    void RequestGetMaxHitPoint(::grpc::ServerContext* context, ::grpc::ServerAsyncReader< flatbuffers::grpc::Message<Stat>, flatbuffers::grpc::Message<Monster>>* reader, ::grpc::CompletionQueue* new_call_cq, ::grpc::ServerCompletionQueue* notification_cq, void *tag) {
+      ::grpc::Service::RequestAsyncClientStreaming(2, context, reader, new_call_cq, notification_cq, tag);
+    }
+  };
+  template <class BaseClass>
+  class WithAsyncMethod_GetMinMaxHitPoints : public BaseClass {
+   private:
+    void BaseClassMustBeDerivedFromService(const Service *service) {}
+   public:
+    WithAsyncMethod_GetMinMaxHitPoints() {
+      ::grpc::Service::MarkMethodAsync(3);
+    }
+    ~WithAsyncMethod_GetMinMaxHitPoints() override {
+      BaseClassMustBeDerivedFromService(this);
+    }
+    // disable synchronous version of this method
+    ::grpc::Status GetMinMaxHitPoints(::grpc::ServerContext* context, ::grpc::ServerReaderWriter< flatbuffers::grpc::Message<Stat>, flatbuffers::grpc::Message<Monster>>* stream) final override {
+      abort();
+      return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, "");
+    }
+    void RequestGetMinMaxHitPoints(::grpc::ServerContext* context, ::grpc::ServerAsyncReaderWriter< flatbuffers::grpc::Message<Stat>, flatbuffers::grpc::Message<Monster>>* stream, ::grpc::CompletionQueue* new_call_cq, ::grpc::ServerCompletionQueue* notification_cq, void *tag) {
+      ::grpc::Service::RequestAsyncBidiStreaming(3, context, stream, new_call_cq, notification_cq, tag);
+    }
+  };
+  typedef   WithAsyncMethod_Store<  WithAsyncMethod_Retrieve<  WithAsyncMethod_GetMaxHitPoint<  WithAsyncMethod_GetMinMaxHitPoints<  Service   >   >   >   >   AsyncService;
   template <class BaseClass>
   class WithGenericMethod_Store : public BaseClass {
    private:
@@ -173,6 +265,40 @@ class MonsterStorage final {
     }
   };
   template <class BaseClass>
+  class WithGenericMethod_GetMaxHitPoint : public BaseClass {
+   private:
+    void BaseClassMustBeDerivedFromService(const Service *service) {}
+   public:
+    WithGenericMethod_GetMaxHitPoint() {
+      ::grpc::Service::MarkMethodGeneric(2);
+    }
+    ~WithGenericMethod_GetMaxHitPoint() override {
+      BaseClassMustBeDerivedFromService(this);
+    }
+    // disable synchronous version of this method
+    ::grpc::Status GetMaxHitPoint(::grpc::ServerContext* context, ::grpc::ServerReader< flatbuffers::grpc::Message<Monster>>* reader, flatbuffers::grpc::Message<Stat>* response) final override {
+      abort();
+      return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, "");
+    }
+  };
+  template <class BaseClass>
+  class WithGenericMethod_GetMinMaxHitPoints : public BaseClass {
+   private:
+    void BaseClassMustBeDerivedFromService(const Service *service) {}
+   public:
+    WithGenericMethod_GetMinMaxHitPoints() {
+      ::grpc::Service::MarkMethodGeneric(3);
+    }
+    ~WithGenericMethod_GetMinMaxHitPoints() override {
+      BaseClassMustBeDerivedFromService(this);
+    }
+    // disable synchronous version of this method
+    ::grpc::Status GetMinMaxHitPoints(::grpc::ServerContext* context, ::grpc::ServerReaderWriter< flatbuffers::grpc::Message<Stat>, flatbuffers::grpc::Message<Monster>>* stream) final override {
+      abort();
+      return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, "");
+    }
+  };
+  template <class BaseClass>
   class WithStreamedUnaryMethod_Store : public BaseClass {
    private:
     void BaseClassMustBeDerivedFromService(const Service *service) {}