compiler, stub: Add @RpcMethod annotation

This annotation will enable Java APT to generate code.

Addresses part of #3173.

1 files changed, 56 insertions, 0 deletions

diff --git a/stub/src/main/java/io/grpc/stub/annotations/RpcMethod.java b/stub/src/main/java/io/grpc/stub/annotations/RpcMethod.java
new file mode 100644
index 000000000..5d8591f58
--- /dev/null
+++ b/stub/src/main/java/io/grpc/stub/annotations/RpcMethod.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2018 The gRPC Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.grpc.stub.annotations;
+
+import io.grpc.MethodDescriptor.MethodType;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Annotates a method descriptor method to provide metadata for annotation processing.
+ */
+@Retention(RetentionPolicy.CLASS)
+@Target(ElementType.METHOD)
+public @interface RpcMethod {
+
+  /**
+   * The full service name for the method
+   */
+  String fullServiceName();
+
+  /**
+   * The method name for the method
+   */
+  String methodName();
+
+  /**
+   * The input type of the method
+   */
+  Class<?> inputType();
+
+  /**
+   * The output type of the method
+   */
+  Class<?> outputType();
+
+  /**
+   * The call type of the method
+   */
+  MethodType methodType();
+}