1 files changed, 31 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/serialization/BaseCodec.java b/src/main/java/com/google/devtools/build/lib/skyframe/serialization/BaseCodec.java
new file mode 100644
index 0000000000..dd286fc7eb
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/serialization/BaseCodec.java
@@ -0,0 +1,31 @@
+// Copyright 2017 The Bazel Authors. All rights reserved.
+//
+// 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 com.google.devtools.build.lib.skyframe.serialization;
+
+import com.google.devtools.build.skyframe.SkyKey;
+import com.google.devtools.build.skyframe.SkyValue;
+
+/** An opaque interface for codecs that just reveals the {@link Class} of its objects. */
+interface BaseCodec<T> {
+  /**
+   * Returns the class of the objects serialized/deserialized by this codec.
+   *
+   * <p>This is useful for automatically dispatching to the correct codec, e.g. in {@link
+   * ObjectCodecs} and {@link BaseCodecMap}. It may also be useful for automatically registering
+   * codecs for {@link SkyKey}s and {@link SkyValue}s instead of using the current manual mapping
+   * (b/26186886).
+   */
+  Class<T> getEncodedClass();
+}