1 files changed, 36 insertions, 0 deletions
diff --git a/api/src/main/java/io/opencensus/tags/propagation/TagPropagationComponent.java b/api/src/main/java/io/opencensus/tags/propagation/TagPropagationComponent.java
new file mode 100644
index 00000000..6ececa79
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+++ b/api/src/main/java/io/opencensus/tags/propagation/TagPropagationComponent.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2017, OpenCensus 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.opencensus.tags.propagation;
+
+import io.opencensus.tags.TagContext;
+
+/**
+ * Object containing all supported {@link TagContext} propagation formats.
+ *
+ * @since 0.8
+ */
+// TODO(sebright): Add an HTTP serializer.
+public abstract class TagPropagationComponent {
+
+  /**
+   * Returns the {@link TagContextBinarySerializer} for this implementation.
+   *
+   * @return the {@code TagContextBinarySerializer} for this implementation.
+   * @since 0.8
+   */
+  public abstract TagContextBinarySerializer getBinarySerializer();
+}