ONOS-7739 Support for P4Runtime multicast programming
Design doc: https://docs.google.com/document/d/13rkQlwr49M-uxQQEuxCMP7BFEPY2gtQ850Hn3gUfesU/edit#heading=h.lzdayib259sq
Change-Id: Ief00bec89fe5a9784b0ee13fdaafa3ae58ab654f
diff --git a/core/api/src/main/java/org/onosproject/net/pi/runtime/PiPreEntry.java b/core/api/src/main/java/org/onosproject/net/pi/runtime/PiPreEntry.java
new file mode 100644
index 0000000..fb6c5e0
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/net/pi/runtime/PiPreEntry.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * 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 org.onosproject.net.pi.runtime;
+
+import com.google.common.annotations.Beta;
+
+/**
+ * Configuration entry of a Packet Replication Engine (PRE) of
+ * protocol-independent pipeline.
+ */
+@Beta
+public interface PiPreEntry extends PiEntity {
+
+ /**
+ * Type of PRE entry.
+ */
+ enum PiPreEntryType {
+ /**
+ * Multicast group entry.
+ */
+ MULTICAST_GROUP,
+ /**
+ * Clone session entry.
+ */
+ CLONE_SESSION
+ }
+
+ /**
+ * Returns the type of this PRE entry.
+ *
+ * @return PRE entry type
+ */
+ PiPreEntryType preEntryType();
+}