1 files changed, 40 insertions, 0 deletions
diff --git a/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/listeners/TypedMessageListener.java b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/listeners/TypedMessageListener.java
new file mode 100644
index 00000000..ab381205
--- /dev/null
+++ b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/listeners/TypedMessageListener.java
@@ -0,0 +1,40 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.common.endpoints.listeners;
+
+import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
+
+/**
+ * Listener for messages of a certain type.
+ *
+ * @param <T> type of message/POJO this handles
+ */
+public interface TypedMessageListener<T> {
+
+    /**
+     * Handles receipt of a message.
+     *
+     * @param infra infrastructure with which the message was received
+     * @param topic topic on which the message was received
+     * @param message message that was received
+     */
+    void onTopicEvent(CommInfrastructure infra, String topic, T message);
+}