1 files changed, 50 insertions, 0 deletions
diff --git a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/ophistory/OperationHistoryDataManager.java b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/ophistory/OperationHistoryDataManager.java
new file mode 100644
index 000000000..a1774ea6f
--- /dev/null
+++ b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/ophistory/OperationHistoryDataManager.java
@@ -0,0 +1,50 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2020 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.controlloop.ophistory;
+
+import org.onap.policy.controlloop.ControlLoopOperation;
+import org.onap.policy.controlloop.VirtualControlLoopEvent;
+
+/**
+ * Data manager for the Operation History table.
+ */
+public interface OperationHistoryDataManager {
+
+    /**
+     * Stores an operation in the DB. If the queue is full, then the oldest records is
+     * discarded.
+     *
+     * @param requestId request ID
+     * @param event event with which the operation is associated
+     * @param operation operation to be stored
+     */
+    void store(String requestId, VirtualControlLoopEvent event, ControlLoopOperation operation);
+
+    /**
+     * Starts the background thread.
+     */
+    public void start();
+
+    /**
+     * Stops the background thread and places an "end" item into {@link #operations}.
+     */
+    public void stop();
+}