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diff --git a/src/main/java/org/onap/aai/sparky/sync/IndexCleaner.java b/src/main/java/org/onap/aai/sparky/sync/IndexCleaner.java
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+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017 Amdocs
+ * ================================================================================
+ * 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=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.aai.sparky.sync;
+
+import org.onap.aai.sparky.sync.enumeration.OperationState;
+
+/**
+ * The Interface IndexCleaner.
+ */
+public interface IndexCleaner {
+
+  /**
+   * Populate pre operation collection.
+   *
+   * @return the operation state
+   */
+  public OperationState populatePreOperationCollection();
+
+  /**
+   * Populate post operation collection.
+   *
+   * @return the operation state
+   */
+  public OperationState populatePostOperationCollection();
+
+  /**
+   * Perform cleanup.
+   *
+   * @return the operation state
+   */
+  public OperationState performCleanup();
+
+  public String getIndexName();
+
+}