--- /dev/null
+/*
+ * Copyright © 2020 AT&T, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.transportpce.common.fixedflex;
+
+public interface FlexGridInterface {
+
+ FlexGridImpl getFlexWaveMapping(float centerFrequency, float slotwidth);
+
+ double getStart();
+
+ double getStop();
+}