--- /dev/null
+
+/*
+ * Copyright (c) 2013 Cisco Systems, 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.controller.concepts.lang;
+
+public interface Acceptor<I> {
+
+ /**
+ *
+ * @param input
+ * @return true if input is accepted.
+ */
+ boolean isAcceptable(I input);
+}