--- /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;
+import java.util.Set;
+
+/**
+ * Transformer with set of acceptance rules
+ *
+ * The transformer provides a set of {@link Acceptor}s, which could be used to
+ * verify if the input will produce result using the transformer.
+ *
+ * The transormer is able to produce result if ANY of associated
+ * {@link Acceptor}s accepted result.
+ *
+ * @author Tony Tkacik
+ *
+ * @param <I>
+ * Input class for transformation
+ * @param <P>
+ * Product of transformation
+ */
+public interface RuleBasedTransformer<I, P> extends Transformer<I, P> {
+
+ /**
+ * Set of {@link Acceptor}, which could be used to verify if the input is
+ * usable by transformer.
+ *
+ * The transformer is able to produce result if ANY of associated
+ * {@link Acceptor}s accepted result.
+ *
+ * @return Set of input acceptance rules associated to this transformer.
+ */
+ Set<Acceptor<I>> getRules();
+
+}