--- /dev/null
+/*\r
+ * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.\r
+ *\r
+ * This program and the accompanying materials are made available under the\r
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,\r
+ * and is available at http://www.eclipse.org/legal/epl-v10.html\r
+ */\r
+\r
+package org.opendaylight.controller.concepts.tranform;\r
+\r
+import java.util.Collection;\r
+/**\r
+ * \r
+ * @author Tony Tkacik\r
+ *\r
+ * @param <I>\r
+ * @param <P>\r
+ */\r
+public interface AggregateTransformer<I,P> extends Transformer<I,P> {\r
+\r
+ Collection<P> transformAll(Collection<? extends I> inputs);\r
+}\r