--- /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.sal.core.api;
+
+import org.opendaylight.controller.sal.core.api.Broker.ConsumerSession;
+
+/**
+ *
+ * Session-specific instance of the broker functionality.
+ *
+ * <p>
+ * BrokerService is marker interface for infrastructure services provided by the
+ * SAL. These services are session-specific, each {@link Provider} and
+ * {@link Consumer} usually has own instance of the service with it's own
+ * context.
+ *
+ * <p>
+ * The consumer's (or provider's) instance of specific service could be obtained
+ * by invoking {@link ConsumerSession#getService(Class)} method on session
+ * assigned to the consumer.
+ *
+ * <p>
+ * {@link BrokerService} and {@link Provider} may seem similar, but provider
+ * provides YANG model-based functionality and {@link BrokerService} exposes the
+ * necessary supporting functionality to implement specific functionality of
+ * YANG and to reuse it in the development of {@link Consumer}s and
+ * {@link Provider}s.
+ *
+ *
+ */
+public interface BrokerService {
+
+ void closeSession();
+}