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diff --git a/extras/vom/vom/bridge_domain_entry.hpp b/extras/vom/vom/bridge_domain_entry.hpp
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+++ b/extras/vom/vom/bridge_domain_entry.hpp
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+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __VOM_BRIDGE_DOMAIN_ENTRY_H__
+#define __VOM_BRIDGE_DOMAIN_ENTRY_H__
+
+#include "vom/bridge_domain.hpp"
+#include "vom/interface.hpp"
+#include "vom/singular_db.hpp"
+
+namespace VOM {
+/**
+ * A MAC forwarding entry in the bridge-domain/L2-FIB
+ */
+class bridge_domain_entry : public object_base
+{
+public:
+  /**
+   * The key for a bridge_domain
+   */
+  typedef std::pair<bridge_domain::key_t, mac_address_t> key_t;
+
+  /**
+   * Construct a bridge_domain in the given bridge domain
+   */
+  bridge_domain_entry(const bridge_domain& bd,
+                      const mac_address_t& mac,
+                      const interface& tx_itf);
+
+  /**
+   * Construct a bridge_domain in the default table
+   */
+  bridge_domain_entry(const mac_address_t& mac, const interface& tx_itf);
+
+  /**
+   * Copy Construct
+   */
+  bridge_domain_entry(const bridge_domain_entry& r);
+
+  /**
+   * Destructor
+   */
+  ~bridge_domain_entry();
+
+  /**
+   * Return the object's key
+   */
+  const key_t key() const;
+
+  /**
+   * comparison operator
+   */
+  bool operator==(const bridge_domain_entry& be) const;
+
+  /**
+   * Return the matching 'singular instance'
+   */
+  std::shared_ptr<bridge_domain_entry> singular() const;
+
+  /**
+   * Find the instnace of the bridge_domain domain in the OM
+   */
+  static std::shared_ptr<bridge_domain_entry> find(const key_t& k);
+
+  /**
+   * Dump all bridge_domain-doamin into the stream provided
+   */
+  static void dump(std::ostream& os);
+
+  /**
+   * replay the object to create it in hardware
+   */
+  void replay(void);
+
+  /**
+   * Convert to string for debugging
+   */
+  std::string to_string() const;
+
+private:
+  /**
+   * Class definition for listeners to OM events
+   */
+  class event_handler : public OM::listener, public inspect::command_handler
+  {
+  public:
+    event_handler();
+    virtual ~event_handler() = default;
+
+    /**
+     * Handle a populate event
+     */
+    void handle_populate(const client_db::key_t& key);
+
+    /**
+     * Handle a replay event
+     */
+    void handle_replay();
+
+    /**
+     * Show the object in the Singular DB
+     */
+    void show(std::ostream& os);
+
+    /**
+     * Get the sortable Id of the listener
+     */
+    dependency_t order() const;
+  };
+
+  /**
+   * event_handler to register with OM
+   */
+  static event_handler m_evh;
+
+  /**
+   * Commit the acculmulated changes into VPP. i.e. to a 'HW" write.
+   */
+  void update(const bridge_domain_entry& obj);
+
+  /**
+   * Find or add the instnace of the bridge_domain domain in the OM
+   */
+  static std::shared_ptr<bridge_domain_entry> find_or_add(
+    const bridge_domain_entry& temp);
+
+  /*
+   * It's the VPPHW class that updates the objects in HW
+   */
+  friend class OM;
+
+  /**
+   * It's the singular_db class that calls replay()
+   */
+  friend class singular_db<key_t, bridge_domain_entry>;
+
+  /**
+   * Sweep/reap the object if still stale
+   */
+  void sweep(void);
+
+  /**
+   * HW configuration for the result of creating the bridge_domain
+   */
+  HW::item<bool> m_hw;
+
+  /**
+   * The mac to match
+   */
+  mac_address_t m_mac;
+
+  /**
+   * The bridge_domain domain the bridge_domain is in.
+   */
+  std::shared_ptr<bridge_domain> m_bd;
+
+  /**
+   * The set of paths
+   */
+  std::shared_ptr<interface> m_tx_itf;
+
+  /**
+   * A map of all bridge_domains
+   */
+  static singular_db<key_t, bridge_domain_entry> m_db;
+};
+
+std::ostream& operator<<(std::ostream& os,
+                         const bridge_domain_entry::key_t& key);
+};
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "mozilla")
+ * End:
+ */
+
+#endif