13 files changed, 289 insertions, 308 deletions

diff --git a/cpp/src/IceGrid/Database.cpp b/cpp/src/IceGrid/Database.cpp
index 42082b7fddc..457660751c9 100644
--- a/cpp/src/IceGrid/Database.cpp
+++ b/cpp/src/IceGrid/Database.cpp
@@ -230,10 +230,9 @@ Database::getObserverTopic(TopicName name) const
     case ObjectObserverTopicName:
 	return _objectObserverTopic;
     default:
-	assert(false);
 	break;
     }
-    return 0; // Keep the compiler happy.
+    return 0;
 }
 
 void
@@ -392,9 +391,7 @@ Database::addApplication(const ApplicationInfo& info, AdminSessionI* session)
 	ApplicationHelper helper(_communicator, info.descriptor);
 	checkForAddition(helper);
 	load(helper, entries, info.uuid, info.revision);
-	_updating.insert(info.descriptor.name);
-
-	_replicaCache.startApplicationReplication(info.uuid, info.revision);
+	startUpdating(info.descriptor.name);
     }
 
     if(_master)
@@ -410,7 +407,7 @@ Database::addApplication(const ApplicationInfo& info, AdminSessionI* session)
 		Lock sync(*this);
 		entries.clear();
 		unload(ApplicationHelper(_communicator, info.descriptor), entries);
-		_updating.erase(info.descriptor.name);
+		finishUpdating(info.descriptor.name);
 		notifyAll();
 	    }
 	    catch(const DeploymentException& ex)
@@ -422,21 +419,20 @@ Database::addApplication(const ApplicationInfo& info, AdminSessionI* session)
 	}
     }
 
-    //
-    // Save the application descriptor.
-    //
     int serial;
     {
 	Lock sync(*this);
-	_applications.put(StringApplicationInfoDict::value_type(info.descriptor.name, info));
 	serial = ++_applicationSerial;	
-	_updating.erase(info.descriptor.name);
-	notifyAll();
+	_applications.put(StringApplicationInfoDict::value_type(info.descriptor.name, info));
     }
 
     _applicationObserverTopic->applicationAdded(serial, info);
-    _replicaCache.waitForUpdateReplication("application", serial);
-    _replicaCache.finishApplicationReplication(info.uuid, info.revision);
+
+    {
+	Lock sync(*this);
+	finishUpdating(info.descriptor.name);
+	notifyAll();
+    }
 
     if(_traceLevels->application > 0)
     {
@@ -481,11 +477,10 @@ Database::updateApplication(const ApplicationUpdateInfo& updt, AdminSessionI* se
 
 	newDesc = helper.getDefinition();
 
-	_updating.insert(update.descriptor.name);
-	_replicaCache.startApplicationReplication(oldApp.uuid, update.revision);
+	startUpdating(update.descriptor.name);
     }
 
-    finishUpdate(entries, update, oldApp, newDesc, session);
+    finishApplicationUpdate(entries, update, oldApp, newDesc, session);
 }
 
 void
@@ -523,11 +518,10 @@ Database::syncApplicationDescriptor(const ApplicationDescriptor& newDesc, AdminS
 	checkForUpdate(previous, helper);	
 	reload(previous, helper, entries, oldApp.uuid, oldApp.revision + 1);
 
-	_updating.insert(update.descriptor.name);
-	_replicaCache.startApplicationReplication(oldApp.uuid, update.revision);
+	startUpdating(update.descriptor.name);
     }
 
-    finishUpdate(entries, update, oldApp, newDesc, session);
+    finishApplicationUpdate(entries, update, oldApp, newDesc, session);
 }
 
 void
@@ -571,11 +565,10 @@ Database::instantiateServer(const string& application,
 
 	newDesc = helper.getDefinition();
 
-	_updating.insert(update.descriptor.name);
-	_replicaCache.startApplicationReplication(oldApp.uuid, update.revision);
+	startUpdating(update.descriptor.name);
     }
 
-    finishUpdate(entries, update, oldApp, newDesc, session);
+    finishApplicationUpdate(entries, update, oldApp, newDesc, session);
 }
 
 void
@@ -618,7 +611,6 @@ Database::removeApplication(const string& name, AdminSessionI* session)
     }
 
     _applicationObserverTopic->applicationRemoved(serial, name);
-    _replicaCache.waitForUpdateReplication("application", serial);
 
     if(_traceLevels->application > 0)
     {
@@ -729,15 +721,11 @@ Database::getAllNodes(const string& expression)
 void
 Database::addReplica(const string& name, const ReplicaSessionIPtr& session)
 {
-    // 
-    // NOTE: this must be done before we add the replica to the cache
-    // in order for ReplicaCache::waitForUpdateReplication to work.
-    //
-    _applicationObserverTopic->subscribeAndWaitForSubscription(session->getObserver());
-    _adapterObserverTopic->subscribeAndWaitForSubscription(session->getObserver());
-    _objectObserverTopic->subscribeAndWaitForSubscription(session->getObserver());
-
     _replicaCache.add(name, session);
+
+    _applicationObserverTopic->subscribeAndWaitForSubscription(session->getObserver(), name);
+    _adapterObserverTopic->subscribeAndWaitForSubscription(session->getObserver(), name);
+    _objectObserverTopic->subscribeAndWaitForSubscription(session->getObserver(), name);
 }
 
 InternalRegistryPrx 
@@ -753,25 +741,40 @@ Database::getReplicaInfo(const string& name) const
 }
 
 void
-Database::replicaReceivedUpdate(const string& name, const string& update, int serial, const string& failure)
+Database::replicaReceivedUpdate(const string& replica, TopicName name, int serial, const string& failure)
 {
-    _replicaCache.replicaReceivedUpdate(name, update, serial, failure);
+    ObserverTopicPtr topic = getObserverTopic(name);
+    if(topic)
+    {
+	topic->receivedUpdate(replica, serial, failure);
+    }
 }
 
 void
-Database::waitForApplicationReplication(const string& application, int revision)
+Database::waitForApplicationReplication(const AMD_NodeSession_waitForApplicationReplicationPtr& cb,
+					const string& application, 
+					int revision)
 {
-    _replicaCache.waitForApplicationReplication(application, revision);
+    Lock sync(*this);
+    map<string, vector<AMD_NodeSession_waitForApplicationReplicationPtr> >::iterator p = _updating.find(application);
+    if(p != _updating.end())
+    {
+	p->second.push_back(cb);
+    }
+    else
+    {
+	cb->ice_response();
+    }
 }
 
 void
 Database::removeReplica(const string& name, const ReplicaSessionIPtr& session)
 {
-    _replicaCache.remove(name);
+    _applicationObserverTopic->unsubscribe(session->getObserver(), name);
+    _adapterObserverTopic->unsubscribe(session->getObserver(), name);
+    _objectObserverTopic->unsubscribe(session->getObserver(), name); 
 
-    _applicationObserverTopic->unsubscribe(session->getObserver());
-    _adapterObserverTopic->unsubscribe(session->getObserver());
-    _objectObserverTopic->unsubscribe(session->getObserver());
+    _replicaCache.remove(name);
 }
 
 Ice::StringSeq
@@ -881,7 +884,6 @@ Database::setAdapterDirectProxy(const string& adapterId, const string& replicaGr
     {
 	_adapterObserverTopic->adapterRemoved(serial, adapterId);
     }
-    _replicaCache.waitForUpdateReplication("adapter", serial);
     return true;
 }
 
@@ -961,7 +963,6 @@ Database::removeAdapter(const string& adapterId)
     if(infos.empty())
     {
 	_adapterObserverTopic->adapterRemoved(serial, adapterId);
-	_replicaCache.waitForUpdateReplication("adapter", serial);
     }
     else
     {
@@ -971,11 +972,6 @@ Database::removeAdapter(const string& adapterId)
 	{
 	    _adapterObserverTopic->adapterUpdated(serial + i, *p);
 	}
-	i = 0;
-	for(p = infos.begin(); p != infos.end(); ++p, ++i)
-	{
-	    _replicaCache.waitForUpdateReplication("adapter", serial + i);
-	}	
     }
 }
 
@@ -1166,7 +1162,6 @@ Database::addObject(const ObjectInfo& info, bool replaceIfExistsInDatabase)
     {
 	_objectObserverTopic->objectUpdated(serial, info);
     }
-    _replicaCache.waitForUpdateReplication("object", serial);
 
     if(_traceLevels->object > 0)
     {
@@ -1211,7 +1206,6 @@ Database::removeObject(const Ice::Identity& id)
     }
 
     _objectObserverTopic->objectRemoved(serial, id);
-    _replicaCache.waitForUpdateReplication("object", serial);
 
     if(_traceLevels->object > 0)
     {
@@ -1254,7 +1248,6 @@ Database::updateObject(const Ice::ObjectPrx& proxy)
     }
 
     _objectObserverTopic->objectUpdated(serial, info);
-    _replicaCache.waitForUpdateReplication("object", serial);
 
     if(_traceLevels->object > 0)
     {
@@ -1755,11 +1748,11 @@ Database::reload(const ApplicationHelper& oldApp,
 }
 
 void
-Database::finishUpdate(ServerEntrySeq& entries, 
-		       const ApplicationUpdateInfo& update,
-		       const ApplicationInfo& oldApp, 
-		       const ApplicationDescriptor& newDesc,
-		       AdminSessionI* session)
+Database::finishApplicationUpdate(ServerEntrySeq& entries, 
+				  const ApplicationUpdateInfo& update,
+				  const ApplicationInfo& oldApp, 
+				  const ApplicationDescriptor& newDesc,
+				  AdminSessionI* session)
 {
     if(_master)
     {
@@ -1780,7 +1773,7 @@ Database::finishUpdate(ServerEntrySeq& entries,
 		ApplicationHelper previous(_communicator, newDesc);
 		ApplicationHelper helper(_communicator, oldApp.descriptor);
 		reload(previous, helper, entries, oldApp.uuid, oldApp.revision);
-		_updating.erase(newDesc.name);
+		finishUpdating(newDesc.name);
 		notifyAll();
 	    }
 
@@ -1812,13 +1805,15 @@ Database::finishUpdate(ServerEntrySeq& entries,
 
 	_applications.put(StringApplicationInfoDict::value_type(update.descriptor.name, info));
 	serial = ++_applicationSerial;
-	_updating.erase(update.descriptor.name);
-	notifyAll();
     }
 
     _applicationObserverTopic->applicationUpdated(serial, update);
-    _replicaCache.waitForUpdateReplication("application", serial);
-    _replicaCache.finishApplicationReplication(oldApp.uuid, update.revision);
+
+    {
+	Lock sync(*this);
+	finishUpdating(update.descriptor.name);
+	notifyAll();
+    }
 
     if(_traceLevels->application > 0)
     {
@@ -1826,3 +1821,24 @@ Database::finishUpdate(ServerEntrySeq& entries,
 	out << "updated application `" << update.descriptor.name << "'";
     }
 }
+
+void
+Database::startUpdating(const string& name)
+{
+    // Must be called within the synchronization.
+    _updating.insert(make_pair(name, vector<AMD_NodeSession_waitForApplicationReplicationPtr>()));
+}
+
+void
+Database::finishUpdating(const string& name)
+{
+    // Must be called within the synchronization.
+    map<string, vector<AMD_NodeSession_waitForApplicationReplicationPtr> >::iterator p = _updating.find(name);
+    assert(p != _updating.end());
+    for(vector<AMD_NodeSession_waitForApplicationReplicationPtr>::const_iterator q = p->second.begin(); 
+	q != p->second.end(); ++q)
+    {
+	(*q)->ice_response();
+    }
+    _updating.erase(p);
+}
diff --git a/cpp/src/IceGrid/Database.h b/cpp/src/IceGrid/Database.h
index e8226d776cd..4056c8005f6 100644
--- a/cpp/src/IceGrid/Database.h
+++ b/cpp/src/IceGrid/Database.h
@@ -92,8 +92,9 @@ public:
     void addReplica(const std::string&, const ReplicaSessionIPtr&);
     RegistryInfo getReplicaInfo(const std::string&) const;
     InternalRegistryPrx getReplica(const std::string&) const;
-    void replicaReceivedUpdate(const std::string&, const std::string&, int, const std::string&);
-    void waitForApplicationReplication(const std::string&, int);
+    void replicaReceivedUpdate(const std::string&, TopicName, int, const std::string&);
+    void waitForApplicationReplication(const AMD_NodeSession_waitForApplicationReplicationPtr&, const std::string&, 
+				       int);
     void removeReplica(const std::string&, const ReplicaSessionIPtr&);
     Ice::StringSeq getAllReplicas(const std::string& = std::string());
 
@@ -142,11 +143,14 @@ private:
     void load(const ApplicationHelper&, ServerEntrySeq&, const std::string&, int);
     void unload(const ApplicationHelper&, ServerEntrySeq&);
     void reload(const ApplicationHelper&, const ApplicationHelper&, ServerEntrySeq&, const std::string&, int);
-    void finishUpdate(ServerEntrySeq&, const ApplicationUpdateInfo&, const ApplicationInfo&, 
-		      const ApplicationDescriptor&, AdminSessionI*);
+    void finishApplicationUpdate(ServerEntrySeq&, const ApplicationUpdateInfo&, const ApplicationInfo&, 
+				 const ApplicationDescriptor&, AdminSessionI*);
 
     void checkSessionLock(AdminSessionI*);
 
+    void startUpdating(const std::string&);
+    void finishUpdating(const std::string&);
+    
     friend struct AddComponent;
 
     static const std::string _applicationDbName;
@@ -187,7 +191,7 @@ private:
     int _replicaApplicationSerial;
     int _adapterSerial;
     int _objectSerial;
-    std::set<std::string> _updating;
+    std::map<std::string, std::vector<AMD_NodeSession_waitForApplicationReplicationPtr> > _updating;
 };
 typedef IceUtil::Handle<Database> DatabasePtr;
 
diff --git a/cpp/src/IceGrid/Internal.ice b/cpp/src/IceGrid/Internal.ice
index 7ebf0e02e56..163b0c87931 100644
--- a/cpp/src/IceGrid/Internal.ice
+++ b/cpp/src/IceGrid/Internal.ice
@@ -322,7 +322,7 @@ interface NodeSession
      * Wait for the replication of the given application to be done.
      *
      **/
-    ["ami", "cpp:const"] void waitForApplicationReplication(string application, int revision);
+    ["amd", "ami", "cpp:const"] void waitForApplicationReplication(string application, int revision);
 
     /**
      *
@@ -342,6 +342,15 @@ exception ReplicaActiveException
 {
 };
 
+enum TopicName
+{
+    RegistryObserverTopicName,
+    NodeObserverTopicName,
+    ApplicationObserverTopicName,
+    AdapterObserverTopicName,
+    ObjectObserverTopicName
+};
+
 interface ReplicaSession
 {
     /**
@@ -391,7 +400,7 @@ interface ReplicaSession
      * before to continue.
      *
      **/
-    void receivedUpdate(string name, int serial, string failure); 
+    void receivedUpdate(TopicName name, int serial, string failure); 
 
     /**
      *
diff --git a/cpp/src/IceGrid/NodeSessionI.cpp b/cpp/src/IceGrid/NodeSessionI.cpp
index fcffcc71324..e5ca8dfef6d 100644
--- a/cpp/src/IceGrid/NodeSessionI.cpp
+++ b/cpp/src/IceGrid/NodeSessionI.cpp
@@ -108,9 +108,12 @@ NodeSessionI::getServers(const Ice::Current& current) const
 }
 
 void
-NodeSessionI::waitForApplicationReplication(const std::string& application, int revision, const Ice::Current&) const
+NodeSessionI::waitForApplicationReplication_async(const AMD_NodeSession_waitForApplicationReplicationPtr& cb, 
+						  const std::string& application, 
+						  int revision, 
+						  const Ice::Current&) const
 {
-    _database->waitForApplicationReplication(application, revision);
+    _database->waitForApplicationReplication(cb, application, revision);
 }
 
 void
diff --git a/cpp/src/IceGrid/NodeSessionI.h b/cpp/src/IceGrid/NodeSessionI.h
index e5e012cfc43..a21c86d8b17 100644
--- a/cpp/src/IceGrid/NodeSessionI.h
+++ b/cpp/src/IceGrid/NodeSessionI.h
@@ -32,7 +32,8 @@ public:
     virtual NodeObserverPrx getObserver(const Ice::Current&) const;
     virtual void loadServers(const Ice::Current&) const;
     virtual Ice::StringSeq getServers(const Ice::Current&) const;
-    virtual void waitForApplicationReplication(const std::string&, int, const Ice::Current&) const;
+    virtual void waitForApplicationReplication_async(const AMD_NodeSession_waitForApplicationReplicationPtr&,
+						     const std::string&, int, const Ice::Current&) const;
     virtual void destroy(const Ice::Current&);
     
     const NodePrx& getNode() const;
diff --git a/cpp/src/IceGrid/ReplicaCache.cpp b/cpp/src/IceGrid/ReplicaCache.cpp
index 8eb940fa669..f411e170730 100644
--- a/cpp/src/IceGrid/ReplicaCache.cpp
+++ b/cpp/src/IceGrid/ReplicaCache.cpp
@@ -88,11 +88,6 @@ ReplicaCache::remove(const string& name)
 	    Ice::Trace out(_traceLevels->logger, _traceLevels->replicaCat);
 	    out << "replica `" << name << "' down";
 	}
-
-	//
-	// Remove the replica expected updates.
-	//
-	removeReplicaUpdates(name);
     }
     
     try
@@ -177,154 +172,6 @@ ReplicaCache::getEndpoints(const string& name, const Ice::ObjectPrx& proxy) cons
     return _communicator->stringToProxy("dummy")->ice_endpoints(endpoints);
 }
 
-void
-ReplicaCache::waitForUpdateReplication(const string& name, int serial)
-{
-    Lock sync(*this);
-    if(_entries.empty())
-    {
-	return;
-    }
-    
-    vector<string> replicas;
-    for(map<string, ReplicaEntryPtr>::const_iterator s = _entries.begin(); s != _entries.end(); ++s)
-    {
-	replicas.push_back(s->first);
-    }
-
-    ostringstream os;
-    os << name << "-" << serial;
-    const string key = os.str();
-
-    _waitForUpdates.insert(make_pair(key, set<string>(replicas.begin(), replicas.end())));
-
-    //
-    // Wait until all the updates are received.
-    //
-    while(true)
-    {
-	map<string, set<string> >::const_iterator p = _waitForUpdates.find(key);
-	if(p == _waitForUpdates.end())
-	{
-	    map<string, map<string, string> >::iterator q = _updateFailures.find(key);
-	    if(q != _updateFailures.end())
-	    {
-		map<string, string> failures = q->second;
-		_updateFailures.erase(q);
-		
-		ostringstream os;
-		for(map<string, string>::const_iterator r = failures.begin(); r != failures.end(); ++r)
-		{
-		    os << "replication failed on replica `" << r->first << "':\n" << r->second << "\n";
-		}
-		Ice::Error err(_traceLevels->logger);
-		err << os.str();
-	    }
-	    return;
-	}
-	else
-	{
-	    wait();
-	}
-    }
-}
-
-void
-ReplicaCache::replicaReceivedUpdate(const string& name, const string& update, int serial, const string& failure)
-{
-    Lock sync(*this);
-
-    ostringstream os;
-    os << update << "-" << serial;
-    const string key = os.str();
-
-    map<string, set<string> >::iterator p = _waitForUpdates.find(key);
-    if(p != _waitForUpdates.end())
-    {
-	p->second.erase(name);
-	
-	if(!failure.empty())
-	{
-	    map<string, map<string, string> >::iterator q = _updateFailures.find(key);
-	    if(q == _updateFailures.end())
-	    {
-		q = _updateFailures.insert(make_pair(key, map<string ,string>())).first;
-	    }
-	    q->second.insert(make_pair(name, failure));
-	}
-
-	if(p->second.empty())
-	{
-	    _waitForUpdates.erase(p);
-	    notifyAll();
-	}
-    }
-}
-
-void
-ReplicaCache::startApplicationReplication(const string& application, int revision)
-{
-    //
-    // Add the given application to the set of application being
-    // replicated.
-    //
-    Lock sync(*this);
-    _applicationReplication.insert(application);
-}
-
-
-void
-ReplicaCache::finishApplicationReplication(const string& application, int revision)
-{
-    //
-    // Notify waiting threads that the given application replication
-    // is completed.
-    //
-    Lock sync(*this);
-    _applicationReplication.erase(application);
-    notifyAll();
-}
-
-void
-ReplicaCache::waitForApplicationReplication(const string& application, int revision)
-{
-    //
-    // Wait for the given application to be replicated.
-    // 
-    Lock sync(*this);
-    while(_applicationReplication.find(application) != _applicationReplication.end())
-    {
-	wait();
-    }
-}
-
-void
-ReplicaCache::removeReplicaUpdates(const string& name)
-{
-    // Must b called within the synchronization.
-
-    map<string, set<string> >::iterator p = _waitForUpdates.begin();
-    bool notifyMonitor = false;
-    while(p != _waitForUpdates.end())
-    {
-	p->second.erase(name);
-	if(p->second.empty())
-	{
-	    _waitForUpdates.erase(p++);
-	    notifyMonitor = true;
-	}
-	else
-	{
-	    ++p;
-	}
-    }
-    
-    if(notifyMonitor)
-    {
-	notifyAll();
-    }
-}
-
 ReplicaEntry::ReplicaEntry(const std::string& name, const ReplicaSessionIPtr& session) : 
     _name(name),
     _session(session)
diff --git a/cpp/src/IceGrid/ReplicaCache.h b/cpp/src/IceGrid/ReplicaCache.h
index 837a472c093..2bc776ca108 100644
--- a/cpp/src/IceGrid/ReplicaCache.h
+++ b/cpp/src/IceGrid/ReplicaCache.h
@@ -58,24 +58,11 @@ public:
 
     Ice::ObjectPrx getEndpoints(const std::string&, const Ice::ObjectPrx&) const;
 
-    void waitForUpdateReplication(const std::string&, int);
-    void replicaReceivedUpdate(const std::string&, const std::string&, int, const std::string&);
-    
-    void startApplicationReplication(const std::string&, int);
-    void finishApplicationReplication(const std::string&, int);
-    void waitForApplicationReplication(const std::string&, int);
-
 private:
 
-    void removeReplicaUpdates(const std::string&);
-
     const Ice::CommunicatorPtr _communicator;
     const IceStorm::TopicPrx _topic;
     const NodePrx _nodes;
-
-    std::map<std::string, std::set<std::string> > _waitForUpdates;
-    std::map<std::string, std::map<std::string, std::string> > _updateFailures;
-    std::set<std::string> _applicationReplication;
 };
 
 };
diff --git a/cpp/src/IceGrid/ReplicaSessionI.cpp b/cpp/src/IceGrid/ReplicaSessionI.cpp
index ecc9789c6f4..605d0e77595 100644
--- a/cpp/src/IceGrid/ReplicaSessionI.cpp
+++ b/cpp/src/IceGrid/ReplicaSessionI.cpp
@@ -107,9 +107,9 @@ ReplicaSessionI::setAdapterDirectProxy(const string& adapterId,
 }
 
 void
-ReplicaSessionI::receivedUpdate(const string& update, int serial, const string& failure, const Ice::Current&)
+ReplicaSessionI::receivedUpdate(TopicName topic, int serial, const string& failure, const Ice::Current&)
 {
-    _database->replicaReceivedUpdate(_name, update, serial, failure);
+    _database->replicaReceivedUpdate(_name, topic, serial, failure);
 }
 
 void
diff --git a/cpp/src/IceGrid/ReplicaSessionI.h b/cpp/src/IceGrid/ReplicaSessionI.h
index 737ff4aa656..aa737b91b06 100644
--- a/cpp/src/IceGrid/ReplicaSessionI.h
+++ b/cpp/src/IceGrid/ReplicaSessionI.h
@@ -38,7 +38,7 @@ public:
     virtual void registerWellKnownObjects(const ObjectInfoSeq&, const Ice::Current&);
     virtual void setAdapterDirectProxy(const std::string&, const std::string&, const Ice::ObjectPrx&, 
 				       const Ice::Current&);
-    virtual void receivedUpdate(const std::string&, int, const std::string&, const Ice::Current&);
+    virtual void receivedUpdate(TopicName, int, const std::string&, const Ice::Current&);
     virtual void destroy(const Ice::Current&);
     
     virtual IceUtil::Time timestamp() const;
diff --git a/cpp/src/IceGrid/ReplicaSessionManager.cpp b/cpp/src/IceGrid/ReplicaSessionManager.cpp
index b1045c49a75..3ebc345c5d1 100644
--- a/cpp/src/IceGrid/ReplicaSessionManager.cpp
+++ b/cpp/src/IceGrid/ReplicaSessionManager.cpp
@@ -49,7 +49,7 @@ public:
 	    os << ex << ":\n" << ex.reason;
 	    failure = os.str();
 	}
-	_manager.receivedUpdate("application", getSerial(current.ctx, "application"), failure);
+	_manager.receivedUpdate(ApplicationObserverTopicName, getSerial(current.ctx), failure);
     }
 
     virtual void 
@@ -66,7 +66,7 @@ public:
 	    os << ex << ":\napplication: " << ex.name;
 	    failure = os.str();
 	}
-	_manager.receivedUpdate("application", getSerial(current.ctx, "application"), failure);
+	_manager.receivedUpdate(ApplicationObserverTopicName, getSerial(current.ctx), failure);
     }
 
     virtual void 
@@ -89,7 +89,7 @@ public:
 	    os << ex << ":\napplication: " << ex.name;
 	    failure = os.str();
 	}
-	_manager.receivedUpdate("application", getSerial(current.ctx, "application"), failure);
+	_manager.receivedUpdate(ApplicationObserverTopicName, getSerial(current.ctx), failure);
     }
 
     virtual void
@@ -106,7 +106,7 @@ public:
 	{
 	    failure = "adapter `" + info.id + "' already exists and belongs to an application";
 	}
-	_manager.receivedUpdate("adapter", getSerial(current.ctx, "adapter"), failure);
+	_manager.receivedUpdate(AdapterObserverTopicName, getSerial(current.ctx), failure);
     }
 
     virtual void 
@@ -117,7 +117,7 @@ public:
 	{
 	    failure = "adapter `" + info.id + "' already exists and belongs to an application";
 	}
-	_manager.receivedUpdate("adapter", getSerial(current.ctx, "adapter"), failure);
+	_manager.receivedUpdate(AdapterObserverTopicName, getSerial(current.ctx), failure);
     }
 
     virtual void 
@@ -128,7 +128,7 @@ public:
 	{
 	    failure = "adapter `" + id + "' already exists and belongs to an application";
 	}
-	_manager.receivedUpdate("adapter", getSerial(current.ctx, "adapter"), failure);
+	_manager.receivedUpdate(AdapterObserverTopicName, getSerial(current.ctx), failure);
     }
 
     virtual void
@@ -152,7 +152,7 @@ public:
 	    os << "id: " << info.proxy->ice_getCommunicator()->identityToString(info.proxy->ice_getIdentity());
 	    failure = os.str();
 	}
-	_manager.receivedUpdate("object", getSerial(current.ctx, "object"), failure);
+	_manager.receivedUpdate(ObjectObserverTopicName, getSerial(current.ctx), failure);
     }
 
     virtual void 
@@ -169,7 +169,7 @@ public:
 	    os << ex << ":\n" << ex.reason;
 	    failure = os.str();
 	}
-	_manager.receivedUpdate("object", getSerial(current.ctx, "object"), failure);
+	_manager.receivedUpdate(ObjectObserverTopicName, getSerial(current.ctx), failure);
     }
 
     virtual void 
@@ -189,15 +189,15 @@ public:
 	catch(const ObjectNotRegisteredException&)
 	{
 	}
-	_manager.receivedUpdate("object", getSerial(current.ctx, "object"), failure);
+	_manager.receivedUpdate(ObjectObserverTopicName, getSerial(current.ctx), failure);
     }
 
 private:
 
     int 
-    getSerial(const Ice::Context& context, const string& name)
+    getSerial(const Ice::Context& context)
     {
-	Ice::Context::const_iterator p = context.find(name);
+	Ice::Context::const_iterator p = context.find("serial");
 	if(p != context.end())
 	{
 	    int serial;
@@ -305,14 +305,14 @@ ReplicaSessionManager::destroy()
 }
 
 void
-ReplicaSessionManager::receivedUpdate(const string& update, int serial, const string& failure)
+ReplicaSessionManager::receivedUpdate(TopicName name, int serial, const string& failure)
 {
     ReplicaSessionPrx session = _thread->getSession();
     if(session)
     {
 	try
 	{
-	    session->receivedUpdate(update, serial, failure);
+	    session->receivedUpdate(name, serial, failure);
 	}
 	catch(const Ice::LocalException&)
 	{
diff --git a/cpp/src/IceGrid/ReplicaSessionManager.h b/cpp/src/IceGrid/ReplicaSessionManager.h
index a1bc90bf326..6f895755ec6 100644
--- a/cpp/src/IceGrid/ReplicaSessionManager.h
+++ b/cpp/src/IceGrid/ReplicaSessionManager.h
@@ -41,7 +41,7 @@ public:
     NodePrxSeq getNodes() const;
     void destroy();
 
-    void receivedUpdate(const std::string&, int, const std::string&);
+    void receivedUpdate(TopicName, int, const std::string&);
     void registerAllWellKnownObjects();
     ReplicaSessionPrx getSession() const { return _thread->getSession(); }
 
diff --git a/cpp/src/IceGrid/Topics.cpp b/cpp/src/IceGrid/Topics.cpp
index 6eebdae97bc..5c896132f1b 100644
--- a/cpp/src/IceGrid/Topics.cpp
+++ b/cpp/src/IceGrid/Topics.cpp
@@ -22,9 +22,11 @@ class InitCB : public T
 {
 public:
 
-    InitCB(const ObserverTopicPtr& topic, const Ice::ObjectPrx& observer, const string& name, int serial) : 
+    InitCB(const ObserverTopicPtr& topic, const Ice::ObjectPrx& observer, const string& subscriberName, 
+	   const string& name, int serial) : 
 	_topic(topic),
 	_observer(observer),
+	_subscriberName(subscriberName),
 	_name(name),
 	_serial(serial)
     {	
@@ -33,7 +35,7 @@ public:
     void
     ice_response()
     {
-	_topic->subscribe(_observer, _serial);
+	_topic->subscribe(_observer, _subscriberName, _serial);
     }
 
     void
@@ -47,6 +49,7 @@ private:
 
     const ObserverTopicPtr _topic;
     const Ice::ObjectPrx _observer;
+    const string _subscriberName;
     const string _name;
     const int _serial;
 };
@@ -80,13 +83,13 @@ ObserverTopic::~ObserverTopic()
 }
 
 void
-ObserverTopic::subscribe(const Ice::ObjectPrx& obsv, int serial)
+ObserverTopic::subscribe(const Ice::ObjectPrx& obsv, const string& name, int serial)
 {
     while(true)
     {
 	if(serial == -1)
 	{
-	    initObserver(obsv);
+	    initObserver(obsv, name);
 	    return;
 	}
 
@@ -97,19 +100,19 @@ ObserverTopic::subscribe(const Ice::ObjectPrx& obsv, int serial)
 	    continue;
 	}
 
-	subscribeImpl(obsv);
+	subscribeImpl(obsv, name);
 	break;
     }
 }
 
 void
-ObserverTopic::subscribeAndWaitForSubscription(const Ice::ObjectPrx& obsv)
+ObserverTopic::subscribeAndWaitForSubscription(const Ice::ObjectPrx& obsv, const string& name)
 {
     {
 	Lock sync(*this);
 	_waitForSubscribe.insert(obsv->ice_getIdentity());
     }
-    subscribe(obsv);
+    subscribe(obsv, name);
     {
 	Lock sync(*this);
 	while(_topic && _waitForSubscribe.find(obsv->ice_getIdentity()) != _waitForSubscribe.end())
@@ -120,13 +123,39 @@ ObserverTopic::subscribeAndWaitForSubscription(const Ice::ObjectPrx& obsv)
 }
  
 void
-ObserverTopic::unsubscribe(const Ice::ObjectPrx& observer)
+ObserverTopic::unsubscribe(const Ice::ObjectPrx& observer, const string& name)
 {
     Lock sync(*this);
     if(_topic)
     {
 	_topic->unsubscribe(observer);
     }
+
+    if(!name.empty())
+    {
+	_syncSubscribers.erase(name);
+
+	map<int, set<string> >::iterator p = _waitForUpdates.begin();
+	bool notifyMonitor = false;
+	while(p != _waitForUpdates.end())
+	{
+	    p->second.erase(name);
+	    if(p->second.empty())
+	    {
+		_waitForUpdates.erase(p++);
+		notifyMonitor = true;
+	    }
+	    else
+	    {
+		++p;
+	    }
+	}
+    
+	if(notifyMonitor)
+	{
+	    notifyAll();
+	}
+    }
 }
 
 void
@@ -137,8 +166,78 @@ ObserverTopic::destroy()
     notifyAll();
 }
 
+void
+ObserverTopic::receivedUpdate(const string& name, int serial, const string& failure)
+{
+    Lock sync(*this);
+
+    map<int, set<string> >::iterator p = _waitForUpdates.find(serial);
+    if(p != _waitForUpdates.end())
+    {
+	p->second.erase(name);
+	
+	if(!failure.empty())
+	{
+	    map<int, map<string, string> >::iterator q = _updateFailures.find(serial);
+	    if(q == _updateFailures.end())
+	    {
+		q = _updateFailures.insert(make_pair(serial, map<string ,string>())).first;
+	    }
+	    q->second.insert(make_pair(name, failure));
+	}
+
+	if(p->second.empty())
+	{
+	    _waitForUpdates.erase(p);
+	    notifyAll();
+	}
+    }
+}
+
+void
+ObserverTopic::waitForSyncedSubscribers(int serial)
+{
+    if(_syncSubscribers.empty())
+    {
+	return;
+    }
+    
+    _waitForUpdates.insert(make_pair(serial, _syncSubscribers));
+
+    //
+    // Wait until all the updates are received.
+    //
+    while(true)
+    {
+	map<int, set<string> >::const_iterator p = _waitForUpdates.find(serial);
+	if(p == _waitForUpdates.end())
+	{
+	    map<int, map<string, string> >::iterator q = _updateFailures.find(serial);
+	    if(q != _updateFailures.end())
+	    {
+		map<string, string> failures = q->second;
+		_updateFailures.erase(q);
+		
+		ostringstream os;
+		for(map<string, string>::const_iterator r = failures.begin(); r != failures.end(); ++r)
+		{
+		    os << "replication failed on replica `" << r->first << "':\n" << r->second << "\n";
+		}
+		// TODO: XXX
+//		Ice::Error err(_traceLevels->logger);
+//		err << os.str();
+	    }
+	    return;
+	}
+	else
+	{
+	    wait();
+	}
+    }
+}
+
 void 
-ObserverTopic::subscribeImpl(const Ice::ObjectPrx& observer)
+ObserverTopic::subscribeImpl(const Ice::ObjectPrx& observer, const string& name)
 {
     // This must be called with the mutex locked.
     if(!_topic)
@@ -151,6 +250,12 @@ ObserverTopic::subscribeImpl(const Ice::ObjectPrx& observer)
     _topic->subscribe(qos, observer);
 
     _waitForSubscribe.erase(observer->ice_getIdentity());
+
+    if(!name.empty())
+    {
+	_syncSubscribers.insert(name);
+    }
+
     notifyAll();
 }
 
@@ -171,13 +276,13 @@ ObserverTopic::updateSerial(int serial)
 }
 
 Ice::Context
-ObserverTopic::getContext(const string& name, int serial) const
+ObserverTopic::getContext(int serial) const
 {
     ostringstream os;
     os << serial;
 
     Ice::Context context;
-    context[name] = os.str();
+    context["serial"] = os.str();
     return context;
 }
 
@@ -233,7 +338,7 @@ RegistryObserverTopic::registryDown(const string& name)
 }
 
 void
-RegistryObserverTopic::initObserver(const Ice::ObjectPrx& obsv)
+RegistryObserverTopic::initObserver(const Ice::ObjectPrx& obsv, const string& name)
 {
     RegistryObserverPrx observer = RegistryObserverPrx::uncheckedCast(obsv);
     RegistryInfoSeq registries;
@@ -247,8 +352,8 @@ RegistryObserverTopic::initObserver(const Ice::ObjectPrx& obsv)
 	}
 	serial = _serial;
     }
-    observer->registryInit_async(new InitCB<AMI_RegistryObserver_registryInit>(this, observer, "registry", serial),
-				 registries);
+    observer->registryInit_async(new InitCB<AMI_RegistryObserver_registryInit>(this, observer, name, "registry", 
+									       serial), registries);
 }
 
 NodeObserverTopic::NodeObserverTopic(const IceStorm::TopicManagerPrx& topicManager, 
@@ -431,7 +536,7 @@ NodeObserverTopic::nodeDown(const string& name)
 }
 
 void
-NodeObserverTopic::initObserver(const Ice::ObjectPrx& obsv)
+NodeObserverTopic::initObserver(const Ice::ObjectPrx& obsv, const string& name)
 {
     NodeObserverPrx observer = NodeObserverPrx::uncheckedCast(obsv);
     int serial;
@@ -445,7 +550,7 @@ NodeObserverTopic::initObserver(const Ice::ObjectPrx& obsv)
 	}
 	serial = _serial;
     }
-    observer->nodeInit_async(new InitCB<AMI_NodeObserver_nodeInit>(this, observer, "node", serial), nodes);
+    observer->nodeInit_async(new InitCB<AMI_NodeObserver_nodeInit>(this, observer, name, "node", serial), nodes);
 }
 
 ApplicationObserverTopic::ApplicationObserverTopic(const IceStorm::TopicManagerPrx& topicManager,
@@ -472,7 +577,7 @@ ApplicationObserverTopic::applicationInit(int serial, const ApplicationInfoSeq&
     }
     try
     {
-	_publisher->applicationInit(serial, apps, getContext("application", serial));
+	_publisher->applicationInit(serial, apps, getContext(serial));
     }
     catch(const Ice::LocalException& ex)
     {
@@ -493,13 +598,14 @@ ApplicationObserverTopic::applicationAdded(int serial, const ApplicationInfo& in
     _applications.insert(make_pair(info.descriptor.name, info));
     try
     {
-	_publisher->applicationAdded(serial, info, getContext("application", serial));
+	_publisher->applicationAdded(serial, info, getContext(serial));
     }
     catch(const Ice::LocalException& ex)
     {
 	Ice::Warning out(_publisher->ice_getCommunicator()->getLogger());
 	out << "unexpected exception while publishing `applicationAdded' update:\n" << ex;    
     }
+    waitForSyncedSubscribers(serial);
 }
 
 void 
@@ -514,13 +620,14 @@ ApplicationObserverTopic::applicationRemoved(int serial, const string& name)
     _applications.erase(name);
     try
     {
-	_publisher->applicationRemoved(serial, name, getContext("application", serial));
+	_publisher->applicationRemoved(serial, name, getContext(serial));
     }
     catch(const Ice::LocalException& ex)
     {
 	Ice::Warning out(_publisher->ice_getCommunicator()->getLogger());
 	out << "unexpected exception while publishing `applicationRemoved' update:\n" << ex;    
     }
+    waitForSyncedSubscribers(serial);
 }
 
 void 
@@ -566,17 +673,18 @@ ApplicationObserverTopic::applicationUpdated(int serial, const ApplicationUpdate
     }
     try
     {
-	_publisher->applicationUpdated(serial, info, getContext("application", serial));
+	_publisher->applicationUpdated(serial, info, getContext(serial));
     }
     catch(const Ice::LocalException& ex)
     {
 	Ice::Warning out(_publisher->ice_getCommunicator()->getLogger());
 	out << "unexpected exception while publishing `applicationUpdated' update:\n" << ex;    
     }
+    waitForSyncedSubscribers(serial);
 }
 
 void 
-ApplicationObserverTopic::initObserver(const Ice::ObjectPrx& obsv)
+ApplicationObserverTopic::initObserver(const Ice::ObjectPrx& obsv, const string& name)
 {
     ApplicationObserverPrx observer = ApplicationObserverPrx::uncheckedCast(obsv);
     int serial;
@@ -590,8 +698,8 @@ ApplicationObserverTopic::initObserver(const Ice::ObjectPrx& obsv)
 	    applications.push_back(p->second);
 	}
     }
-    observer->applicationInit_async(new InitCB<AMI_ApplicationObserver_applicationInit>(this, observer, "application",
-											serial), 
+    observer->applicationInit_async(new InitCB<AMI_ApplicationObserver_applicationInit>(this, observer, name, 
+											"application", serial), 
 				    serial, applications);
 }
 
@@ -619,7 +727,7 @@ AdapterObserverTopic::adapterInit(int serial, const AdapterInfoSeq& adpts)
     }
     try
     {
-	_publisher->adapterInit(adpts, getContext("adapter", serial));
+	_publisher->adapterInit(adpts, getContext(serial));
     }
     catch(const Ice::LocalException& ex)
     {
@@ -640,13 +748,14 @@ AdapterObserverTopic::adapterAdded(int serial, const AdapterInfo& info)
     _adapters.insert(make_pair(info.id, info));
     try
     {
-	_publisher->adapterAdded(info, getContext("adapter", serial));
+	_publisher->adapterAdded(info, getContext(serial));
     }
     catch(const Ice::LocalException& ex)
     {
 	Ice::Warning out(_publisher->ice_getCommunicator()->getLogger());
 	out << "unexpected exception while publishing `adapterAdded' update:\n" << ex;    
     }
+    waitForSyncedSubscribers(serial);
 }
 
 void 
@@ -661,13 +770,14 @@ AdapterObserverTopic::adapterUpdated(int serial, const AdapterInfo& info)
     _adapters[info.id] = info;
     try
     {
-	_publisher->adapterUpdated(info, getContext("adapter", serial));
+	_publisher->adapterUpdated(info, getContext(serial));
     }
     catch(const Ice::LocalException& ex)
     {
 	Ice::Warning out(_publisher->ice_getCommunicator()->getLogger());
 	out << "unexpected exception while publishing `adapterUpdated' update:\n" << ex;    
     }
+    waitForSyncedSubscribers(serial);
 }
 
 void
@@ -682,17 +792,18 @@ AdapterObserverTopic::adapterRemoved(int serial, const string& id)
     _adapters.erase(id);
     try
     {
-	_publisher->adapterRemoved(id, getContext("adapter", serial));
+	_publisher->adapterRemoved(id, getContext(serial));
     }
     catch(const Ice::LocalException& ex)
     {
 	Ice::Warning out(_publisher->ice_getCommunicator()->getLogger());
 	out << "unexpected exception while publishing `adapterRemoved' update:\n" << ex;    
     }
+    waitForSyncedSubscribers(serial);
 }
 
 void 
-AdapterObserverTopic::initObserver(const Ice::ObjectPrx& obsv)
+AdapterObserverTopic::initObserver(const Ice::ObjectPrx& obsv, const string& name)
 {
     AdapterObserverPrx observer = AdapterObserverPrx::uncheckedCast(obsv);
     int serial;
@@ -706,7 +817,7 @@ AdapterObserverTopic::initObserver(const Ice::ObjectPrx& obsv)
 	    adapters.push_back(p->second);
 	}	
     }	    
-    observer->adapterInit_async(new InitCB<AMI_AdapterObserver_adapterInit>(this, observer, "adapter", serial), 
+    observer->adapterInit_async(new InitCB<AMI_AdapterObserver_adapterInit>(this, observer, name, "adapter", serial), 
 				adapters);
 }
 
@@ -734,7 +845,7 @@ ObjectObserverTopic::objectInit(int serial, const ObjectInfoSeq& objects)
     }
     try
     {
-	_publisher->objectInit(objects, getContext("object", serial));
+	_publisher->objectInit(objects, getContext(serial));
     }
     catch(const Ice::LocalException& ex)
     {
@@ -755,13 +866,14 @@ ObjectObserverTopic::objectAdded(int serial, const ObjectInfo& info)
     _objects.insert(make_pair(info.proxy->ice_getIdentity(), info));
     try
     {
-	_publisher->objectAdded(info, getContext("object", serial));
+	_publisher->objectAdded(info, getContext(serial));
     }
     catch(const Ice::LocalException& ex)
     {
 	Ice::Warning out(_publisher->ice_getCommunicator()->getLogger());
 	out << "unexpected exception while publishing `objectAdded' update:\n" << ex;    
     }
+    waitForSyncedSubscribers(serial);
 }
 
 void 
@@ -776,13 +888,14 @@ ObjectObserverTopic::objectUpdated(int serial, const ObjectInfo& info)
     _objects[info.proxy->ice_getIdentity()] = info;
     try
     {
-	_publisher->objectUpdated(info, getContext("object", serial));
+	_publisher->objectUpdated(info, getContext(serial));
     }
     catch(const Ice::LocalException& ex)
     {
 	Ice::Warning out(_publisher->ice_getCommunicator()->getLogger());
 	out << "unexpected exception while publishing `objectUpdated' update:\n" << ex;    
     }
+    waitForSyncedSubscribers(serial);
 }
 
 void
@@ -797,17 +910,18 @@ ObjectObserverTopic::objectRemoved(int serial, const Ice::Identity& id)
     _objects.erase(id);
     try
     {
-	_publisher->objectRemoved(id, getContext("object", serial));
+	_publisher->objectRemoved(id, getContext(serial));
     }
     catch(const Ice::LocalException& ex)
     {
 	Ice::Warning out(_publisher->ice_getCommunicator()->getLogger());
 	out << "unexpected exception while publishing `objectRemoved' update:\n" << ex;    
     }
+    waitForSyncedSubscribers(serial);
 }
 
 void 
-ObjectObserverTopic::initObserver(const Ice::ObjectPrx& obsv)
+ObjectObserverTopic::initObserver(const Ice::ObjectPrx& obsv, const string& name)
 {
     ObjectObserverPrx observer = ObjectObserverPrx::uncheckedCast(obsv);
     int serial;
@@ -820,7 +934,8 @@ ObjectObserverTopic::initObserver(const Ice::ObjectPrx& obsv)
 	    objects.push_back(p->second);
 	}
     }	    
-    observer->objectInit_async(new InitCB<AMI_ObjectObserver_objectInit>(this, observer, "object", serial), objects);
+    observer->objectInit_async(new InitCB<AMI_ObjectObserver_objectInit>(this, observer, name, "object", serial), 
+			       objects);
 }
 
 
diff --git a/cpp/src/IceGrid/Topics.h b/cpp/src/IceGrid/Topics.h
index e17f3c9a438..c561dfa5862 100644
--- a/cpp/src/IceGrid/Topics.h
+++ b/cpp/src/IceGrid/Topics.h
@@ -20,14 +20,6 @@
 
 namespace IceGrid
 {
-enum TopicName
-{
-    RegistryObserverTopicName,
-    NodeObserverTopicName,
-    ApplicationObserverTopicName,
-    AdapterObserverTopicName,
-    ObjectObserverTopicName
-};    
 
 class ObserverTopic : public IceUtil::Monitor<IceUtil::Mutex>, virtual public Ice::Object
 {
@@ -36,23 +28,30 @@ public:
     ObserverTopic(const IceStorm::TopicManagerPrx&, const std::string&);
     virtual ~ObserverTopic();
 
-    void subscribe(const Ice::ObjectPrx&, int = -1);
-    void subscribeAndWaitForSubscription(const Ice::ObjectPrx&);
-    void unsubscribe(const Ice::ObjectPrx&);
+    void subscribe(const Ice::ObjectPrx&, const std::string& = std::string(), int = -1);
+    void subscribeAndWaitForSubscription(const Ice::ObjectPrx&, const std::string& = std::string());
+    void unsubscribe(const Ice::ObjectPrx&, const std::string& = std::string());
     void destroy();
 
-    virtual void initObserver(const Ice::ObjectPrx&) = 0;
+    void receivedUpdate(const std::string&, int, const std::string&);
+
+    virtual void initObserver(const Ice::ObjectPrx&, const std::string&) = 0;
 
 protected:
 
-    void subscribeImpl(const Ice::ObjectPrx&);
+    void waitForSyncedSubscribers(int);
+    void subscribeImpl(const Ice::ObjectPrx&, const std::string&);
     void updateSerial(int);
-    Ice::Context getContext(const std::string&, int) const;
+    Ice::Context getContext(int) const;
 
     IceStorm::TopicPrx _topic;
     Ice::ObjectPrx _basePublisher;
     std::set<Ice::Identity> _waitForSubscribe;
-    int _serial;    
+    int _serial;
+
+    std::set<std::string> _syncSubscribers;
+    std::map<int, std::set<std::string> > _waitForUpdates;
+    std::map<int, std::map<std::string, std::string> > _updateFailures;
 };
 typedef IceUtil::Handle<ObserverTopic> ObserverTopicPtr;
 
@@ -65,7 +64,7 @@ public:
     void registryUp(const RegistryInfo&);
     void registryDown(const std::string&);
 
-    virtual void initObserver(const Ice::ObjectPrx&);
+    virtual void initObserver(const Ice::ObjectPrx&, const std::string&);
 
 private:
 
@@ -89,7 +88,7 @@ public:
     const NodeObserverPrx& getPublisher() { return _externalPublisher; }
 
     void nodeDown(const std::string&);
-    virtual void initObserver(const Ice::ObjectPrx&);
+    virtual void initObserver(const Ice::ObjectPrx&, const std::string&);
 
 private:
 
@@ -110,7 +109,7 @@ public:
     void applicationRemoved(int, const std::string&);
     void applicationUpdated(int, const ApplicationUpdateInfo&);
 
-    virtual void initObserver(const Ice::ObjectPrx&);
+    virtual void initObserver(const Ice::ObjectPrx&, const std::string&);
 
 private:
 
@@ -130,7 +129,7 @@ public:
     void adapterUpdated(int, const AdapterInfo&);
     void adapterRemoved(int, const std::string&);
 
-    virtual void initObserver(const Ice::ObjectPrx&);
+    virtual void initObserver(const Ice::ObjectPrx&, const std::string&);
 
 private:
 
@@ -150,7 +149,7 @@ public:
     void objectUpdated(int, const ObjectInfo&);
     void objectRemoved(int, const Ice::Identity&);
 
-    virtual void initObserver(const Ice::ObjectPrx&);
+    virtual void initObserver(const Ice::ObjectPrx&, const std::string&);
 
 private: