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-rw-r--r--cpp/src/qpid/broker/StatefulQueueObserver.h63
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diff --git a/cpp/src/qpid/broker/StatefulQueueObserver.h b/cpp/src/qpid/broker/StatefulQueueObserver.h
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-#ifndef QPID_BROKER_STATEFULQUEUEOBSERVER_H
-#define QPID_BROKER_STATEFULQUEUEOBSERVER_H
-
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you 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.
- *
- */
-#include "qpid/broker/QueueObserver.h"
-#include "qpid/framing/FieldTable.h"
-
-namespace qpid {
-namespace broker {
-
-/**
- * Specialized type of QueueObserver that maintains internal state that has to
- * be replicated across clustered brokers.
- */
-class StatefulQueueObserver : public QueueObserver
-{
- public:
- StatefulQueueObserver(std::string _id) : id(_id) {}
- virtual ~StatefulQueueObserver() {}
-
- /** This identifier must uniquely identify this particular observer amoung
- * all observers on a queue. For cluster replication, this id will be used
- * to identify the peer queue observer for synchronization across
- * brokers.
- */
- const std::string& getId() const { return id; }
-
- /** This method should return the observer's internal state as an opaque
- * map.
- */
- virtual void getState(qpid::framing::FieldTable& state ) const = 0;
-
- /** The input map represents the internal state of the peer observer that
- * this observer should synchonize to.
- */
- virtual void setState(const qpid::framing::FieldTable&) = 0;
-
-
- private:
- std::string id;
-};
-}} // namespace qpid::broker
-
-#endif /*!QPID_BROKER_STATEFULQUEUEOBSERVER_H*/