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#ifndef QPID_BROKER_QUEUECURSOR_H
#define QPID_BROKER_QUEUECURSOR_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/BrokerImportExport.h"
#include "qpid/sys/IntegerTypes.h"
#include <boost/shared_ptr.hpp>
namespace qpid {
namespace broker {
class Message;
enum SubscriptionType
{
CONSUMER,
BROWSER,
PURGE,
REPLICATOR
};
class CursorContext {
public:
virtual ~CursorContext() {}
};
/**
*
*/
class QueueCursor
{
public:
QPID_BROKER_EXTERN QueueCursor(SubscriptionType type = CONSUMER);
private:
SubscriptionType type;
int32_t position;
int32_t version;
bool valid;
boost::shared_ptr<CursorContext> context;
void setPosition(int32_t p, int32_t v);
bool check(const Message& m);
bool isValid(int32_t v);
friend class MessageDeque;
friend class MessageMap;
friend class PriorityQueue;
friend class PagedQueue;
template <typename T> friend class IndexedDeque;
};
}} // namespace qpid::broker
#endif /*!QPID_BROKER_QUEUECURSOR_H*/
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