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/*
*
* 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.
*
*/
package org.apache.qpid.server.ack;
import java.util.Collection;
import java.util.Set;
import java.util.Map;
import org.apache.qpid.AMQException;
import org.apache.qpid.server.queue.QueueEntry;
public interface UnacknowledgedMessageMap
{
public interface Visitor
{
/**
* @param deliveryTag
*@param message the message being iterated over @return true to stop iteration, false to continue
* @throws AMQException
*/
boolean callback(final long deliveryTag, QueueEntry message) throws AMQException;
void visitComplete();
}
void visit(Visitor visitor) throws AMQException;
void add(long deliveryTag, QueueEntry message);
QueueEntry remove(long deliveryTag);
Collection<QueueEntry> cancelAllMessages();
int size();
void clear();
QueueEntry get(long deliveryTag);
/**
* Get the set of delivery tags that are outstanding.
*
* @return a set of delivery tags
*/
Set<Long> getDeliveryTags();
Collection<QueueEntry> acknowledge(long deliveryTag, boolean multiple);
}
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