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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.queue;
import org.apache.qpid.AMQException;
import org.apache.qpid.framing.ContentHeaderBody;
import org.apache.qpid.server.store.StoreContext;
import org.apache.qpid.framing.abstraction.ContentChunk;
import org.apache.qpid.framing.abstraction.MessagePublishInfo;
/**
* A pluggable way of getting message data. Implementations can provide intelligent caching for example or
* even no caching at all to minimise the broker memory footprint.
*/
public interface AMQMessageHandle
{
ContentHeaderBody getContentHeaderBody(StoreContext context) throws AMQException;
/**
*
* @return the messageId for the message associated with this handle
*/
Long getMessageId();
/**
* @return the number of body frames associated with this message
*/
int getBodyCount(StoreContext context) throws AMQException;
/**
* @return the size of the body
*/
long getBodySize(StoreContext context) throws AMQException;
/**
* Get a particular content body
* @param index the index of the body to retrieve, must be between 0 and getBodyCount() - 1
* @return a content body
* @throws IllegalArgumentException if the index is invalid
*/
ContentChunk getContentChunk(StoreContext context, int index) throws IllegalArgumentException, AMQException;
void addContentBodyFrame(StoreContext storeContext, ContentChunk contentBody, boolean isLastContentBody) throws AMQException;
MessagePublishInfo getMessagePublishInfo(StoreContext context) throws AMQException;
boolean isPersistent();
void setPublishAndContentHeaderBody(StoreContext storeContext, MessagePublishInfo messagePublishInfo,
ContentHeaderBody contentHeaderBody)
throws AMQException;
void removeMessage(StoreContext storeContext) throws AMQException;
long getArrivalTime();
}
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