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<?xml version="1.0" encoding="utf-8"?>
<!--
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.
-->
<section id="Java-Broker-Stores-Memory-Store">
<title>Memory Store</title>
<para>
The Java broker has an in-memory message store implementation.
This section will detail configuration for using the MemoryMessageStore.
</para>
<para>
Note: when using this store, the broker will store both persistent and non-persistent messages
in memory, which is to say that neither will be available following a broker restart, and the
ability to store new messages will be entirely constrained by the JVM heap size.
</para>
<section role="h3" id="Java-Broker-Stores-Memory-Store-Configuration">
<title>Configuration</title>
<para>
In order to use the MemoryMessageStore, you must configure it for each VirtualHost desired by updating the store element
to specify the associated store class, as shown below.
</para>
<example>
<title>Configuring a VirtualHost to use the MemoryMessageStore</title>
<programlisting><![CDATA[
<virtualhosts>
<virtualhost>
<name>vhostname</name>
<vhostname>
<store>
<class>org.apache.qpid.server.store.MemoryMessageStore</class
</store>
...
</vhostname>
</virtualhost>
</virtualhosts>
]]></programlisting>
</example>
</section>
</section>
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