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<?xml version="1.0"?>
<!DOCTYPE chapter[
<!ENTITY % entities SYSTEM "commonEntities.xml">
%entities;
]>
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<chapter id="Java-Broker-Introduction">
<title>Introduction</title>
<para>The Java Broker is a powerful open-source message broker that implements all versions of the
<ulink url="http://www.amqp.org"> Advanced Message Queuing Protocol (AMQP)</ulink>. The Java
Broker is actually one of two message brokers provided by the <ulink
url="http://qpid.apache.org">Apache Qpid project</ulink>: the Java Broker and the C++
Broker.</para>
<para>This document relates to the Java Broker. The <ulink url="&qpidCppBook;">C++ Broker is
described separately</ulink>.</para>
<para><emphasis>Headline features</emphasis></para>
<itemizedlist mark="circle">
<listitem>
<para>100% Java implementation - runs on any platform supporting Java 1.6 or higher</para>
</listitem>
<listitem>
<para>Messaging clients support in Java, C++, Python.</para>
</listitem>
<listitem>
<para>JMS 1.1 compliance (Java client).</para>
</listitem>
<listitem>
<para>Persistent and non-persistent (transient) message support</para>
</listitem>
<listitem>
<para>Supports for all common messaging patterns (point-to-point, publish/subscribe, fan-out
etc).</para>
</listitem>
<listitem>
<para>Transaction support including XA<footnote>
<para>XA provided when using AMQP 0-10</para>
</footnote></para>
</listitem>
<listitem>
<para>Supports for all versions of the AMQP protocol</para>
</listitem>
<listitem>
<para>Automatic message translation, allowing clients using different AMQP versions to communicate with each other.</para>
</listitem>
<listitem>
<para>Pluggable authentication architecture with out-of-the-box support for Kerberos, LDAP,
External, and file-based authentication mechanisms.</para>
</listitem>
<listitem>
<para>Pluggable message store architecture with implementations based on <ulink
url="http://db.apache.org/derby/">Apache Derby</ulink>, <ulink
url="&oracleBdbProductOverviewUrl;">Oracle BDB JE</ulink><footnote>
<para>Oracle BDB JE must be downloaded separately.</para>
</footnote>, and Memory Store</para>
</listitem>
<listitem>
<para>Web based management interface and programmatic management interfaces via REST and JMX
APIs.</para>
</listitem>
<listitem>
<para>SSL support</para>
</listitem>
<listitem>
<para>High availability (HA) support.<footnote>
<para>HA currently only available to users of the optional BDB JE HA based message store.</para>
</footnote></para>
</listitem>
</itemizedlist>
</chapter>
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