Overview

Community

Documentation

Resource Adadptors

Related Projects

Support

Developers

Feeds
Print
AMQPool

AMQPool

Jencks contains an JMS pooled ConnectionFactory specific for ActiveMQ. The main difference with the ActiveMQ provided one is that it plays nicely in a transacted environment (XA or JCA) and can also have better performances in some cases (see this blog).

This connection pool comes with three spring factories:

Note that you always use a JcaPooledConnectionFactory if you prefer.

Parameters

Property Type Description
connectionFactory org.apache.activemq.ActiveMQConnectionFactory The underlying ActiveMQ connection factory to use. You can provide it directly or let the factory create it for you using the brokerUrl property
brokerUrl String The URL of the ActiveMQ broker (tcp://localhost:61616 for example
maxConnections int The number of connections to the broker to use simultaneously. The default value is 1, but you can safely increase it to 8 or so in all conditions.
maximumActive int The maximum number of active sessions for a given connection (defaults to 500)
poolFactory org.apache.commons.pool.ObjectPoolFactory the pool factory if you want a specific behavior (a default one will be created that is usually fine)
transactionManager javax.transaction.TransactionManager For XA and JCA pools, the transaction manager should be set
name String For JCA pools, a name must be set to a unique string identifying the activemq broker

Spring configuration

<beans>
  <bean id="connectionFactory" class="org.jencks.amqpool.PooledConnectionFactory">
    <constructor-arg value="tcp://localhost:61616" />
    <property name="maxConnections" value="8" />
  </bean>
</beans>
<beans>
  <bean id="connectionFactory" class="org.jencks.amqpool.XAPooledConnectionFactory">
    <constructor-arg value="tcp://localhost:61616" />
    <property name="maxConnections" value="8" />
    <property name="transactionManager" ref="transactionManager" />
  </bean>
</beans>
<beans>
  <bean id="connectionFactory" class="org.jencks.amqpool.JcaPooledConnectionFactory">
    <constructor-arg value="tcp://localhost:61616" />
    <property name="maxConnections" value="8" />
    <property name="transactionManager" ref="transactionManager" />
    <property name="name" value="LocalBroker" />
  </bean>
</beans>

XBean configuration

If you're using XBean, you can use the following syntax:

<beans xmlns:amqpool="http://jencks.org/amqpool/2.0">
  <amqpool:pool id="connectionFactory" 
                url="tcp://localhost:61616" 
                maxConnections="8" />
</beans>
<beans xmlns:amqpool="http://jencks.org/amqpool/2.0">
  <amqpool:xa-pool id="connectionFactory" 
                   url="tcp://localhost:61616" 
                   maxConnections="8"
                   transactionManager="#transactionManager" />
</beans>
<beans xmlns:amqpool="http://jencks.org/amqpool/2.0">
  <amqpool:jca-pool id="connectionFactory" 
                    url="tcp://localhost:61616" 
                    maxConnections="8"
                    transactionManager="#transactionManager"
                    name="LocalBroker" />
</beans>
Copyright 2003-2006 - The Codehaus. All rights reserved unless otherwise noted.
Powered by Atlassian Confluence