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From pgiesin <pgie...@hubcitymedia.com>
Subject Spring + Tomcat Global JNDI Resource
Date Thu, 23 Nov 2006 04:19:17 GMT

I am trying to configure ActiveMQ from a Global JNDI Resource in Tomcat. I
have the following:

<Resource name="jms/ActiveMQConnectionFactory" auth="Container"
               type="org.apache.activemq.ActiveMQConnectionFactory"
               factory="org.apache.activemq.jndi.JNDIReferenceFactory"
              
brokerURL="failover:(tcp://localhost:12000,tcp://localhost:120001)"
               brokerName="ActiveMQBroker"/>

Then in Spring I have the following:

    <bean id="jmsFactory"
class="org.springframework.jndi.JndiObjectFactoryBean">
        <property name="jndiName"
value="java:/comp/env/jms/ActiveMQConnectionFactory"/>
    </bean>

    <bean id="JMSTemplate" class="org.springframework.jms.core.JmsTemplate">
        <property name="connectionFactory">
            <bean
class="org.springframework.jms.connection.SingleConnectionFactory">
                <property name="targetConnectionFactory" ref="jmsFactory" />
            </bean>
        </property>
    </bean>

When I deploy this code I get the following error:

org.springframework.beans.TypeMismatchException: Failed to convert property
value of type [org.apache.activemq.ActiveMQConnectionFactory] to required
type [javax.jms.ConnectionFacto
ry] for property 'targetConnectionFactory'; nested exception is
java.lang.IllegalArgumentException: No matching editors or conversion
strategy found

If I understand this correctly, it means that the jmsFactory bean was
populated from JNDI as expected. However, when trying to configure the
jmsTemplate it expects a ConnectionFactory object instead of an
ActiveMQConnectionFactory.

The weird thing is that if I deploy the code using the following everything
works fine. Here Spring takes care of creating the jmsFactoryM directly. 

    <bean id="jmsFactory"
class="org.apache.activemq.ActiveMQConnectionFactory" depends-on="broker">
        <property name="brokerURL" value="tcp://localhost:62002"/>
    </bean>

    <bean id="JMSTemplate" class="org.springframework.jms.core.JmsTemplate">
        <property name="connectionFactory">
            <!-- lets wrap in a pool to avoid creating a connection per send
-->
            <bean
               
class="org.springframework.jms.connection.SingleConnectionFactory">
                <property name="targetConnectionFactory" ref="jmsFactory" />
            </bean>
        </property>
    </bean>

Unfortunately, I don't understand the difference between the two spring
setups. The both should end up with and ActiveMQConnectionFactory that is
being passed to the jmsTemplate. Why should it work one way but not the
other?

Thanks,
Pete


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