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POSpring - How to choose properties in dependent bean?
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2013-09-23T12:59:03.787
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Suppose, I have the following beans in my Spring xml: <pre><code><bean id="mqConnectionFactory" class="com.ibm.mq.jms.MQQueueConnectionFactory"> <property name="hostName" value="${host}"/> <property name="port" value="${mq.port}"/> </bean> <bean id="jmsQueueConnectionFactory" class="org.springframework.jms.connection.SingleConnectionFactory"> <property name="targetConnectionFactory" ref="mqConnectionFactory"/> </bean> <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate"> <property name="connectionFactory" ref="jmsQueueConnectionFactory"/> </bean> </code></pre> I need to send messages to different hosts, but I don't want define several connection factory beans. It would be great to specify host something like this: <pre><code>class A { @Autowired(host="host1") private JmsTemplate jmsTemplate; } class B { @Autowired(host="host2") private JmsTemplate jmsTemplate; } </code></pre> <h2>Update:</h2> I can create the following config: <pre><code><bean id="mqConnectionFactory1" class="com.ibm.mq.jms.MQQueueConnectionFactory"> <property name="hostName" value="${host1}"/> <property name="port" value="${mq.port}"/> </bean> <bean id="mqConnectionFactory2" class="com.ibm.mq.jms.MQQueueConnectionFactory"> <property name="hostName" value="${host2}"/> <property name="port" value="${mq.port}"/> </bean> <bean id="jmsQueueConnectionFactory1" class="org.springframework.jms.connection.SingleConnectionFactory"> <property name="targetConnectionFactory" ref="mqConnectionFactory1"/> </bean> <bean id="jmsQueueConnectionFactory2" class="org.springframework.jms.connection.SingleConnectionFactory"> <property name="targetConnectionFactory" ref="mqConnectionFactory2"/> </bean> <bean id="jmsTemplate1" class="org.springframework.jms.core.JmsTemplate"> <property name="connectionFactory" ref="jmsQueueConnectionFactory1"/> </bean> <bean id="jmsTemplate2" class="org.springframework.jms.core.JmsTemplate"> <property name="connectionFactory" ref="jmsQueueConnectionFactory2"/> </bean> </code></pre> Then: <pre><code>class A { @Resource("jmsTemplate1") private JmsTemplate jmsTemplate; } class B { @Resource("jmsTemplate2") private JmsTemplate jmsTemplate; } </code></pre> It seems wrong and complicated. The question would be to reduce this config and pass host as parameter. In other words I want to tell Spring: "Create me jmsTemplate and set property host of connectionFactory to this value."
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<java><spring><inversion-of-control>
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Spring - How to choose properties in dependent bean?
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