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Posted to dev@servicemix.apache.org by "Ryan Bohn (JIRA)" <ji...@apache.org> on 2008/01/09 16:43:43 UTC
[jira] Commented: (SM-1136) PreDestroy being called for each
exchange when it's not configured that way.
[ https://issues.apache.org/activemq/browse/SM-1136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=41003#action_41003 ]
Ryan Bohn commented on SM-1136:
-------------------------------
Any word on when this patch will be incorporated into ServiceMix?
> PreDestroy being called for each exchange when it's not configured that way.
> ----------------------------------------------------------------------------
>
> Key: SM-1136
> URL: https://issues.apache.org/activemq/browse/SM-1136
> Project: ServiceMix
> Issue Type: Bug
> Components: servicemix-bean
> Affects Versions: 3.2
> Reporter: Ryan Bohn
> Priority: Critical
> Attachments: fixPreDestroy.patch
>
>
> I have a sender bean and a receiver bean, both configured using <bean:endpoint ... bean="#...". The problem is that the PreDestroy method is being called after every MessageExchange is finished.
> According to the documentation:
> Attention: The Bean Endpoint schema allows to set a Bean or a Bean Name. The Bean will create a single instance of the POJO per endpoint whereas the Bean Name will create an instance per request (message exchange).
> I have in my xbean.xml:
> <?xml version="1.0" encoding="UTF-8"?>
> <beans xmlns:bean="http://servicemix.apache.org/bean/1.0"
> xmlns:example="http://servicemix.apache.org/example">
> <bean:endpoint service="example:sender" endpoint="senderEndpoint" bean="#sender"/>
> <bean:endpoint service="example:receiver" endpoint="receiverEndpoint" bean="#receiver"/>
> <bean id="sender" class="example.Sender">
> <property name="target" value="example:receiver"/>
> </bean>
>
> <bean id="receiver" class="example.Receiver">
> </bean>
> </beans>
> The receiver simply implements MessageExchangeListener.
> The PostConstruct and PreDestroy only gets called once on the sender
> The PostConstruct only gets called once on the receiver
> However, the PreDestroy gets called on the receiver for each request.
> I noticed in BeanEndpoint, there is the following method:
> protected void checkEndOfRequest(Request request, Object corId) {
> if (request.getExchange().getStatus() != ExchangeStatus.ACTIVE) {
> ReflectionUtils.callLifecycleMethod(request.getBean(), PreDestroy.class);
> //request.setBean(null);
> //request.setExchange(null);
> requests.remove(corId);
> }
> }
> It doesn't look like this class pays any attention to whether the bean is supposed to be a single instance of an instance-per-request, which is probably the cause of the problem.
> If you need me to attach an example, please let me know.
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