A I've got a idea. I've added some configuration for the logging System so
maybe this is the problem. So that for my custom log for my beans has two
appenders (default and one custom) and so it prints the informations
twice... Thank you very much for your help.

Regards
/steffen


gnodet wrote:
> 
> This may be a problem in the log system rather than a problem in
> servicemix-bean.
> If only one stack trace is displayed, this certainly means the method
> is only called once.
> 
> On Mon, Oct 6, 2008 at 10:29 AM, steff aka sid
> <[EMAIL PROTECTED]> wrote:
>>
>> Ok, here is the output:
>> INFO  - ClusteringBean                 -
>> [EMAIL PROTECTED]
>> INFO  - ClusteringBean                 -
>> [EMAIL PROTECTED]
>> INFO  - ClusteringBean                 - ClusteringBean initialized!
>> INFO  - ClusteringBean                 - ClusteringBean initialized!
>> java.lang.Throwable
>>        at
>> de.brockhaus-gruppe.beans.ClusteringBean.init(ClusteringBean.java:143)
>>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>        at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>        at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>        at java.lang.reflect.Method.invoke(Method.java:585)
>>        at
>> org.apache.servicemix.bean.support.ReflectionUtils$1.doWith(ReflectionUtils.java:32)
>>        at
>> org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:226)
>>        at
>> org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:203)
>>        at
>> org.apache.servicemix.bean.support.ReflectionUtils.callLifecycleMethod(ReflectionUtils.java:28)
>>        at
>> org.apache.servicemix.bean.BeanEndpoint.start(BeanEndpoint.java:111)
>>        at
>> org.apache.servicemix.common.endpoints.SimpleEndpoint.activate(SimpleEndpoint.java:55)
>>        at
>> org.apache.servicemix.common.ServiceUnit.start(ServiceUnit.java:53)
>>        at
>> org.apache.servicemix.common.BaseServiceUnitManager.start(BaseServiceUnitManager.java:151)
>>        at
>> org.apache.servicemix.jbi.framework.ServiceUnitLifeCycle.start(ServiceUnitLifeCycle.java:103)
>>        at
>> org.apache.servicemix.jbi.framework.ServiceAssemblyLifeCycle.start(ServiceAssemblyLifeCycle.java:132)
>>        at
>> org.apache.servicemix.jbi.framework.DeploymentService.start(DeploymentService.java:378)
>>        at
>> org.apache.servicemix.jbi.framework.AutoDeploymentService.updateServiceAssembly(AutoDeploymentService.java:355)
>>        at
>> org.apache.servicemix.jbi.framework.AutoDeploymentService.updateArchive(AutoDeploymentService.java:256)
>>        at
>> org.apache.servicemix.jbi.framework.AutoDeploymentService.monitorDirectory(AutoDeploymentService.java:664)
>>        at
>> org.apache.servicemix.jbi.framework.AutoDeploymentService.access$800(AutoDeploymentService.java:62)
>>        at
>> org.apache.servicemix.jbi.framework.AutoDeploymentService$1.run(AutoDeploymentService.java:628)
>>        at java.util.TimerThread.mainLoop(Timer.java:512)
>>        at java.util.TimerThread.run(Timer.java:462)
>>
>> for me this looks a little bit strange here is what I added:
>> log.info(this);
>> log.info("ClusteringBean initialized!");
>> new Throwable().printStackTrace();
>>
>> But why do we get only one stacktrace? (BeanID looks like one object but
>> all
>> what I have is processed twice.
>>
>> Regards
>> /Steffen
>>
>>
>> gnodet wrote:
>>>
>>> Looks like a bug.  Could you try adding a
>>>    new Throwable().printStackTrace();
>>>
>>> statement just below your log.info() statement to determine when the
>>> method is called ?
>>>
>>> On Mon, Oct 6, 2008 at 10:11 AM, steff aka sid
>>> <[EMAIL PROTECTED]> wrote:
>>>>
>>>> Hm ok, but do you have an example for that? I currently configure my
>>>> bean
>>>> using xbean configuration file like the following:
>>>>
>>>> <beans xmlns="http://www.springframework.org/schema/beans";
>>>>       xmlns:bean="http://servicemix.apache.org/bean/1.0";
>>>>       xmlns:brockhaus="http://brockhaus-gruppe.de/services/category";
>>>>       xmlns:xsi="http://http://www.w3.org/2001/XMLSchema-instance";
>>>>       xsi:schemaLocation="http://servicemix.apache.org/bean/1.0
>>>> http://servicemix.apache.org/schema/servicemix-bean-3.2.2.xsd
>>>>       http://www.springframework.org/schema/beans
>>>> http://www.springframework.org/schema/beans/spring-beans-2.0.xsd";>
>>>>
>>>>  <bean:endpoint service="brockhaus:categoryClusteringBean"
>>>> endpoint="endpoint" bean="#ClusteringBean"/>
>>>>
>>>>  <bean id="ClusteringBean"
>>>> class="de.brockhaus-gruppe.beans.ClusteringBean"/>
>>>>
>>>> </beans>
>>>>
>>>> Regards
>>>> /Steffen
>>>>
>>>> gnodet wrote:
>>>>>
>>>>> Using servicemix-bean, you can either configure a bean or the bean
>>>>> class.
>>>>> If you configure the bean directly, only that instance will be used to
>>>>> service all requests, whereas if you use the bean class, a new bean
>>>>> will be created for each request.
>>>>>
>>>>> On Mon, Oct 6, 2008 at 9:55 AM, steff aka sid
>>>>> <[EMAIL PROTECTED]> wrote:
>>>>>>
>>>>>> Hi is it possible to have only one instance of an bean component
>>>>>> (like
>>>>>> a
>>>>>> singleton)? I've created serveral beans but all seem to have two
>>>>>> instances.
>>>>>> In example I've got a init()-Method like:
>>>>>>
>>>>>>       @PostConstruct
>>>>>>        public void init() throws IOException, MessagingException {
>>>>>>                if (null == this.context || null == this.channel) {
>>>>>>                        throw new
>>>>>> IllegalStateException("ClusteringBean
>>>>>> not initialized!");
>>>>>>                }
>>>>>>
>>>>>>                log.info("ClusteringBean initialized!");
>>>>>>        }
>>>>>>
>>>>>> When I deploy this component I get:
>>>>>>
>>>>>> INFO  - ClusteringBean                 - ClusteringBean initialized!
>>>>>> INFO  - ClusteringBean                 - ClusteringBean initialized!
>>>>>>
>>>>>> And even each logging output I create in bean will be printed twice.
>>>>>> But
>>>>>> I
>>>>>> only need one instance. The beans are MessageExchangeListeners. Maybe
>>>>>> there
>>>>>> is a better way to create such beans? I've thought about
>>>>>> servicemix-jsr181
>>>>>> component but not sure for that.
>>>>>>
>>>>>> Regards
>>>>>> /steffen
>>>>>>
>>>>>> -----
>>>>>> Brockhaus GmbH
>>>>>> COMPETITIVE THROUGH KNOWLEDGE
>>>>>>
>>>>>> Web:  http://www.brockhaus-gruppe.de www.brockhaus-gruppe.de  /
>>>>>> http://www.brockhaus-group.com www.brockhaus-group.com
>>>>>> --
>>>>>> View this message in context:
>>>>>> http://www.nabble.com/servicemix-bean-singleton-tp19833428p19833428.html
>>>>>> Sent from the ServiceMix - User mailing list archive at Nabble.com.
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Cheers,
>>>>> Guillaume Nodet
>>>>> ------------------------
>>>>> Blog: http://gnodet.blogspot.com/
>>>>> ------------------------
>>>>> Open Source SOA
>>>>> http://open.iona.com
>>>>>
>>>>>
>>>>
>>>>
>>>> -----
>>>> Brockhaus GmbH
>>>> COMPETITIVE THROUGH KNOWLEDGE
>>>>
>>>> Web:  http://www.brockhaus-gruppe.de www.brockhaus-gruppe.de  /
>>>> http://www.brockhaus-group.com www.brockhaus-group.com
>>>> --
>>>> View this message in context:
>>>> http://www.nabble.com/servicemix-bean-singleton-tp19833428p19833614.html
>>>> Sent from the ServiceMix - User mailing list archive at Nabble.com.
>>>>
>>>>
>>>
>>>
>>>
>>> --
>>> Cheers,
>>> Guillaume Nodet
>>> ------------------------
>>> Blog: http://gnodet.blogspot.com/
>>> ------------------------
>>> Open Source SOA
>>> http://open.iona.com
>>>
>>>
>>
>>
>> -----
>> Brockhaus GmbH
>> COMPETITIVE THROUGH KNOWLEDGE
>>
>> Web:  http://www.brockhaus-gruppe.de www.brockhaus-gruppe.de  /
>> http://www.brockhaus-group.com www.brockhaus-group.com
>> --
>> View this message in context:
>> http://www.nabble.com/servicemix-bean-singleton-tp19833428p19833838.html
>> Sent from the ServiceMix - User mailing list archive at Nabble.com.
>>
>>
> 
> 
> 
> -- 
> Cheers,
> Guillaume Nodet
> ------------------------
> Blog: http://gnodet.blogspot.com/
> ------------------------
> Open Source SOA
> http://open.iona.com
> 
> 


-----
Brockhaus GmbH
COMPETITIVE THROUGH KNOWLEDGE

Web:  http://www.brockhaus-gruppe.de www.brockhaus-gruppe.de  / 
http://www.brockhaus-group.com www.brockhaus-group.com 
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