Hi,
On 26-Feb-08, at 11:40 AM, 呉傑 wrote:
> Hi Binod, Dev Team,
>
> I have the following questions about EJB Timer Service.
> 1, Is EJB Timer Service initialized when DAS startup or Cluster
> startup.
Yes. It is initialized.
>
> 2, When EJB app is undeployed which component is charge of stopping
> the corresponding
> timer service and deleting the related data from DB.
> about the 2nd question I eager to know how the timer service is
> stopped and related
> data is deleted in the cluster mode with multi instances.
> #I found that EJBTimerService#destroyTimers(long containerId) is
> charge of doing that,
> and EJB container invokes EJBTimerService#destroyTimers(long
> containerId).
I will let some on the EJB container team to answer this question.
- Binod.
>
>
> I hope for your help.
> Thanks
> - Wu.
>
> Binod さんは書きました:
>> Hi Tang,
>>
>> On 26-Feb-08, at 9:32 AM, Tang Yong wrote:
>>
>>> Hi Binod,Dev Team,
>>>
>>> I come from China and work on the AppServer Development related.
>>>
>>> I see the Binod's excited paper(http://weblogs.java.net/blog/binod/archive/2005/09/lazy_initializa.html
>>> ),
>>> and understand a lot related ondemand startup.
>>>
>>> However, I have a few problems and wish you can help me resolve
>>> them, as follows:
>>> 1 I find that in "EjbServiceGroup.java", there are the following
>>> comment:
>>>
>>> "Represents the group services needed by EJBs. The main
>>> components
>>> of this servicegroup are ORB, JTS and system apps that use
>>> EJBs."
>>>
>>> then, what does the "system apps that use EJBs" mean?including
>>> EJBTimerBean?
>>
>> Yes. TimerBean and MEJB.
>>
>>>
>>>
>>> 2 When appserver starts up, does the EJB Container need to be
>>> initialized? If yes, initializes which
>>> service related EJB Container ?
>>
>> Only when EJBs are deployed (or accessed) the EJB container need to
>> be initialized.
>>
>> - Binod.
>>
>>>
>>>
>>> 3 Are there some deep material about the internal of Appserver's
>>> LifeCycle?
>>>
>>>
>>> Thanks!
>>>
>>> Best Regard!
>>>
>>> --
>>> ---------------------------------------------------
>>> Tang Yong
>>> Development Dept.I
>>> Nanjing Fujitsu Nanda Software Tech. Co., Ltd.(FNST)
>>> 8/F., Civil Defense Building, No.189 Guangzhou Road,
>>> Nanjing, 210029, China
>>> TEL: +86+25-86630566-917
>>> COINS: 79955-917
>>> FAX: +86+25-83317685
>>> MAIL: tangyong_at_cn.fujitsu.com
>>> ---------------------------------------------------
>>
>>
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>>
>>
>
>
> --
> Regards
> Wu Jie
> --------------------------------------------------
> Wu Jie
> Development Dept.II
> Nanjing Fujitsu Nanda Software Tech. Co., Ltd.(FNST)
> 8/F., Civil Defense Building, No.189 Guangzhou Road,
> Nanjing, 210029, China
> TEL: +86+25-86630566-918 COINS: 79955-918
> FAX: +86+25-83317685
> MAIL: wujie_at_cn.fujitsu.com
> --------------------------------------------------
>
>
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