With the introduction of EJB 2.0 Message Driven Beans, you no longer need to start and manage your own threads to do asynchronous processing.
While the answer to the original question is "yes", the recommendation is no. By creating your own threads, you're making the container's job more difficult, especially if you are using container managed resources from those threads.
Example: You create a security context for your thread in order to use a java Connector, or to call an ejb.
If that is not a "container managed" thread, the container may not know how to clean up those resources when either they "time out", or the thread ends.
If you have the option to use MDBs, you can configure the number of container managed threads available to the JMS listener to invoke MDB instances. The transaction management, security, and threading are now the container's responsibility.
-----Original Message-----
From: A mailing list for discussion about Sun Microsystem's Java Servlet
API Technology. [mailto:SERVLET-INTEREST@(protected)
Stølsvik
Sent: Tuesday, May 18, 2004 10:25 AM
To: SERVLET-INTEREST@(protected)
Subject: Re: Thread Question
On Tue, 18 May 2004, Zerbe John W wrote:
| Why do you think you need to start threads in a J2EE application?
This is "-SERVLET- interest".. So I presume he's talking about servlets.
Yes, he is.
The answer to the original question is most probably "yes".
Endre
|
| -----Original Message-----
| From: A mailing list for discussion about Sun Microsystem's Java Servlet
| API Technology. [mailto:SERVLET-INTEREST@(protected)
| Karthikeyan
| Sent: Tuesday, May 18, 2004 4:46 AM
| To: SERVLET-INTEREST@(protected)
| Subject: Thread Question
|
|
| Hi all,
|
| I want to create 10 threads for an Object. If it exceed 10 threads
| then I want to create new instance of that Object.
|
| Is it possible in servlet.
|
| Have a great day.
|
| Karthikeyan B
|
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