April 2009 - jbpm-dev - Jboss List Archives

[Design of JBoss jBPM] - Re: jBPM 4 Emails Sync vs Async

by tom.baeyens＠jboss.com

"jbarrez" wrote : Tom, I don't follow you with the global setting. I still think it should be able to be configured on the node itself. | they don't exclude each other. ideally we have them both. in the configuraiton file, the default value can be specified and in the process, the default can be overwritten. but we need to prioritize which one we build first. my take on prioritization would be this: 1) direct sending 2) global configuration setting 3) configuration per usage in the process file "jbarrez" wrote : | Imo, there are cases in which you want the mail directly: eg for handling an exception or a timer times out when waiting for an external system -> send an email to the system admin directly. | | In this case, scheduling it and waiting for the jobExecutor will cause a serious and unacceptable slow-down ... unless the jobExecutor is polling all the time (which is not good for performance). | there is no delay. even inbetween polls. the job executor is notified of new jobs by means of a synchronization. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4223890#4223890 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4223890

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[Design of JBoss jBPM] - Re: jBPM 4 Emails Sync vs Async

by jbarrez

Tom, I don't follow you with the global setting. I still think it should be able to be configured on the node itself. Imo, there are cases in which you want the mail directly: eg for handling an exception or a timer times out when waiting for an external system -> send an email to the system admin directly. In this case, scheduling it and waiting for the jobExecutor will cause a serious and unacceptable slow-down ... unless the jobExecutor is polling all the time (which is not good for performance). For normal mails, I agree they are to be scheduled. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4223887#4223887 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4223887

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[Design of JBoss jBPM] - Re: jBPM 4 Emails Sync vs Async

by tom.baeyens＠jboss.com

sending emails direct or asynchronous should be a global setting. also think about testing. i used dumpster before and that worked great for testing emails. if there is a global configuration property to send emails directly, then no special testing infrastructure should be provided. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4223884#4223884 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4223884

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[Design of JBoss jBPM] - Re: jBPM 4 Emails Sync vs Async

by jbarrez

Agreed, conceptually this is the best choice. Howerver, I would also like to have the synchronous option (as the non-default). Eg. for the sake of demos, this is much nicer to have ;-) But I'm sure there are other use cases. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4223874#4223874 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4223874

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[Design of JBoss jBPM] - Re: jBPM 4 Emails Sync vs Async

by camunda

+1 View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4223872#4223872 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4223872

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[Design of JBoss jBPM] - Re: jBPM 4 Emails Sync vs Async

by kukeltje

Yes, sounds like a good decision to me View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4223842#4223842 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4223842

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[Design of JBoss jBPM] - jBPM 4 Emails Sync vs Async

by bradsdavis

Alejandro and I were discussing the job executor and the sending of emails. It is our theory that it would be best to always schedule emails to be sent rather than try to accomplish the task synchronously. The benefit, which we believe is worth the cost of scheduling and executing asynchronously, is that emailing would then be participating in JTA transactions. In other words... if the process failed after the email node was encountered, the email scheduling would be rolled back, and the email would not be sent -- which in essence is allowing JavaMail never to be called unless the transaction succeeds. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4223841#4223841 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4223841

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[Design of JBoss jBPM] - String Buffer User in jBPM 4

by bradsdavis

I noticed a lot of StringBuffer use in the codebase. I think that in Java 5, all string concatenations are automatically changed at runtime to StringBuilder [which is faster than StringBuffer]. Unless we are worried about thread concurrency in a given class, I don't think we should be using StringBuffer explicitly. See: http://java.sun.com/javase/6/docs/api/java/lang/StringBuilder.html http://peterbacklund.blogspot.com/2007/02/stringbuilder-vs-stringbuffer-a... View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4223385#4223385 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4223385

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[Design of JBoss jBPM] - Re: email templates

by IvanLatysh

Just to clear a few things. Velocity or freemarker will template the message body, when Email Emitter externalize message generation, and you can customize any part of the message, headers, body, sender, etc. And email template can be tested standalone by a designer outside of the server. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4223376#4223376 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4223376

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[Design of JBoss jBPM] - Re: email templates

by IvanLatysh

Have a look at http://code.google.com/p/saxon-extensions/wiki/EmailEmitter. Templates is much easier to use than velocity and well understood by designers. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4223375#4223375 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4223375

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jbpm-dev April 2009