Re: AW: Multithreading FOP ?

2002-05-13 Thread J.Pietschmann
Peter B. West wrote: > Regarding configuration in FOP, it is interesting to note that there are > two different config hierarchies depending on whether the environment is > uniform, as, e.g., in a single thread, or diverse, as in the example > Arnd offered. (That is, a separate process constru

Re: AW: Multithreading FOP ?

2002-04-14 Thread Arnd Beißner
Jeremias Maerki wrote: > As far as I know, you can't assume that, because the statics > are global within the context of a ClassLoader and not the JVM. > Normally though, you have only a simple ClassLoader hierarchy. > In that case your assumption is right. But it isn't as soon as > some complex

Re: AW: Multithreading FOP ?

2002-04-14 Thread Jeremias Maerki
Hi Peter (Comments inline) On 14.04.2002 04:15:25 Peter B. West wrote: > Joerg, > > Thanks, it does answer my questions, and raises a few others. I'm > heartened by this, because what you have described is the inappropriate > use of global data in a multi-threaded context. I'm interested be

Re: AW: Multithreading FOP ?

2002-04-14 Thread Arnd Beißner
Peter B. West wrote: > I like statics. They are smaller and faster; what's not to like? > Before continuing with them, though, I need to make sure that I > understand the problems. Yes to smaller and faster, though if the existance of statics forces you to use synchronization, your mileage ma

RE: AW: Multithreading FOP ?

2002-04-13 Thread Arved Sandstrom
> -Original Message- > From: Peter B. West [mailto:[EMAIL PROTECTED]] > Sent: April 13, 2002 11:15 PM > To: [EMAIL PROTECTED] > Subject: Re: AW: Multithreading FOP ? > [ SNIP ] > It seems to me, of what I have heard so far, that there is no problem > with static

Re: AW: Multithreading FOP ?

2002-04-13 Thread Peter B. West
Joerg, Thanks, it does answer my questions, and raises a few others. I'm heartened by this, because what you have described is the inappropriate use of global data in a multi-threaded context. I'm interested because I like statics. They are smaller and faster; what's not to like? Before c

Re: AW: Multithreading FOP ?

2002-04-13 Thread J.Pietschmann
Peter B. West wrote: > Please indulge my ignorance again. May I assume that it is not possible > to run two main()s in the same VM? Not in the sense you probably mean. > From this discussion so far I have gained much more insight into the > nervousness about statics. Is the problem that ser

Re: AW: Multithreading FOP ?

2002-04-13 Thread Peter B. West
Folks, Please indulge my ignorance again. May I assume that it is not possible to run two main()s in the same VM? From this discussion so far I have gained much more insight into the nervousness about statics. Is the problem that servers want to execute multiple instances of classes within

Re: AW: Multithreading FOP ?

2002-04-12 Thread Arnd Beißner
Peter B. West wrote: > Please excuse my ignorance of these issues, but what mechanisms would >folks expect to use to set per-invocation configurations for FOP? > >>One problem you may run across is that configuration in FOP is help in >>global objects. >>Besides not being thread-safe you will no

Re: AW: Multithreading FOP ?

2002-04-11 Thread Peter B. West
Please excuse my ignorance of these issues, but what mechanisms would folks expect to use to set per-invocation configurations for FOP? Peter Chaumette, Patrick wrote: >Thanks for the infos, > >also got this from Arnd > > >-- >One problem you may run across is that configuratio