Difficult to have a "standard" there since there isn't even a standard Container interface...
----- Original Message ----- From: "Yannick Menager" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, October 08, 2003 2:08 PM Subject: Re: Startable doesn't has a isRunning() interface ? > The container would generally not call isRunning().... But for example > if I have an admin console, i would like it to be able to be informed of > the state of each component. And I would like it to be a *standard* way > for any Startable Component... be it using a isRunning() type of > function, or using an event-based system, as long as it's standard :) > > Jonathan Hawkes wrote: > > In the current specification, it is fairly straightforward to implement an > > Avalon container. When would you suggest the container poll this new > > isRunning method? It would be preferable to have the component notify the > > container if it shut itself down. However, then you run the risk of > > perverting IOC. > > > > The Startable interface is simply a lifecycle interface that stipulates a > > contract with the container. The container does not really care what the > > start() and stop() methods actually do -- or even what they start or stop. > > The contract is simple, and I am opposed to complicating it. > > > > Components are given the resources to manage themselves (that is the point). > > > > ----- Original Message ----- > > From: "Yannick Menager" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Wednesday, October 08, 2003 1:22 PM > > Subject: Re: Startable doesn't has a isRunning() interface ? > > > > > > > >>But that way you're putting a risk that the container might be out of > >>sync with the real state of the component. All that to save having an > >>extra function. I would think the downsides are bigger than the cost of > >>having an extra function to check the state of the component. Otherwise > >>most people will implement that function but it won't be standard, > >>reducing potential reusability, and causing pains to people who want to > >>incorporate dynamic administration capabilities in the container. > >> > >>Jonathan Hawkes wrote: > >> > >>>Yes. An isRunning() method would not be useful to the container. The > >>>container knows whether the startable isRunning or not (ie: it has > > > > called > > > >>>start() and not stop() ). > >>> > >>>----- Original Message ----- > >>>From: "Yannick Menager" <[EMAIL PROTECTED]> > >>>To: <[EMAIL PROTECTED]> > >>>Sent: Wednesday, October 08, 2003 10:17 AM > >>>Subject: Startable doesn't has a isRunning() interface ? > >>> > >>> > >>> > >>> > >>>>Is there any reason Startable doesn't has a isRunning() ( or something > >>>>like that ) interface ? > >>>> > >>>> > >>>> > >>>>--------------------------------------------------------------------- > >>>>To unsubscribe, e-mail: [EMAIL PROTECTED] > >>>>For additional commands, e-mail: [EMAIL PROTECTED] > >>>> > >>>> > >> > >> > >> > >>--------------------------------------------------------------------- > >>To unsubscribe, e-mail: [EMAIL PROTECTED] > >>For additional commands, e-mail: [EMAIL PROTECTED] > >> > >> > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
