I think he was objecting that there was more coding involved. However, components need to be decoupled via interfaces or they really are no longer components.
>From: Chris Harris <[EMAIL PROTECTED]> >Reply-To: [EMAIL PROTECTED] >To: [EMAIL PROTECTED] >Subject: Re: WHY EJB >Date: Thu, 18 Oct 2001 07:38:59 -0700 > >Can't you implement Observer via JMS and Message-Driven >Beans? > >c > >--- Justin Couch <[EMAIL PROTECTED]> wrote: > > Date: Thu, 18 Oct 2001 23:44:01 +1000 > > Reply-to: Justin Couch <[EMAIL PROTECTED]> > > From: Justin Couch <[EMAIL PROTECTED]> > > Organization: The Virtual Light Company > > Subject: Re: [EJB-INT] WHY EJB > > To: [EMAIL PROTECTED] > > > > John Harby wrote: > > > > > > So which component model will satisfy these > > prerequisites? > > > > The command model would be satisfied by proper > > inheritence. > > Unfortunately I can't see observer being ever > > implementable with EJBs - > > basically because you can't register a bunch of listener > > type objects > > with a bean and have the bean call back to those > > listeners. That > > violates the basic principles of what a bean does and how > > it functions > > (ie potentially multiple copies of the one bean instance > > representing > > the one item of data, if we are talking about entity > > beans). > > > > > in Appendix A, support for component-level inheritance > > is cited as > > > an item for future releases. > > > > Yup, but we are talking about today, rather than tomorrow > > :) Given the > > current revision speed, that would be 2-3 years as a > > minimum before we > > coiuld see that sort of functionality. > > > > -- > > Justin Couch > > http://www.vlc.com.au/~justin/ > > Freelance Java Consultant > > http://www.yumetech.com/ > > Author, Java 3D FAQ Maintainer > > http://www.j3d.org/ > > >------------------------------------------------------------------- > > "Humanism is dead. Animals think, feel; so do machines > > now. > > Neither man nor woman is the measure of all things. Every > > organism > > processes data according to its domain, its environment; > > you, with > > all your brains, would be useless in a mouse's > > universe..." > > - Greg > > Bear, Slant > > >------------------------------------------------------------------- > > > > >=========================================================================== > > To unsubscribe, send email to [EMAIL PROTECTED] and > > include in the body > > of the message "signoff EJB-INTEREST". For general help, > > send email to > > [EMAIL PROTECTED] and include in the body of the > > message "help". > > > > >__________________________________________________ >Do You Yahoo!? >Make a great connection at Yahoo! Personals. >http://personals.yahoo.com > >=========================================================================== >To unsubscribe, send email to [EMAIL PROTECTED] and include in the body >of the message "signoff EJB-INTEREST". For general help, send email to >[EMAIL PROTECTED] and include in the body of the message "help". > _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff EJB-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
