Liu, How will what you write relate to existing pattern books on EJB (eg http://www.theserverside.com/books/EJBDesignPatterns/index.jsp) - that book breaks patterns into groups "EJB Layer Architectural patterns", "Inter tier Data transfer patterns", "Transaction and persistence patterns", "Client side ejb interaction patterns", and "PK generation patterns".
If you're not already aware of this work, it might be worth overviewing it to see how this relates to your concerns. cheers dim ----- Original Message ----- From: "Liu Wudong" <[EMAIL PROTECTED]> To: "'Douglas C. Schmidt'" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Sunday, September 22, 2002 10:15 AM Subject: 答复: Pattern language and framework > I'm very glad to receive from u. > In fact, I'm considering writing a paper on that topic. > > I think there should be a clear way or mechanisms or, as you say, guide > to generate a framework from a pattern language. So I want to clarify > those mechanisms in this paper. This is my main concern. > If possible, I also want to apply some formal or semi-formal method in > the conversion. > > Second, specifically, I want to work on the ground of EJB patterns, for > there are lots of EJB pattern existed now. But they are not very toughly > related to each other. I want to reorganize them as an organic > integration, and then apply the mechanisms of conversation to generate a > framework of EJB. > > I hope this explanation is clear. Do you think what I plan is worth of > time to do, and is possible to reach an end? > Thank your kindness again. > > ------------------------------------------------------------------------ > ------------------------------------------------------------------------ > -------------------------------------------------- > Hi Liu, > > > Recently I am considering a paper about pattern language and > > framework, their relationship, and the conversion from pattern > > language to framework. > > Are you "considering writing a paper" or "considering reading a paper" > on this topic? > > > Is the conversion possible? > > Sure -- depending of course on what you mean by "conversion." If you > mean "can you automatically generate a framework from a pattern > language" the answer is probably "no" since pattern languages aren't > generally specific enough to be used for automated software > translation. If you mean "can you use a pattern language to guide the > development of a framework" the answer is "yes." In fact, you could > argue that all frameworks (or at least all good frameworks) are > manifestations of one or more pattern languages (although not all of > these pattern languages are documented in the literature yet). > > > In there anyone can give me some suggestion or some material that I > > can refer to? > > There are a number of good papers that have appeared on this topic > over the years in places like Communications of the ACM (CACM) and > IEEE Software. For example, Ralph Johnson wrote a good paper entitled > "Frameworks = Patterns + Components" in the October 1997 issue of > CACM. A "goole search" should reveal online versions of many of these > papers. > > Depending on what domain you're working in, you might also want to > check out the POSA2 <www.cs.wustl.edu/~schmidt/POSA/> and C++NP > <www.cs.wustl.edu/~schmidt/ACE/> books. The POSA2 book describes a > pattern language for concurrent and networked OO middleware that is > implemented in the ACE frameworks described in the C++NP books. > In addition, The ACE ORB (TAO) is also implemented using the POSA2 > pattern language. Please see > > http://www.cs.wustl.edu/~schmidt/PDF/ORB-patterns.pdf > http://www.cs.wustl.edu/~schmidt/TAO.html > > for more info. > > Take care, > > Doug > > =========================================================================== 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".
