Re: Informations about prevalence
Klaus Wuestefeld <[email protected]>
| Newsgroups | gmane.comp.java.prevayler |
|---|---|
| Message-ID | <[email protected]> |
> Do you think prevalence can be seen as agile ? Yes. The prevalence architecture is much simpler and allows greater freedom of choice for data structures and algorithms. > Do you think the diffusion of agile methods could give a boost > to prevalence ? Yes. Agile teams are more open to new ways of thinking about architecture. > Thanks a lot for your answer ! > > What caracteristics of prevalence can be seen as agile ? > Could you detail ? Extremely easy set-up and deploy. No object-relational mismatch. http://www.codinghorror.com/blog/2006/06/object-relational-mapping-is-the-vietnam-of-computer-science.html > I found this thesis. > http://error0.altervista.org/university/tesi%20magistrale/thesis.pdf > Have you ever heard about that before? No, I had not. It is a very nice roundup of in-memory databases union Prevayler. I have copied Valerio, the author, in this email. > Page 158, he says some interesting things about PICO4 and HSQLBD. > What do you thing about that ? Is prevalence better than this > new notions? HSQLBD is relational. Nobody uses the relational paradigm if not forced to use it for persistence purposes. Nobody in there right mind writes a transient app, such as a browser, a router or a game, keeping its data in relational tables in RAM and accessing it through SQL, do they? PICO4 produced better transaction throughput numbers than Prevayler because, from what the thesis says, it does not physically sync transactions to disk. So if one has non-important transactions, PICO4 is a good choice. Turning off Prevayler's physical sync to disk yields similar results. See you, Klaus. ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ To unsubscribe go to the end of this page: http://lists.sourceforge.net/lists/listinfo/prevayler-discussion _______________________________________________ "Databases in Memoriam" -- http://www.prevayler.org