I've done a good bit of research on this, and here's the general impression I get from various different sources:
* EJBs are good when you need very advanced enterprise features like advanced transaction support and a distributed architecture. However, you need to be careful that your EJBs are designed correctly or they can have serious performance problems. * Hibernate is the most popular object-to-relational tool on the market right now. (I plan to use it in my next project.) The one downside is that it uses the LGPL license, which can be a problem on some projects. * Lots of people like OJB, but I heard once it was tricky to set up. If you can't use Hibernate because of the license, this would probably be your second-best choice. (see Joe's email for additional comments). * Torque is a Jakarta DB project that I am currently using. It makes me nervous because it depends on a few nightly builds and other components in the sandbox. * In the future it looks like JDO will be a good choice. It is a persistence mechanism for Java objects. Strictly speaking, it is not an object-to-relational mapping tool *yet* but I heard it will be when JDO 2.0 comes out. Matt ----- Original Message ----- From: "Sasha Borodin" <[EMAIL PROTECTED]> To: "Struts Users Mailing List" <[EMAIL PROTECTED]> Sent: Friday, October 03, 2003 3:09 PM Subject: EJB's vs. Hibernate vs. Torque vs. custom DTO's > I hope I'm not comparing apples and oranges; if I am, please excuse the > ignorance, and slap me upside the head... > > The subject line says it all - I'm investigating the appropriate uses of the > above technologies to move data between databases and objects. Thus far in > my development career, I've relied on my own DTO's - homegrown primitive > lazy loading, caching, etc. > > As I'm starting projects for other companies, I'm realizing that no one > wants home-grown solutions where standards and proven products have already > filled the niche. > > Thus, I'd like to get some opinions as to the level of complexity and > appropriate use of EJBs and other object-relational bridging technologies. > > Who uses what, why, and where? :-) > > -Sasha Borodin > > > --------------------------------------------------------------------- > 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]
