Thats what i needed to read! I guess it too. Regards, Euclides. -----Mensagem original----- De: Martin Jacobson [mailto:[EMAIL PROTECTED]] Enviada em: terca-feira, 11 de fevereiro de 2003 06:12 Para: Tomcat Users List Assunto: Re: Little system X Great architecture
Jose Euclides da Silva Junior - DATAPREVRJ wrote: > Hi, > i need to code a system in which there is no many business rules, but i need > data persistence in a database. Even if this system will have an enterprise > users scope, should i use EJB technology? What about only servlets/jsp? > Regards, > Euclides. > The application I am currently developing seems similar to yours: I have persistant data in a relational database, with a Web-based client tier. I have abstracted the SQL-specific stuff into separate classes (this means I can easily switch between MySQL [development] & Oracle [production]. Business-level logic (including transactions) is in a next layer of code, while the servlets do the presentation-level work only. I don't use JSPs, as I found that using an HTML template engine (Velocity) provides a cleaner separation of the HTML generation. I did consider EJBs initially, but rapidly came to the conclusion that my app was *way* too small - the overheads are so great that you need a substantial application before you reach break even. HTH Martin --------------------------------------------------------------------- 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]
