Hello Craig! "Craig R. McClanahan" wrote: > > On Sun, 17 Mar 2002, Lev Assinovsky wrote: > > > That's two separate issues. > > First, the JNDI namespace that Tomcat 4 gives you is indeed read only -- > it is populated from resources that are configured in server.xml, as > described in the Tomcat documentation. In Tomcat 4.0.x, the default > connection pool is Tyrex, but you can use the one from DBCP by declaring > your own "factory" (again, as described in the JNDI HOW-TO docs) class of > "org.apache.commons.dbcp.BasicDataSourceFactory". >
I did this. I and look up in the bean. THe problem is if bean has scope "session" connection pool is created for every session. Seems, we have to have one bean with scope="application". > this, one answer is to not implement SingleThreadModel (avoiding > SingleThreadModel is a good idea anyway), but you should also really look > at doing one-time application initialization in a ServletContextListener > that was introduced in Servlet 2.3 (and therefore supported in Tomcat 4). > Basically, you do the following: > > * Create a class that implements javax.servlet.ServletContextListener > > * Register it with an element in your web.xml file: > <listener> > <listener-class>com.mycompany.mypackage.MyListener</listener-class> > </listener> > > * In the contextInitialized() method, do whatever setup > you need. Typically, you will create objects and store > them as servlet context attributes. This method is > guaranteed to be called exactly once, before any requests > are processed by your application. > > * In the contextDestroyed() method, you can do any cleanup > needed at shutdown time. This method is guaranteed to be > called exactly once, after the last request has been processed. > > More info on the servlet related concepts can be found in the Servlet 2.3 > Specification <http://java.sun.com/products/servlet/download.html>, and > you'll get lots more help on general servlet issues on the TOMCAT-USER > mailing list. > What's the advantage over the bean with the scope=application? Regards, -- Lev Assinovsky Peterlink Web Programmer St. Petersburg, Russia Tel/Fax: +7 812 3275343 197022 ul.Chapigina 7Á E-mail: [EMAIL PROTECTED] -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
