Quoting e-denton Java Programmer <[EMAIL PROTECTED]>: > I neglected to mention that my servlet container can be passivated on my > virtual host. So, all objects must be serializable and I can't use static > variables. >
Yet another reason to look it up every time rather than caching it. Craig > ----- Original Message ----- > From: "Vic Cekvenich" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Monday, December 22, 2003 8:31 AM > Subject: Re: How find DataSource? > > > > I put mine in a static block of the base DAO. (static as in once per > > class, and all DAO's extend my base DAO). > > > > > > .V > > > > > > e-denton Java Programmer wrote: > > > > > Merry Christmas, > > > > > > Wow, I finally connected to my data source! Now, I want to put the code > > > somewhere it will be executed only once, and save the DataSource object > > > where Actions, beans, etc. can get at it. That way, I don't have to > perform > > > the lookup all the time. > > > > > > Any suggestions on where to put the one time setup code, and where to > save > > > the DataSource object reference (in the application?). > > > > > > Thanks again, > > > > > > Will > > > > > > ----- Original Message ----- > > > From: "Vic Cekvenich" <[EMAIL PROTECTED]> > > > To: <[EMAIL PROTECTED]> > > > Sent: Saturday, December 20, 2003 12:14 PM > > > Subject: Re: How find DataSource? > > > > > > > > > > > >>See sample source code section here: > > >> > > > > > > > http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource-examples-howto.html > > > > > >>Ex: > > >>Context ctx = new InitialContext(); > > >> if(ctx == null ) > > >> throw new Exception("Boom - No Context"); > > >> > > >> DataSource ds = > > >> (DataSource)ctx.lookup( > > >> "java:comp/env/jdbc/TestDB"); > > >> > > >> > > >>Of course what you do with the data source depends on your DAO > > >>implementataion (iBatis, Hibrenate, etc.) > > >> > > >>.V > > >> > > >> > > >>hylepc wrote: > > >> > > >>>Hi, > > >>> > > >>>From a Data Acess Object (DAO), I need to access a DataSource (like > > >>>getServletContext().getAttribute (Globals.DATA_SOURCE_KEY)). But, I > > > > > > don't > > > > > >>>have access to the servlet variable. > > >>> > > >>>What is the proper way to get the DataSource from a DAO which is called > > > > > > by > > > > > >>>an Action but doesn't extend Action? > > >>> > > >>>Thanks, > > >>> > > >>>Will > > >> > > >> > > >>--------------------------------------------------------------------- > > >>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] > > > > > > > --------------------------------------------------------------------- > 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]
