I think we might have to create our own interface which exposes the 1.4 stuff, so we can still compile on 1.3... even if those methods will be no-ops.
Then you can use a proxy created from a factory that invokes onto a version specific impl (throwing exceptions for the methods which are not exposed for that version). Or you can use a bridge object which handles creating the target version specific impl and then proxy all relavent calls to the impl. I think the proxy is easier, since it reduces each call to an invoke()... then it simply has to invoke on the target, and if the target throws MNFE, we throw some vm version mismatch error or something. I would have a look, but I am still trying to get SwiftMQ to work with the JMS RA. Seems like SwiftMQ does not accept TMJOIN, only TMRESUME and TMNOFLAGS. --jason > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:jboss- > [EMAIL PROTECTED]] On Behalf Of David Jencks > Sent: Tuesday, June 18, 2002 4:21 PM > To: [EMAIL PROTECTED] > Subject: Re: [JBoss-dev] JDK 1.4 use in JBoss > > On 2002.06.18 18:56:26 -0400 Jason Dillon wrote: > > It is a trade off, either complex build or fancy proxy-bridge system. I > > think it would be in our interest to figure out a way to do the later, > > as we will always have to deal with this shit. > > > > Better that then releasing a JBoss-Java-1.3 and JBoss-Java-1.4 + all of > > the JBoss variants. That is ridiculous. > > OK, agreed;-) > > Maybe we're talking too hard on this and trying out too little. The > relevant code is implementations of jdbc 3 methods not present in jdbc 2, > that do some checking and forward the call to the (jdbc 3) wrapped object. > This is never going to compile on 1.3 unless we give the compiler the jdbc > 3 interfaces to compile against. However, a 1.4 compiled version with > appropriate class file format ought to work fine on 1.3 (am I right > here?). > If you call an unavailable method, that's your problem. > > david jencks > > > > --jason > > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] [mailto:jboss- > > > [EMAIL PROTECTED]] On Behalf Of David Jencks > > > Sent: Tuesday, June 18, 2002 3:32 PM > > > To: [EMAIL PROTECTED] > > > Subject: Re: [JBoss-dev] JDK 1.4 use in JBoss > > > > > > Doing something fancy for this is ridiculous-- its in a jca adapter > > that > > > wraps a jdbc driver. We should just compile one for each jdk version > > and > > > by default use the one for jdk 1.3. > > > > > > Is it easy to compile both in one run? > > > > > > david jencks > > > > > > On 2002.06.18 17:54:53 -0400 Jason Dillon wrote: > > > > The only way I can think of to do this would be to use proxies, > > where > > > > the IH has a reference to the version specific impl. > > > > > > > > --jason > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > From: [EMAIL PROTECTED] [mailto:jboss- > > > > > [EMAIL PROTECTED]] On Behalf Of David Jencks > > > > > Sent: Tuesday, June 18, 2002 2:05 PM > > > > > To: [EMAIL PROTECTED] > > > > > Subject: Re: [JBoss-dev] JDK 1.4 use in JBoss > > > > > > > > > > I don't see how to compile something on 1.3 that calls a method > > that > > > > is > > > > > not > > > > > in the jdbc 2 spec, but if you have a reference to an example of > > how > > > > to do > > > > > what you suggest I'll take a look. > > > > > > > > > > IMO reflection is worse than a preprocessor. > > > > > > > > > > david jencks > > > > > > > > > > On 2002.06.18 16:34:24 -0400 Jason Dillon wrote: > > > > > > Can this be implemented using a bridge pattern to allow the > > version > > > > > > specific code to vary from VM to VM as specified by the Java > > version > > > > the > > > > > > VM supports? > > > > > > > > > > > > This would be better IMO than use a preprocessor. > > > > > > > > > > > > --jason > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > From: [EMAIL PROTECTED] > > [mailto:jboss- > > > > > > > [EMAIL PROTECTED]] On Behalf Of David > > Jencks > > > > > > > Sent: Tuesday, June 18, 2002 12:42 PM > > > > > > > To: [EMAIL PROTECTED] > > > > > > > Subject: Re: [JBoss-dev] JDK 1.4 use in JBoss > > > > > > > > > > > > > > compile on jdk 1.4, the local wrapper gets the 1.4 jdbc 3 > > > > > > > > > > > > > > compile on jdk 1.3, you get jdbc 2 > > > > > > > > > > > > > > done with ant filtering to put/not put comments around jdbc 3 > > > > code. > > > > > > > > > > > > > > I think the xa stuff doesn't wrap the stuff with jdbc 2 to 3 > > > > changes. > > > > > > > > > > > > > > david jencks > > > > > > > > > > > > > > On 2002.06.18 12:12:30 -0400 Dain Sundstrom wrote: > > > > > > > > How are we handling JDK 1.4 use in JBoss? I want to use > > some of > > > > the > > > > > > new > > > > > > > > JDBC 3.0 APIs, but they are only in JDK 1.4. > > > > > > > > > > > > > > > > We still need to support JDK 1.3 for a long time, so how are > > we > > > > > > handling > > > > > > > > this. > > > > > > > > > > > > > > > > -dain > > > > > > > > > > > > > > > > -- > > > > > > > > xxxxxxxxxxxxxxxxxxxxxxxx > > > > > > > > Dain Sundstrom > > > > > > > > Chief Architect JBossCMP > > > > > > > > JBoss Group, LLC > > > > > > > > xxxxxxxxxxxxxxxxxxxxxxxx > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------ > > > > > > > ---- > > > > > > > > Bringing you mounds of caffeinated joy > > > > > > > > >>> http://thinkgeek.com/sf <<< > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > > > Jboss-development mailing list > > > > > > > > [EMAIL PROTECTED] > > > > > > > > > > https://lists.sourceforge.net/lists/listinfo/jboss-development > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------ > > > > > > -- > > > > > > > -- > > > > > > > Bringing you mounds of caffeinated joy > > > > > > > >>> http://thinkgeek.com/sf <<< > > > > > > > > > > > > > > _______________________________________________ > > > > > > > Jboss-development mailing list > > > > > > > [EMAIL PROTECTED] > > > > > > > https://lists.sourceforge.net/lists/listinfo/jboss-development > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------ > > > > > ---- > > > > > > Bringing you mounds of caffeinated joy > > > > > > >>> http://thinkgeek.com/sf <<< > > > > > > > > > > > > _______________________________________________ > > > > > > Jboss-development mailing list > > > > > > [EMAIL PROTECTED] > > > > > > https://lists.sourceforge.net/lists/listinfo/jboss-development > > > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------ > > > > -- > > > > > -- > > > > > Bringing you mounds of caffeinated joy > > > > > >>> http://thinkgeek.com/sf <<< > > > > > > > > > > _______________________________________________ > > > > > Jboss-development mailing list > > > > > [EMAIL PROTECTED] > > > > > https://lists.sourceforge.net/lists/listinfo/jboss-development > > > > > > > > > > > > > > ------------------------------------------------------------------------ > > > ---- > > > > Bringing you mounds of caffeinated joy > > > > >>> http://thinkgeek.com/sf <<< > > > > > > > > _______________________________________________ > > > > Jboss-development mailing list > > > > [EMAIL PROTECTED] > > > > https://lists.sourceforge.net/lists/listinfo/jboss-development > > > > > > > > > > > > > > > > ------------------------------------------------------------------------ > > -- > > > -- > > > Bringing you mounds of caffeinated joy > > > >>> http://thinkgeek.com/sf <<< > > > > > > _______________________________________________ > > > Jboss-development mailing list > > > [EMAIL PROTECTED] > > > https://lists.sourceforge.net/lists/listinfo/jboss-development > > > > > > ------------------------------------------------------------------------ > ---- > > Bringing you mounds of caffeinated joy > > >>> http://thinkgeek.com/sf <<< > > > > _______________________________________________ > > Jboss-development mailing list > > [EMAIL PROTECTED] > > https://lists.sourceforge.net/lists/listinfo/jboss-development > > > > > > ------------------------------------------------------------------------ -- > -- > Bringing you mounds of caffeinated joy > >>> http://thinkgeek.com/sf <<< > > _______________________________________________ > Jboss-development mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/jboss-development ---------------------------------------------------------------------------- Bringing you mounds of caffeinated joy >>> http://thinkgeek.com/sf <<< _______________________________________________ Jboss-development mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-development
