in the meanwhile use ANT uptodate task http://ant.apache.org/manual/CoreTasks/uptodate.html
Anyone else? M- ----- Original Message ----- From: <[EMAIL PROTECTED]> To: "Maven Users List" <users@maven.apache.org> Sent: Thursday, February 14, 2008 8:30 AM Subject: Re: Compile Delta only > Graham Leggett schrieb: > > Sharon Whipple wrote: > > > >> I am part of team working on large scale web application, > >> As full application build cycle is approx 20 minutes. > >> > >> Is it possible to tell Maven to build changed classes only(change > >> since last > >> build)? > > > > Maven (or more accurately the maven-compile-plugin) already does this > > by default. > > Does it? That would be great, but I haven't seen that documented anywhere. > > Due to the way Java works, it is quite a difficult problem. A file > Foo.java needs to be recompiled not just if it changed, but if any class > that it depends upon (ancestor of any remoteness, member-variable, > local-variable, parameter type) changed. > So AFAIK a full data-dependency analysis needs to be run on every class > to determine whether it needs to be recompiled. An IDE can possibly do > this then cache the results, but without such a cache it is probably > just as slow to do the analysis as to simply compile the source again. > > Regards, Simon > > > --------------------------------------------------------------------- > 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]
