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From "Erik Hatcher" <jakarta-...@ehatchersolutions.com>
Subject Re: conditional dependency logic based "uptodate"
Date Thu, 17 Jan 2002 00:27:10 GMT
The idea is that if its a Java program that it really should be wrapped as
an Ant task.  I'd encourage you to explore this and push the dependency
checking into the task.

    Erik


----- Original Message -----
From: "prasen" <prasen@bea.com>
To: "Ant Users List" <ant-user@jakarta.apache.org>
Sent: Wednesday, January 16, 2002 4:11 PM
Subject: Re: conditional dependency logic based "uptodate"


>
> Thanks Erik. Yep it does what I want. But I wished I didnt had to boot
> separate JVMs every time I had to run a javaclass which is what ant is
> supposed to eliminate :-(
>
> Erik Hatcher wrote:
> >
> > Again, have a look at <apply>.  It does what you are asking for running
> > command-line programs and checking dependencies and such.
> >
> > ----- Original Message -----
> > From: "prasen" <prasen@bea.com>
> > To: "Ant Users List" <ant-user@jakarta.apache.org>; "Ant Developers
List"
> > <ant-dev@jakarta.apache.org>
> > Sent: Wednesday, January 16, 2002 1:24 PM
> > Subject: Re: conditional dependency logic based "uptodate"
> >
> > > Actually I need it not only for rmic but other things too. For example
> > > we have an abstract class  generation tool, which takes an interface
and
> > > creates a default implementaion. I have an dptodate target:
> > >
> > >   <target name="determine-rmic">
> > >     <uptodate property="rmic.notRequired">
> > >       <srcfiles dir="${src}">
> > >         <include name="com/mycompany/interface/*.java"/>
> > >       </srcfiles>
> > >       <mapper type="glob" from="*.java" to="${classdir}/*_Impl.java"/>
> > >     </uptodate>
> > >   </target>
> > >
> > > and I want something like this:
> > >   <target name="make-rmic" depends="determine-rmic"
> > > unless="rmic.notRequired">
> > >     <java classname="com.mycompany.GenerateImplClass" fork="true"
> > > failonerror="true">
> > >        <arg line="${outdateInterfaceFileName}"/>
> > >     </java>
> > >   </target>
> > >
> > >
> > > I dont want to run this generation tool on all the files, but ONLY the
> > > outdated files.It is so easy to do this in "make". Does this feature
> > > already exist or if not is there any plan to intriduce this in future
> > > releases ? I dont want to compile everything, when only one
> > > interfacefile has changed.
> > >
> > > thanks,
> > > prasen
> > >
> > >
> > > Stefan Bodewig wrote:
> > > >
> > > > On Tue, 15 Jan 2002, <prasen@bea.com> wrote:
> > > > >   I want to selectively invoke rmic only on outdated files. How do
I
> > > > >   do that in ant ? For example:
> > > >
> > > > Which is what Ant's built-in rmic task does.  Why do you use myrmic
> > > > instead of the built-in task?  Maybe it can be rewritten as yet
> > > > another implementation of the rmic task (it is a facade backed by
> > > > Sun's, Weblogic's and Kaffe's implementation ATM).
> > > >
> > > > Stefan
> > > >
> > > > --
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