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From Peter Reilly <peter.rei...@corvil.com>
Subject Re: antlib and classloaders
Date Fri, 02 Apr 2004 11:29:45 GMT
Hi,
This sounds nice but does it save that much on

<project name="x" xmlns:lib="antlib:foo.bar">

  <typedef resource="foo/bar/antlib.xml" uri="antlib:foo.bar">
     <classpath>.....</classpath>
  </typedef>

  <lib:mytask ..../> <!-- The antlib loaded using the classloader for
"foo.bar" -->

</project>

Peter


Jose Alberto Fernandez wrote:

>Hi, I have been giving some thought on ways to solve this nagging
>issue of needing to put antlib jars on the lib directory.
>
>We hear over and over people wanting to keep their third party
>libraries out of -lib because they are only for an specific project.
>
>As I see it, our road block has been how to tell in succinct way in the
>buildfile that when loading the namespace "antlib:foo.bar" you should
>use this or that classpath or classloader. 
>
>A simple solution could be to achieve this by name association:
>
>- When ANT tries to find and load the resource for "antlib:foo.bar"
>it will first look for a reference named "foo.bar" representing
>a classloader (or classpath?). If an object of the correct type is
>found, then this classloader will be user for resolving and loadding
>the antlib, otherwise the default classloader will be use, as it is
>today.
>
>So with this in place, one could write things like:
>
><project name="x" xmlns:lib="antlib:foo.bar">
>
>  <classpath id="foo.bar">.....</classpath>
>
>  <lib:mytask ..../> <!-- The antlib loaded using the classloader for
>"foo.bar" -->
>
></project>
>
>Before jumping on a code proposal, does this sound a the right or good
>solution? Does this cover enough of the use cases?
>
>Let me know what you people think.
>
>Jose Aberto
>
>
>
>
>  
>
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