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From "Robert r. Sanders" <robert.sand...@ipov.net>
Subject Re: [REPOST] Classfileset Confusion
Date Tue, 01 Feb 2005 19:05:22 GMT

Rhino wrote:

>Hi everyone,
>
>I've been struggling with classfileset quite a bit in the last couple of
>days and I'm afraid I'm just as confused now as I when I started out. Maybe
>it's time to take a step back and ask a conceptual question or two.
>
>Given a single root class, named mydomain.foo.Foo.class, which resides in a
>package called mydomain.foo that is situated in a directory called foo, can
>I construct a classfileset that contains all of the classes upon which class
>mydomain.foo.Foo.class depends, directly AND indirectly, even if they are in
>different packages and directories? Or is classfilepath only capable of
>finding direct dependents and/or dependents that are in the same package as
>the root class?
>
>Here is my situation explained in a graphical manner.
>
>The main new code that I have written is in directory 'foo' which contains
>two packages, 'mydomain.foo' and 'mydomain.foo.Resources'. Package
>mydomain.foo contains three classes:
>- Foo
>- FooConstants
>- FooPreferences
>Package mydomain.foo.Resources contains a variety of List, Text, and Message
>resource bundles used by class Foo and class FooPreferences.
>
>Class Foo is dependent on all of the items in these two packages. However,
>only the List resource bundles actually involve class files; the other two
>resource bundle types only result in .properties files.
>
>IN ADDITION, class FooPreferences has direct dependencies on these classes:
>- AnimationPanel
>- AudioPanel
>- DigitalCountdownPanel
>- DigitalClockPanel
>all of which are in package mydomain.common AND
>- LocalizationUtils
>- LogUtils
>- PreferenceUtils
>- ReflectionUtils, all of which are in package mydomain.common.utilities.
>All of the packages whose names begin 'mydomain.common' are in a directory
>called 'common'.
>
>IN TURN, these classes have dependencies of their own, all of which are also
>found in packages beginning with 'mydomain.common'. Therefore, they are all
>found in directory 'common' too.
>
>There are a lot of classes in the 'common' directory, many of which are not
>needed by class Foo to do its job, and they are organized into a variety of
>packages, many of which Foo doesn't need, so I was hoping to construct a jar
>that contained only the classes needed by Foo or its dependents. However, I
>would be willing to simplify my requirement to having only the packages
>needed by Foo to do its job, even if that means having several classes in
>the jar that Foo will never use.
>
>I'm finding the documentation about classfileset confusing at best so I
>truly can't tell if I have unrealistic expectations of 'classfileset' or if
>I am just writing my definition incorrectly.
>
>It would really help me if someone could confirm categorically that a
>classfileset will contain all direct AND INDIRECT dependencies of the root
>class, even if they reside in different packages and directories than the
>root class.
>
>If classfileset is capable of recursing to other packages in the same and
>different directories, how do I make that happen? Right now, my classfileset
>definition -
>
><classfileset id="reqdClasses" dir="foo">
>    <root classname="mydomain.foo.Foo"/>
></classfileset>
>
>is returning only these three classes: Foo, FooConstants, and
>FooPreferences, in other words the immediate dependents of the root class
>that are in the same package. The other immediate dependents that are in
>another package in the same directory are NOT being picked up, nor are the
>dependents in other packages under the common directory being picked up.
>
>If it is possible to incorporate all direct and indirect dependencies of my
>root class in my classfileset, even if those depedent classes reside in
>different packages and jars, what do I need to change in my definition to
>make that happen? I have tried everything I could think of without success.
>
>Your assistance with this would be VERY VERY greatly appreciated.
>
>Rhino
>---
>rhino1 AT sympatico DOT ca
>"There are two ways of constructing a software design. One way is to make it
>so simple that there are obviously no deficiencies. And the other way is to
>make it so complicated that there are no obvious deficiencies." - C.A.R.
>Hoare
>
>
>
>  
>
I don't think you can do what you want with the <classfileset>.  I have 
gotten something similar to work using some of the external tools 
(http://ant.apache.org/external.html) - GenJar and pack  have both 
worked for me in the past.


-- 
    Robert r. Sanders
    Chief Technologist
    iPOV
    www.ipov.net


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