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From Ara Abrahamian <>
Subject Re: [myrmidon] Project/Target as Tasks
Date Sun, 21 Apr 2002 04:26:20 GMT
I like that idea! And I think we even need to go further.

For example in xdoclet we have a task and a set of subtasks, the same
is true for ejbjar. subtask is really a task but is run inside an
unmrella task. Now if we could generalize it and let Ant do the job
(calling validate/run on subtasks, etc too) then that would be

And even more, generalize data types too. I mean fileset for example
does something, right? It can be modeled to have a run method and be
runnable to. Inside run() it does the directory scanning and setting up
the set in that method.

Also this way we can really make composition of different tasks
possible (say embed uptodate inside a copy, so that you enhance the
functionality of copy with uptodate checking).

I don't know much about Ant's internal architecture, what do you think
about the above proposal?


--- Peter Donald <> wrote:
> Hi,
> What do you think about disapearing the recognition of Project/Target
> as 
> separate objects? We could make Project/Target actual tasks and thus
> allow 
> much more power when creating the model. It would also mean a vast 
> simplification of our code as our ProjectBuilder just loads
> representation of 
> one task (that happens to hold child tasks). Our TaskEvent system
> would also 
> become simpler and we would not require any implicit information as a
> taskStarting() would be called for the TargetTask which we would
> transform 
> into a targetStarted in ProjectListener?
> A side effect of this would be a simplification of more advanced
> build tools 
> ala Maven that could be built on top of Myrmidon. Basically it means
> they 
> just have to load Mavens project descriptor and register a new task
> for 
> Mavens project model.
> -- 
> Cheers,
> Peter Donald
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