Re: Dependeny on javax.swing

I have seen that 2.4 faith is uncertain, but this could be a good milestone
to break backward compatibility.

About the contact in Google, I can definitely introduce someone from the
freemarker team to them, but I do not think I can be an effective mediator
(given my limited understanding of the internals). Let me know if someone
wants an introduction.

Jeremy,


On Mon, Dec 28, 2009 at 4:30 AM, Daniel Dekany <[email protected]> wrote:

> Monday, December 28, 2009, 12:07:31 PM, Guo Du wrote:
>
> > 2009/12/28 Daniel Dekany <[email protected]>:
> >>> javax.swing.tree.*, that'd be a start. As I said, something similar
> [snip]
> >> So can that be worked around in FreeMarker (and of so, with how much
> >
> > I have two concern for work around javax.swing.tree.* package reference.
>
> Note that above I referred to the reflection issue.
>
> > 1. Backword compatibility, we don't want break the stable release
> > stream in 2.3.X. Even NORMAL freemarker usecase won't be involved with
> > the swing.
>
> Since Java language is quite static (which I like in general but these
> are the situations where it clearly backfires), the only
> backward-compatible work-around I can imagine is to create a separate
> release for each FreeMarker version that specifically targets GWE. But
> that's not that easy for the *users* as it may sound, as components
> that were not written specifically for GWE may pull in "plain"
> FreeMarker via automated dependency management (Maven, OSGi, etc.). I
> know, at least ideally that can be overridden, but I guess the way we
> upset the least number of users is by breaking the backward compatibly
> promise in this case, and blame Google.
>
> > 2. The simple/safe way to get away from javax.swing.tree.* is to
> > duplicate the used classes/interface insides freemarker such as
> > freemarker.core.tree. It may have copyright concern to the source
> > code.
>
> I didn't look into this, but most certainly we will have to re-write
> these from scratch, only by looking at the javax.swing Java docs.
>
> > P.S. There are only 4 direct reference in freemarker 2.3.15, so not a
> > big deal to just copy them to freemarker :)
> > ./freemarker/template/Template.java:57:      import
> javax.swing.tree.TreePath;
> > ./freemarker/core/FreeMarkerTree.java:56:   import javax.swing.JTree;
> > ./freemarker/core/FreeMarkerTree.java:57:   import
> > javax.swing.tree.DefaultTreeModel;
> > ./freemarker/core/TemplateElement.java:57: import
> javax.swing.tree.TreeNode;
> >
> > -Guo
> >
> >
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>
> --
> Best regards,
>  Daniel Dekany
>
>
>
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-- 
Jeremy Chone
+1 415 699 9912

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