Re: Dependeny on javax.swing

Hi Daniel,

Yes, I was talking about the "old 2.4." (
http://freemarker.org/docs-24pre1/versions_2_4_pre1.html). These features
set are very appealing for me, and I would definitely be open to go through
some pain to port my code over.

The biggest feature that would simplify my template code would be the null
support (right now I do some workaround with -1 and ?is_number which is not
very clean).

Also, another one that does not seem to be in the 24pre1 is the null-safe
operator (?. null-safe )
http://mail.openjdk.java.net/pipermail/coin-dev/2009-March/000047.html

Jeremy,


On Mon, Dec 28, 2009 at 8:32 AM, Daniel Dekany <[email protected]> wrote:

> Monday, December 28, 2009, 4:37:26 PM, Jeremy Chone wrote:
>
> > I have seen that 2.4 faith is uncertain, but this could be a good
> > milestone to break backward compatibility.
>
> You mean we should introduce this BC breaking in what is now called
> FreeMarker 2.4? Unfortunately 2.4 is non-BC on several other ways, so
> even if it would be ready for release right now, we still had to
> address the issue for the 2.3.x users.
>
> > 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.
>
> Certainly that will be Attila. He is the one who wrote all the
> BeansWrapper (reflection) stuff.
>
> > 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
>
> --
> Best regards,
>  Daniel Dekany
>
>
>
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-- 
Jeremy Chone
+1 415 699 9912

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