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Re: Read (and Visualize)

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  To: comp.lang.java.databases,
On 18 Mai, 15:53, Martin Gregorie <mar...@see.sig.for.address> wrote:

> [...] showing just the table names from a decent sized schema and
> disentangling it so not to many relationship lines cross could be
> quite difficult.

Yes, you are addressing a very important point. Finding a framework
for just creating a visualization somehow is one thing. Getting a
neatly layouted schema representation is way more complex, if we
assume this framework doesn't offer ready to use layout algorithms
(layouter) right out of the box.

> Are you familiar with the Embarcadero (http://www.embarcadero.com)
> tools?

No, not yet, but a graphical representation and a layout like e.g.

http://www.embarcadero.com/news/product_photos/ERStudioOverview_HiRes.jpg

would be quite perfect.

> If you may find that automatically producing a schema diagram that isn't
> a tangled mess is sufficiently difficult that the way to go is to let
> the user drag objects around to make the diagram readable and then save
> the result.

This is quite a good solution if no layouter is available or the
effort of writing one, would be overkill. I think the approach you
describe should do it.

Now, the big question is: What framework should I base my tool
experiments on? Which framework is the current "state of the art" for
developing a design environment dealing with database schemas? Using
the Eclipse Modeling Framework (EMF) and start from scratch? Or are
they any sophisticated frameworks available, which could reduce the
development effort?


Regards,
Max

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Read (and Visualize) Data "send.me.all.email" <send.me.all.email@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
  Re: Read (and Visualize) "Christian" <christian@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
    Re: Read (and Visualize) "CK" <ck@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
      Re: Read (and Visualize) "send.me.all.email" <send.me.all.email@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
    Re: Read (and Visualize) "send.me.all.email" <send.me.all.email@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
      Re: Read (and Visualize) "Martin Gregorie" <martin.gregorie@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
        Re: Read (and Visualize) "send.me.all.email" <send.me.all.email@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
      Re: Read (and Visualize) "Mishagam" <mishagam@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
        Re: Read (and Visualize) "send.me.all.email" <send.me.all.email@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
          Re: Read (and Visualize) "Lew" <lew@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
            Re: Read (and Visualize) "send.me.all.email" <send.me.all.email@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
              Re: Read (and Visualize) "Lew" <lew@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000
  Re: Read (and Visualize) "Sualeh Fatehi" <sualeh.fatehi@THRWHITE.remove-dii-this> - 2011-04-27 15:34 +0000

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