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Re: [gmf-dev] goal: one GMF editor for two models
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It is a model that represents mappings from tabular data to XML
element/attributes. One top-level model is a specific mapping of
data, a crosswalk. It shows the data columns on one side and let's
the user drop widgets that represent XML on the canvas and then link
them with data, configure default values, etc.. The other model is
dictionary, which is a set of mappings, except in the dictionary
there is no data. Instead the XML widgets in each mapping are
connected to "ports". Users will reuse such mapping later, linking
these input ports to their data. (In effect the dictionary is a set
of encapsulated mappings.)
I've been doing some tweaks to the figures, making ports responsive
to their connections, overriding certain pop-up behaviors and
handling the impact of nested XML child references on
request/command edit policy. To be clear, the model does not deal in
the specifics of any XML schema, but it does get set up with an
EClass that is the output type.
For the moment I'm exploring the option (2) below. I can live
without the pop-up menus. I was thinking that I could have some
custom save behavior that would strip out the canvas node. I haven't
delved into custom templates yet, but it may be time for me to pick
up some of that.
A diagram is attached.
thanks for your help,
Greg
On 04/30/2012 07:47 AM, Michael Golubev wrote:
Hello,
Sorry, I am not sure I understand your use case, may be the
emfatic-like sketch of both ecore's would help here. I am trying
to understand how much commons do your crosswalk and dictionary
elements share.
Without looking at the details, I may only say that the
intended way of using GMF-T would be to extract the
customizations into the custom templates and then generate the
customized pieces into the both diagrams.
What kind of customizations we are talking about?
Regards,
--
![]()
Michael
"Borlander" Golubev
Eclipse Committer (GMF, UML2Tools)
at Montages Think Tank, Prague,
Czech Republic
1165/1
Dvorecka, 14700, Prague-4 Podoli
On Thu, Apr 26, 2012 at 5:57 PM,
Gregory Jansen <count0@xxxxxxxxxxxxx>
wrote:
Hi there,
I am building some visual metadata tools for librarians and
digital
curation. I have a model for mapping tabular data to XML
(crosswalk
model). I also have a model in the same package for defining
data
dictionaries, i.e. common mappings (dictionary model). The
GMF code
for the crosswalk editor is generated and tweaked with
various helpers
and advice. Instead of pursuing a parallel track and
generating a
whole separate editor for the dictionary model and
duplicating all
those customizations, which are largely identical, I'd
really like to
use the same editor for both..
A couple strategies come to mind:
1) Tried to map the canvas to a super-type. This doesn't
work b/c the
top-level nodes have to be features in the canvas domain
model or it's
super-types.
2) Make a type to contain 1 of either dictionary and
crosswalk. Then create a figure that grabs the whole canvas
for the single top-level node. I'm pretty sure this will
mess up the pop-up balloons.
3) Same as (2), but don't grab the whole canvas. Instead
place single top-level node somewhere on the canvas, maybe
as a label. Then find a way to use the canvas as a content
pane or place children outside the parent. Any way to do
this?
Is there a better way?
many thanks,
Greg
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