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Design/Architectual question perspective | views [message #1202427]

Fri, 22 November 2013 06:21

Jack Kilian

Messages: 40
Registered: March 2012

Member

Hi,

what is the best architectual way for the following problem:

I have a persective with e.g. 5 views. Some of that views are used in other perpectives with other views. So - I have a variouse combination of views in perspectives - the idea behind eclipse Wink

When I need data or functions from view A in view B I request the view A in view B with a call like:

IWorkbenchPage pg = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
View_A view_a = (View_A) pg.showView(View_A.ID_VIEW);
...

But then I wire this to views to each other. In an other perspective this view B is available, but not view A. Whats the best way from an archtiectual point of view to avoid this or in other words to decouple the views that the code of each view is more independant from each other?

best regards
jk

[Updated on: Fri, 22 November 2013 06:26]

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Re: Design/Architectual question perspective | views [message #1208847 is a reply to message #1202427]

Mon, 25 November 2013 07:54

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

On 22.11.13 07:21, Jack Kilian wrote:
> Hi,
>
> what is the best architectual way for the following problem:
>
> I have a persective with e.g. 5 views. Some of that views are used in
> other perpectives with other views. So - I have a variouse combination
> of views in perspectives - the idea behind eclipse ;)
>
> When I need data or functions from view A in view B I request the view A
> in view B with a call like:
>
>
> IWorkbenchPage pg =
> PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
> View_A view_a = (View_A) pg.showView(View_A.ID_VIEW);
> ..
>
>
> But then I wire this to views to each other. In an other perspective
> this view B is available, but not view A. Whats the best way from an
> archtiectual point of view to avoid this or in other words to decouple
> the views that the code of a view is more independant from each other?
>
> best regards
> jk

Use an event broker == publish/subscribe pattern.

See:
http://tomsondev.bestsolution.at/2011/01/03/enhanced-rcp-how-views-can-communicate/
http://tomsondev.bestsolution.at/2011/02/07/enhanced-rcp-how-views-can-communicate-the-e4-way/

Tom

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Re: Design/Architectual question perspective | views [message #1211370 is a reply to message #1208847]

Tue, 26 November 2013 11:57

Jack Kilian

Messages: 40
Registered: March 2012

Member

Hi,

ok...but only possible in e4?

My application is based on e3...with e.g. 30 views...I want to remove the depdendencies within this app.

best regards to austria Wink

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Re: Design/Architectual question perspective | views [message #1211517 is a reply to message #1211370]

Tue, 26 November 2013 13:29

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

No - the first blog shows a pure OSGi-implementation which is available
in fairly any 3.x version as well.

Tom

On 26.11.13 12:57, Jack Kilian wrote:
> Hi,
>
> ok...but only possible in e4?
>
> My application is based on e3...with e.g. 30 views...I want to remove
> the depdendencies within this app.
>
> best regards to austria ;)

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