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How to save/load Preferences to DB? [message #1272968]

Wed, 19 March 2014 07:39

Marco Feldmann

Messages: 26
Registered: March 2013

Junior Member

Hello,
is it possible to override the save/load-Method of the preferenceStore? I would like to use a DB as backend.

How can I do this? Need I a special IScopeContext or a own PreferencesStore? Can I extend existing classes?

Thanks a lot.

Marco

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Re: How to save/load Preferences to DB? [message #1272991 is a reply to message #1272968]

Wed, 19 March 2014 08:52

Ivan Furnadjiev

Messages: 2426
Registered: July 2009
Location: Sofia, Bulgaria

Senior Member

Hi Marko,
you have to create and register your own SettingStoreFactory. See [1]
and [2] for more details.

[1]
http://help.eclipse.org/kepler/topic/org.eclipse.rap.doc/guide/articles/data-stores.html?cp=52_3_2
[2]
http://help.eclipse.org/kepler/topic/org.eclipse.rap.doc/guide/reference/extension-points/org_eclipse_rap_ui_settingstores.html?cp=52_5_1_6
HTH,
Ivan

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Ivan Furnadjiev

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Re: How to save/load Preferences to DB? [message #1272995 is a reply to message #1272968]

Wed, 19 March 2014 09:05

Arnaud MERGEY

Messages: 243
Registered: March 2010
Location: France

Senior Member

Hello,

In RAP, eclipse preferences are delegated to org.eclipse.rap.rwt.service.SettingStore

so you can achieve that by writing your own SettingStore implementation, that will persist preferences in DB instead of file.
You have also to implement SettingStoreFactory that will provide your SettingStore implementation.
I guess you have a Workbench application so you have to declare your factory using org.eclipse.rap.ui.settingstores extension and launch your application with -Dorg.eclipse.rap.rwt.settingStoreFactory=yourFactoryName

In RWT standalone it is a bit simpler, the SettingStoreFactory can directly be set on the Application

Regards,
Arnaud

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