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Notify the Application specific event [message #646905]

Mon, 03 January 2011 01:33

ash

Messages: 142
Registered: July 2010

Senior Member

Hi,

Can any one tell how implement
Event Notification ..... suppose a object is deleted from a view
all other view have to update itself....with out direct ref of the view... example delete event ... if 2 to 3 view displayed the info of the particular object if that object is deleted how will i notify the view to update itself bcoz object info which it is displaying is deleted.... i will implement the notify the application specific event...

Thanks
Ashok

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Re: Notify the Application specific event [message #646921 is a reply to message #646905]

Mon, 03 January 2011 08:09

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

Use the EventAdmin-Service from OSGi.

Tom

Am 03.01.11 02:33, schrieb ash:
> Hi,
>
> Can any one tell how implement Event Notification ..... suppose
> a object is deleted from a view all other view have to update
> itself....with out direct ref of the view... example delete event ...
> if 2 to 3 view displayed the info of the particular object if that
> object is deleted how will i notify the view to update itself bcoz
> object info which it is displaying is deleted.... i will implement the
> notify the application specific event...
>
> Thanks
> Ashok

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Re: Notify the Application specific event [message #646969 is a reply to message #646905]

Mon, 03 January 2011 16:50

ash

Messages: 142
Registered: July 2010

Senior Member

Can u please provide the code snippet or any Url where
i can find the Example please...........

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Re: Notify the Application specific event [message #646973 is a reply to message #646905]

Mon, 03 January 2011 17:35

ash

Messages: 142
Registered: July 2010

Senior Member

Is There any other simple method to implements this ??????

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Re: Notify the Application specific event [message #646999 is a reply to message #646969]

Mon, 03 January 2011 22:18

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

http://tomsondev.bestsolution.at/2011/01/03/enhanced-rcp-how -views-can-communicate/

Tom
Am 03.01.11 17:50, schrieb ash:
> Can u please provide the code snippet or any Url where i can find the
> Example please...........

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Re: Notify the Application specific event [message #647216 is a reply to message #646905]

Wed, 05 January 2011 06:45

ash

Messages: 142
Registered: July 2010

Senior Member

Hi,

I am getting this exception if run the code in Eclipse 3.5 (JDK 1.5)

Caused by: java.lang.NullPointerException: A null service reference is not allowed.
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.g etService(BundleContextImpl.java:660)
at
DeleteJobUpdater.notifyAppEvent(DeleteSubJobUpdater.j ava:15 Cool

DeleteSubJobUpdater$1.run(DeleteSubJobUpdater.java:1 08)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:134)

IF i run the same code in Eclipse helious the code is running fine ... i dont know wht is wrong..... can u please help this is the impl i req....

Nullpointer is comming bcoz ServiceReference ref object is comming nulll....

Thanks
ashok

[Updated on: Wed, 05 January 2011 09:44]

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