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multiple instances of an eclipse 4 application project [message #1744130]

Thu, 22 September 2016 14:42

Jean-Pascal Laux

Messages: 81
Registered: December 2011

Member

Hello,

I have read a lot of thing about but I don't find if a solution exists.
I have to run my exported project 3 or 4 times on the same computer.

For moment, I always have Workplace is locked message.

Jean-Pascal

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Re: multiple instances of an eclipse 4 application project [message #1744175 is a reply to message #1744130]

Fri, 23 September 2016 07:29

Christoph Keimel

Messages: 482
Registered: December 2010
Location: Germany

Senior Member

Hi Jean-Pascal,

I have used this code in the LifeCycleManager on @PostContextCreate to achieve this:

eventBroker.subscribe(Constants.APPLICATION_LAUNCHED, new EventHandler() {
	@Override
	public void handleEvent(Event event) {
		logger.info("Releasing Application Lock on Data Area ..."); //$NON-NLS-1$
		Platform.getInstanceLocation().release();
		eventBroker.unsubscribe(this);
	}
});

You can use Platform.getInstanceLocation().release() to release the lock. But first you need to wait for the application launch to be finished because the lock has not been set at this point, so you wait for the APPLICATION_LAUNCHED event system with IEventBroker. Constants.APPLICATION_LAUNCHED comes with the efxclipse renderer. If you are using SWT you will need to find the appropriate event.

If you use this, you should be aware that the persisted state of the application (like the saved app model, preferences, etc.) will likely by overwritten by the last application that was saved and will be inconsistent across the applications.

Hope this helps,
Christoph

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