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I workink with Vaadin now. It is support push-server technology.

I need to create a handler when the push is not successful (connection to server lost). I found how do it for Ajax technology here, but for push I can't find anything.

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1 Answers1

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This is the answer of one expert of Vaadin:

That is a relatively advanced matter.

Vaadin is a server-side framework, merely a big server-side extension to client-side GWT framework. Therefore the following is not possible to do in Vaadin, but only in GWT whose minimum knowledge is then required.

The official Vaadin TouchKit addon (Vaadin GUI for mobile) already includes such an offline functionality, though it does not use cookies as storage (source code on GitHub).

Anton Nikonienkov

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