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How to know if a Component in vaadin is disposed?

Jack Hu
9 years ago Feb 11, 2014 5:08am
Christian Schlagkamp
9 years ago Feb 11, 2014 7:11am
Marius Reinwald
9 years ago Feb 11, 2014 10:07am

Depends on what he means with disposed.
When you mean:
1) not attached to a UI anymore: you can check when the Component.detach / DetachListener is called
2) when the variable is set to null: you can just check if(componentA == null)
3) the point when the actual Object in the Stack is removed by the Java Garbage collector: Not really possible to check or at least quite complicated and impractible.

Jack Hu
9 years ago Feb 12, 2014 2:35am