Using local firebase database, possible corruption

Question

I need to use a Firebase database, to do this I store a copy of the snapshot, retrieved using onDataChange() function of a listener, inside a global variable.

While I'm using the global copy, if a change happens in the Firebase database from another device, won't the global copy be changed whilst I'm using it and thus corrupting it? If so is there a known solution to this?

Answer 1

The contents of a DataSnapshot object will never change. They are immutable.

If you reassign a global variable with a new snapshot, obviously the global variable will change. But as long as you are working with the snapshot through a local variable, the code that works with the local variable will not see the update.