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I have a data model model which has a boolean flag connected, and I have a view with several components that I want to enable if model.isConnected() is true and disable if it is not. What is the best way to implement this?
Have your model accept PropertyChangeListeners (perhaps by delegating to a PropertyChangeSupport). Fire a PropertyChangeEvent whenever the
connectedstate changes. Have the components listen to that property change, and change their visual state as appropriate.