@Override
public Memento save(ResourceSetCollector resourceSetCollector) {
Memento state = new Memento();
state.setValue(MEMENTO_DATE, getCenterVisibleDate());
state.setValue(MEMENTO_ZOOM_PREFIX + 0, getMainBandZoomIndex());
state.setValue(MEMENTO_ZOOM_PREFIX + 1, getOverviewBandZoomIndex());
return state;
}
@Override
public void restore(
Memento state,
PersistableRestorationService restorationService,
ResourceSetAccessor accessor) {
setMainBandZoomIndex((Integer) state.getValue(MEMENTO_ZOOM_PREFIX + 0));
setOverviewBandZoomIndex((Integer) state.getValue(MEMENTO_ZOOM_PREFIX + 1));
// IMPORTANT: set date *AFTER* zoom restored
setCenterVisibleDate((Date) state.getValue(MEMENTO_DATE));
}