/**
* Set the display for the data
*
* @param isEmpty true if the data is null
* @throws RemoteException Java RMI error
* @throws VisADException problem creating VisAD object
*/
public synchronized void setDisplay(boolean isEmpty) throws VisADException, RemoteException {
if (isEmpty) {
for (Iterator iter = extantDatums.iterator(); iter.hasNext(); ) {
((DataAdapter) iter.next()).addTo();
}
} else {
for (Iterator iter = obsoleteDatums.iterator(); iter.hasNext(); ) {
((DataAdapter) iter.next()).removeFrom();
}
}
obsoleteDatums.clear();
for (Iterator iter = changedDatums.iterator(); iter.hasNext(); ) {
DataAdapter adapter = (DataAdapter) iter.next();
adapter.addTo();
iter.remove();
extantDatums.add(adapter);
}
for (Iterator iter = newDatums.iterator(); iter.hasNext(); ) {
DataAdapter adapter = (DataAdapter) iter.next();
adapter.addTo();
iter.remove();
extantDatums.add(adapter);
// Add listener now so fewest notifications.
adapter.addPropertyChangeListener(adapter.CONSTANT_MAP, listener);
}
changed = false;
}
