/**
* 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;
}
/**
* Add data
*
* @param adapter adapted data
*/
public synchronized void add(DataAdapter adapter) {
newDatums.add(adapter);
changed = true;
updater.update();
}
/**
* Set whether the data has changed
*
* @param adapter adapted data
*/
public synchronized void setChanged(DataAdapter adapter) {
if (extantDatums.contains(adapter)) {
extantDatums.remove(adapter);
changedDatums.add(adapter);
changed = true;
updater.update();
}
}
/**
* Set that this data is obsolete or not
*
* @param adapter adapted data
*/
public synchronized void setObsolete(DataAdapter adapter) {
if (newDatums.contains(adapter)) {
newDatums.remove(adapter);
} else {
java.util.Set set =
extantDatums.contains(adapter)
? extantDatums
: changedDatums.contains(adapter) ? changedDatums : null;
if (set != null) {
// Remove listener now so fewest notifications.
adapter.removePropertyChangeListener(adapter.CONSTANT_MAP, listener);
set.remove(adapter);
obsoleteDatums.add(adapter);
changed = true;
updater.update();
}
}
}