/**
* Constructs. This is the most general constructor.
*
* @param displayAdapter The adapted display.
* @param dataReference The reference to the datum.
* @param constantMaps The constant maps for the datum. May be <code>null</code>.
* @param renderer The renderer for the data. May be <code>null</code>. If non-<code>null</code>,
* then must not have been used before.
* @throws VisADException The DataRenderer is already in-use for other data.
* @throws RemoteException Java RMI failure.
*/
public DataAdapter(
DisplayAdapter displayAdapter,
DataReference dataReference,
ConstantMaps constantMaps,
DataRenderer renderer)
throws VisADException, RemoteException {
display = displayAdapter.getDisplay();
if (renderer != null) {
if (rendererTable.get(renderer) != null) {
throw new VisADException(
getClass().getName() + ".<init>: " + "DataRenderer already in-use for other data");
}
rendererTable.put(renderer, this);
}
if (constantMaps == null) {
mapAdapterListener = null;
} else {
mapAdapterListener =
new PropertyChangeListener() {
public void propertyChange(PropertyChangeEvent event) {
PropertyChangeEvent newEvent =
new PropertyChangeEvent(
DataAdapter.this, CONSTANT_MAP, event.getOldValue(), event.getNewValue());
newEvent.setPropagationId(event.getPropagationId());
firePropertyChange(newEvent);
}
};
constantMaps.addPropertyChangeListener(constantMaps.CONSTANT_MAP, mapAdapterListener);
}
this.dataReference = dataReference;
this.constantMaps = constantMaps;
dataRenderer = renderer;
displayAdapter.add(this);
}