* INTERNAL:
*/
public Class getImplClass() {
if ((javaImplClass == null) && (getImplClassName() != null)) {
try {
SDOClassLoader loader = ((SDOXMLHelper)aHelperContext.getXMLHelper()).getLoader();
javaImplClass = loader.loadClass(getImplClassName(), this);
xmlDescriptor.setJavaClass(javaImplClass);
} catch (ClassNotFoundException e) {
throw SDOException.classNotFound(e, getURI(), getName());
} catch (SecurityException e) {
throw SDOException.classNotFound(e, getURI(), getName());