* @param transaction Transaction on behalf of which operations occur.
* @param mode E.g., Read, Write, Copy, etc.
**/
public Object open(GlobalObject object, Transaction t, String mode) {
Vector objects = getObjects(t);
if (objects.indexOf(object) == -1) // locked already?
objects.addElement(object); // mine, all mine
return directory.open(object, mode);
}
/**