Returns true (the file is selected) if any of the other selectors
agree that the file should be selected.
validate();
Enumeration e = selectorElements();
boolean result;
// First, check that all elements are correctly configured
while (e.hasMoreElements()) {
result = ((FileSelector) e.nextElement()).isSelected(basedir,
filename, file);
if (result) {
return true;
}
}
return false;