/** {@inheritDoc} */
public String getData() {
StringBuffer sb = new StringBuffer();
for (int i = 0; i < data.size(); i++) {
XAData xd = data.get(i);
sb.append(xd.getUrl());
if (i < data.size() - 1) sb.append(", ");
}
return sb.toString();
}
/** {@inheritDoc} */
public void fail(XAData xd) {
if (current != null && current.equals(xd)) current = null;
}