final long maxTime = _timeMaster.currentTimeMillis() + limits.getMaxMsecs();
final int maxEntries = limits.getMaxEntries();
final ArrayList<StorableKey> result = new ArrayList<StorableKey>(100);
final boolean includeTombstones = limits.getIncludeTombstones();
StorableIterationCallback cb = new StorableIterationCallback() {
public int counter; // to avoid checking systime too often
@Override
public IterationAction verifyKey(StorableKey key) {
if (!key.hasPrefix(prefix)) {