private synchronized TransactionTimestamp waitForNotification() {
while (_queue.size() == 0) {
synchronized (_emptynessMonitor) {
_emptynessMonitor.notify();
}
Cool.wait(this);
}
return (TransactionTimestamp) _queue.removeFirst();
}
public void waitToEmpty() {
synchronized (_emptynessMonitor) {
while (_queue.size() != 0) Cool.wait(_emptynessMonitor);
}
}
public POBox(TransactionSubscriber delegate) {
_delegate = delegate;
Cool.startDaemon(this);
}