/** Notify the worker that new entry to delete appeared. */
void signal() {
lock.lock();
try {
force = true;
cond.signalAll();
} finally {
lock.unlock();
}
}
/** {@inheritDoc} */
@Override
protected void body() throws InterruptedException {
if (log.isDebugEnabled()) log.debug("Delete worker started.");
while (!cancelled) {
lock.lock();
try {
if (!cancelled && !force) cond.await(FREQUENCY, TimeUnit.MILLISECONDS);
force = false; // Reset force flag.
} finally {
lock.unlock();
}
if (!cancelled) delete();
}
}