Method refreshAfterWrite

output/java_guava/1.4.13/CacheBuilder.java:712–719

Specifies that active entries are eligible for automatic refresh once a fixed duration has elapsed after the entry's creation, or the most recent replacement of its value. The semantics of refreshes are specified in LoadingCache#refresh, and are performed by calling {@link CacheLoader#reload

(long duration, TimeUnit unit)

   */

    @GwtIncompatible // To be supported (synchronously).
    public CacheBuilder<K, V> refreshAfterWrite(long duration, TimeUnit unit) {
    checkNotNull(unit);
    checkState(refreshNanos == UNSET_INT, "refresh was already set to %s ns", refreshNanos);
    checkArgument(duration > 0, "duration must be positive: %s %s", duration, unit);
    this.refreshNanos = unit.toNanos(duration);
    return this;
    }

    long getRefreshNanos() {
                 return (refreshNanos == UNSET_INT) ? DEFAULT_REFRESH_NANOS : refreshNanos;