在番石榴缓存中，在不提供它的情况下创建 LoadingCache 时，refreshAfterWrite 的默认值是什么

Question

What is the default value for refreshAfterWrite when creating a LoadingCache without providing it.

cache = CacheBuilder.newBuilder().build(new CacheLoader<Object, Object>() {
  @Override
  public Object load(Object o) throws Exception {
    return getObj(o);
  }

  @Override
  public ListenableFuture<Object> reload(Object o) throws Exception {
    final ListenableFutureTask<Object> task = ListenableFutureTask.create(() -> {
      return getObj(o);
    });
    executor.execute(task);
    return task;
  }
});

I see in the debug that the refreshAfterWrite is -1, but what does it means? It means it will never reload?

Answer 1

I can read from this issue that:

It's documented that if no options are set, a cache created by CacheBuilder will never do any kind of eviction. This applies to refresh as well, as it is a form of eviction.