Disable Volley cache management

If you use any of the default Request classes implemented in volley(e.g. StringRequest, JsonRequest, etc.), then call setShouldCache(false) right before adding the request object to the volley RequestQueue: request.setShouldCache(false); myQueue.add(request); If you have your own implementation of the Request class, then you can call setShouldCache(false) in the constructor of your class. This solution disables caching … Read more

Chrome caching like a mad browser

Chrome should certainly treat requests with varying query strings as different requests; a cached result for style.css?v=123 should never be used for style.css?v=124. If you’re seeing different behavior, please file a bug at http://new.crbug.com/ and post the bug ID here. That said, I’d first check to see whether the page was cached longer than you … Read more

No expires header sent, content cached, how long until browser makes conditional GET request?

From the the HTTP caching spec (section 13.4): Unless specifically constrained by a cache-control (section 14.9) directive, a caching system MAY always store a successful response (see section 13.8) as a cache entry, MAY return it without validation if it is fresh, and MAY return it after successful validation. This means that a user agent … Read more

Cache invalidation strategy

Invalidate the cache during the Update stage is a viable approach, and was extremely used in the past. You have two options here when the UPDATE happens: You may try to set the new value during update operation, or Just delete the old one and update during a read operation. If you want an LRU … Read more

How to Cache InputStream for Multiple Use

you can decorate InputStream being passed to POIFSFileSystem with a version that when close() is called it respond with reset(): class ResetOnCloseInputStream extends InputStream { private final InputStream decorated; public ResetOnCloseInputStream(InputStream anInputStream) { if (!anInputStream.markSupported()) { throw new IllegalArgumentException(“marking not supported”); } anInputStream.mark( 1 << 24); // magic constant: BEWARE decorated = anInputStream; } @Override … Read more

How do I clear the server cache in asp.net?

You could loop through all the cache items and delete them one by one: foreach (System.Collections.DictionaryEntry entry in HttpContext.Current.Cache){ HttpContext.Current.Cache.Remove(string(entry.Key)); } Syntax Correction for ASP.NET 4.5 C# foreach (System.Collections.DictionaryEntry entry in HttpContext.Current.Cache){ HttpContext.Current.Cache.Remove((string)entry.Key); }

What is the difference between HttpContext.Current.Cache.Insert and HttpContext.Current.Cache.Add

The main difference between the two is that if an object with the same name already exists in the cache, the Insert method call on your instance of Cache will replace the object, whereas the Add method call will fail (taken from the Remarks paragraph of methods Add and Insert on their respective MSDN reference … Read more