caching

问题 I'm writing an app which stores images in Google Drive and I'd like to display a gallery of those ( GridView ). To be more performant (i.e. async) I'd like to integrate this with Picasso . But the Picasso.load(String) is just an alias to load(Uri.parse(path)) , and I don't have a Uri because the images are loaded like this (simplified and with undisclosed utility methods): public static Bitmap getBitmap(DriveId id) { GoogleApiClient client = ApiClientAsyncTask.createConnectedClient(App

问题 I have an app that lets you download "modules" that can expand your app usage. When the user downloads a module, I fetch a ZIP file from a server and extract it to his Caches folder. (Each of these zips could be sized anywhere from 60k to 2MB). Unfortunately, there are over 300 modules available, and many of the users download at least 50-60 of these to their device. Lately, I got many complaints that modules just disappear off the user device, so I did some investigation and came across the

问题 I develop an project using JPA along with Hibernate and I have two threads: Thread A: is always reading and outputs the differences Thread B: has some write operations and one transaction which is committed after finishing writing data If I delete data or insert new data from/in the database, after committing transactions from Thread B, in Thread A I see the differences, that some data was removed or added. My problem is when I update existing data: after committing, Thread A doesn't see the

问题 I develop an project using JPA along with Hibernate and I have two threads: Thread A: is always reading and outputs the differences Thread B: has some write operations and one transaction which is committed after finishing writing data If I delete data or insert new data from/in the database, after committing transactions from Thread B, in Thread A I see the differences, that some data was removed or added. My problem is when I update existing data: after committing, Thread A doesn't see the

问题 I trying to use Django Cache to make better my views. Works great, 400ms to 8ms is perfect. But when user access page for the first time, Django cache page with user info in header and when I try log out, page continue with user info. I try use cache in template too, but isn't good, my problem come from view, so continue 400ms. My settings.py CACHES = { 'default': { 'BACKEND': 'django.core.cache.backends.locmem.LocMemCache', 'LOCATION': 'unique-snowflake', } } My view.py @cache_page(60 * 15)

问题 I need that my cache be refreshed everyday at a specific time, in my case, at midnight. I have way to do this with Guava LoadingCache? So far I only got the cache be renewed after a day, with the next code: private final LoadingCache<String, Long> cache = CacheBuilder.newBuilder() .refreshAfterWrite(1, TimeUnit.DAYS) .build(new CacheLoader<String, Long>() { public Long load(String key) { return getMyData("load", key); } } 回答1: Here's a code snipped that implements JB Nizeth's answer (Java 8):

问题 I need that my cache be refreshed everyday at a specific time, in my case, at midnight. I have way to do this with Guava LoadingCache? So far I only got the cache be renewed after a day, with the next code: private final LoadingCache<String, Long> cache = CacheBuilder.newBuilder() .refreshAfterWrite(1, TimeUnit.DAYS) .build(new CacheLoader<String, Long>() { public Long load(String key) { return getMyData("load", key); } } 回答1: Here's a code snipped that implements JB Nizeth's answer (Java 8):

问题 I've been searching a lot about this, but I can't find any solution that really works: we're building a web app using lot of javascript/css files, which are modified at anytime. The thing is that we need that the client's browser always gets the last version of the script. We tried adding the GET query (?v=CurrentDate), but the browser keeps loading the old script until you hit refresh a few times or do CTRL+F5. One thing we want to avoid is to store those files in different folders like

问题 Hi i am new beginner in android. I want to insert image in imageView from URL but whenever one time it is loaded from URL in imageView then second time it should be insert without internet means it would be stored in cache as well. 回答1: for this you can use picasso Library You can download it from Picasso Library site simply put this jar file into libs folder. It will manage all property of Image. http://square.github.io/picasso/ String imgURL = "Your URL"; ivmage = (ImageView) findViewById(R

问题 Hi i am new beginner in android. I want to insert image in imageView from URL but whenever one time it is loaded from URL in imageView then second time it should be insert without internet means it would be stored in cache as well. 回答1: for this you can use picasso Library You can download it from Picasso Library site simply put this jar file into libs folder. It will manage all property of Image. http://square.github.io/picasso/ String imgURL = "Your URL"; ivmage = (ImageView) findViewById(R