caching

问题 I am trying to build a cache using https://github.com/ben-manes/caffeine, where I need to fetch all entries during boot up time and I do not know all the keys before hand. My CachLoader has something like this and trying to cache all at startup. But looks like I will need to know all the keys before hand, if I want to prefetch all entries in to cache? Am I missing anything? So, say I call cache.getAll(10) and only 10-->100 will be cached even though the loadAll method returns 3 entries (10--

问题 I am trying to build a cache using https://github.com/ben-manes/caffeine, where I need to fetch all entries during boot up time and I do not know all the keys before hand. My CachLoader has something like this and trying to cache all at startup. But looks like I will need to know all the keys before hand, if I want to prefetch all entries in to cache? Am I missing anything? So, say I call cache.getAll(10) and only 10-->100 will be cached even though the loadAll method returns 3 entries (10--

问题 I'm trying to install the "selectize-rails" gem. I was having a lot of trouble ( TypeError: $(...).selectize is not a function ) so I gave up for a while and worked on unrelated things. Then I returned to it, and the gem was suddenly working, though none of the code I had changed was at all relevant to it. I then altered one line of code and refreshed the page to see the result, and it once again displayed the same error in the web console it had before: TypeError: $(...).selectize is not a

问题 I'm using Spring cache abstraction with Guava cache. I have a method with @Cacheable annotation and parameter (that serves as a cache key) to put values into the cache. But this method is accessed in a multi threaded env so there are multiple concurrent calls to the method with the same parameter value. So that means the same logic that creates the value to be cached is done for the same cache key multiple times and put into the cache multiple times concurrently. It'd be much more efficient

问题 If I have an ATG Nucleus Repository Item that is not cacheable (ATG/Nucleus simple cache is disabled) AND I'm not in a transaction, the following results in two queries to the database. The following code results in a db query for every property. repositoryItem.getPropertyValue("columnA"); repositoryItem.getPropertyValue("columnB"); If debugging for the user entity is enabled you would see the following log statements ever each call: repositoryItem.getPropertyValue("columnA"); DEBUG

问题 If I have an ATG Nucleus Repository Item that is not cacheable (ATG/Nucleus simple cache is disabled) AND I'm not in a transaction, the following results in two queries to the database. The following code results in a db query for every property. repositoryItem.getPropertyValue("columnA"); repositoryItem.getPropertyValue("columnB"); If debugging for the user entity is enabled you would see the following log statements ever each call: repositoryItem.getPropertyValue("columnA"); DEBUG

问题 I have a model on MVC project and suitable xml document , which gets from web service and it will be deserialized with type of my model. And I will get deserialized object and work with it. How to save locally changes in this model object? 回答1: The design of your persistence layer depends alot on the purpose of your applciation, and the lifetime of the objects persisted. A NoSQL solution would provide a simple way to serialize/deserialize objects your application. MVC 4 pushes Entity

问题 In my project after login page, main page contain menu on left hand site if I clicked on menu link 1 ==> you will navigate to page 1 then click menu link 2 ==> you will navigate to page 2 ,if you use back button then i get document expired . I want to delete the browser cache after logged out for this i use phase listener. code of phase listener @Override public void beforePhase(PhaseEvent event) { FacesContext facesContext = event.getFacesContext(); HttpServletResponse response =

问题 The aim is to remove only the last row at any time and only by the last remove button. There is a user interface which building up as a multiplication of the same row. The number of rows are controlled by 'Add' & 'Remove' buttons which are also elements of the row. The problem is that the hidden widgets - that are applied for each row to distinguish the instances by storing their row numbers - are storing the very same number which is the last one. Except the first (0) hidden widget which

问题 I have an azure project with a dedicated cache role for session. With azure cache 2.2 and lower it works just fine but when I upgrade it fails with the following error. I downgrade and it works again. [SocketException (0x2af9): No such host is known] Microsoft.ApplicationServer.Caching.AsyncResultNoResult.EndInvoke() +217 Microsoft.ApplicationServer.Caching.TcpClientChannelFactory.TcpConnectionCallback(IAsyncResult result) +163 [DataCacheException: ErrorCode:SubStatus:There is a temporary