synchronization

AngularJS load service then call controller and render

若如初见. 提交于 2019-11-30 03:09:10
My problem is that i need a service loaded before the controller get called and the template get rendered. http://jsfiddle.net/g75XQ/2/ Html: <div ng-app="app" ng-controller="root"> <h3>Do not render this before user has loaded</h3> {{user}} </div> ​ JavaScript: angular.module('app', []). factory('user',function($timeout,$q){ var user = {}; $timeout(function(){//Simulate a request user.name = "Jossi"; },1000); return user; }). controller('root',function($scope,user){ alert("Do not alert before user has loaded"); $scope.user = user; }); ​ ​ You can defer init of angular app using manual

How to synchronize Chrome extension data on different computers?

给你一囗甜甜゛ 提交于 2019-11-30 03:03:42
I have an extension where users maintain a list of links. It would be nice to have this data synchronized between computers (at work and at home). What are the possible solutions? Chrome has extension synchronization option but I am not sure if it synchronizes data or not (I would be surprised if yes). Even if it does, not everyone would want all their other extensions be synced. I can store my links in a special bookmark folder and use built-in bookmark synchronization, but in this case all bookmarks would be synchronized too (not all users would want that either I think). Any external sites

AngularJS: Waiting for an asynchronous call

ε祈祈猫儿з 提交于 2019-11-30 03:00:39
问题 I can't wrap my head around AngularJS' concept of promises. I have a provider: var packingProvider = angular.module('packingProvider',[]); packingProvider.provider('packingProvider',function(){ return{ $get: function($http){ return{ getPackings: function(){ $http.post('../sys/core/fetchPacking.php').then(function(promise){ var packings = promise.data; return packings; }); } } } } }); As you can see, this provides a method getPackings() , which will return an object Now, if I use that in my

singleton pattern in java. lazy initialization

假装没事ソ 提交于 2019-11-30 02:28:47
public static MySingleton getInstance() { if (_instance==null) { synchronized (MySingleton.class) { _instance = new MySingleton(); } } return _instance; } 1.is there a flaw with the above implementation of the getInstance method? 2.What is the difference between the two implementations.? public static synchronized MySingleton getInstance() { if (_instance==null) { _instance = new MySingleton(); } return _instance; } I have seen a lot of answers on the singleton pattern in stackoverflow but the question I have posted is to know mainly difference of 'synchronize' at method and block level in

When do I need to use MPI_Barrier()?

穿精又带淫゛_ 提交于 2019-11-30 01:31:35
I wonder when do I need to use barrier? Do I need it before/after a scatter/gather for example? Or should OMPI ensure all processes have reached that point before scatter/gather-ing? Similarly, after a broadcast can I expect all processes to already receive the message? Markus Mayr All collective operations in MPI before MPI-3.0 are blocking, which means that it is safe to use all buffers passed to them after they return. In particular, this means that all data was received when one of these functions returns. (However, it does not imply that all data was sent!) So MPI_Barrier is not necessary

Java: ArrayBlockingQueue vs. LinkedBlockingQueue

为君一笑 提交于 2019-11-30 01:12:59
I think that, in most cases, the ArrayBlockingQueue will perform better than the LinkedBlockingQueue . However, that is the case when there is always enough room in the array... If it gets full, it's not very predictable whether it will perform so well, since it will block the thread that's trying to push data into the queue... So, my question is: Is there any middle-ground implementation of BlockingQueue ? Say, an ArrayListBlockingQueue or a BucketListBlockingQueue ? Something like a list of arrays, so that the queue can increase in capacity dynamically, while still having a reasonable

How to skip known entries when syncing with Google Reader?

孤街醉人 提交于 2019-11-30 00:58:54
for writing an offline client to the Google Reader service I would like to know how to best sync with the service. There doesn't seem to be official documentation yet and the best source I found so far is this: http://code.google.com/p/pyrfeed/wiki/GoogleReaderAPI Now consider this: With the information from above I can download all unread items, I can specify how many items to download and using the atom-id I can detect duplicate entries that I already downloaded. What's missing for me is a way to specify that I just want the updates since my last sync. I can say give me the 10 (parameter n

How to synchronise FTP directory from command line?

你说的曾经没有我的故事 提交于 2019-11-29 23:23:12
I have a website with PHP files and other. I would like to do one-click synchronisation between my local copy of a website and my website on the server. It would be nice if there was be a command line utility or plugin to Eclipse PDT to do this. I would recommend lftp . It's a sophisticated, scriptable command-line FTP client. lftp has builtin mirror which can download or update a whole directory tree. There is also reverse mirror (mirror -R) which uploads or updates a directory tree on server. Mirror can also synchronize directories between two remote servers, using FXP if available. lftp -f

What is the purpose of passing parameter to synchronized block?

℡╲_俬逩灬. 提交于 2019-11-29 23:09:57
I know that When you synchronize a block of code, you specify which object's lock you want to use as the lock, so you could, for example, use some third-party object as the lock for this piece of code. That gives you the ability to have more than one lock for code synchronization within a single object. However, I don't understand the need of passing argument to the block. Because it doesn't matter whether I pass String's instance, Some random class's instance to the synchronized block as the synchronized block works perfectly irrespective of the parameter being passed to the block. So my

Android - sync contact add programmatically to google account

为君一笑 提交于 2019-11-29 23:08:29
问题 In my app I need to add contact to default google account and sync it. Here my code: public static void addContact(Context context, String DisplayName,String WorkNumber, String MobileNumber, String emailID, String jobTitle, String company, String address){ ArrayList <ContentProviderOperation> ops = new ArrayList < ContentProviderOperation > (); String account = getUsernameLong(context); ops.add(ContentProviderOperation.newInsert( ContactsContract.RawContacts.CONTENT_URI) .withValue