N-tier architecture usually has each layer separated by the network. I.E. the presentation layer is on some web servers, then that talks to backend app servers over the network for business logic, then that talks to a database server, again over the network, and maybe the app server also calls out to some remote services … Read more
The problem is that when we use application/x-www-form-urlencoded, Spring doesn’t understand it as a RequestBody. So, if we want to use this we must remove the @RequestBody annotation. Then try the following: @RequestMapping( path = “/{email}/authenticate”, method = RequestMethod.POST, consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE, produces = { MediaType.APPLICATION_ATOM_XML_VALUE, MediaType.APPLICATION_JSON_VALUE }) public @ResponseBody Representation authenticate( @PathVariable(“email”) String anEmailAddress, … Read more
Slightly more “Angular way” would be to use the straightforward limitTo filter, as natively provided by Angular: <ul class=”phones”> <li ng-repeat=”phone in phones | filter:query | orderBy:orderProp | limitTo:quantity”> {{phone.name}} <p>{{phone.snippet}}</p> </li> </ul> app.controller(‘PhoneListCtrl’, function($scope, $http) { $http.get(‘phones.json’).then( function(phones){ $scope.phones = phones.data; } ); $scope.orderProp = ‘age’; $scope.quantity = 5; } ); PLUNKER
MVC Controller: Put code here that has to do with working out what a user wants, and deciding what to give them, working out whether they are logged in, whether they should see certain data, etc. In the end, the controller looks at requests and works out what data (Models) to show and what Views … Read more
Who controls the sort order? (From Wikipedia) 1) Natural order within the data itself: The order is part of the Model, so it should go there. A raw pull of “all data” would return the data in the sorted order, and there is no interface to choose the sort order. 2) The user should control … Read more
DTO is an abbreviation for Data Transfer Object, so it is used to transfer the data between classes and modules of your application. DTO should only contain private fields for your data, getters, setters, and constructors. DTO is not recommended to add business logic methods to such classes, but it is OK to add some … Read more
Seaching for answer I couldn’t find any to be easy and flexible at the same time, then I found the Spring Security Reference and I realized there are near to perfect solutions. AOP solutions often are the greatest ones for testing, and Spring provides it with @WithMockUser, @WithUserDetails and @WithSecurityContext, in this artifact: <dependency> <groupId>org.springframework.security</groupId> … Read more
Based on my experience with AngularJS modals so far I believe that the most elegant approach is a dedicated service to which we can provide a partial (HTML) template to be displayed in a modal. When we think about it modals are kind of AngularJS routes but just displayed in modal popup. The AngularUI bootstrap … Read more
There are two major differences between Observer/Observable and Publisher/Subscriber patterns: Observer/Observable pattern is mostly implemented in a synchronous way, i.e. the observable calls the appropriate method of all its observers when some event occurs. The Publisher/Subscriber pattern is mostly implemented in an asynchronous way (using message queue). In the Observer/Observable pattern, the observers are aware … Read more
In the example you suggested, you’re right: “user clicked the ‘delete this item’ button” in the interface should basically just call the controller’s “delete” function. The controller, however, has no idea what the view looks like, and so your view must collect some information such as, “which item was clicked?” In a conversation form: View: … Read more