lazy-loading

问题 What is the proper way to inject a data access dependency when I do lazy loading? For example I have the following class structure class CustomerDao : ICustomerDao public Customer GetById(int id) {...} class Transaction { int customer_id; //Transaction always knows this value Customer _customer = null; ICustomerDao _customer_dao; Customer GetCustomer() { if(_customer == null) _customer = _customer_dao.GetById(_customer_id); return _customer } How do I get the reference to _customer_dao into

问题 My problem is that after I've selected a few items on the 1st page, if I paginate to another page and come back, my initial selections are not shown. I've tried to implement the SelectableDataModel as well as using the rowKey attribute but the problem persists. This is my test bean: @ManagedBean @ViewScoped public class MrBean { private List<Item> chosenItems; private LazyDataModel lazyModel; @PostConstruct public void prepareTest() { this.lazyModel = new LazyItemDataModel(); } public void

问题 I am working with Harism Page Curl(Open GL ) https://github.com/harism/android_page_curl and its works perfectly fine But in this example the condition I found is that we must have all Bitmap resource ready(downloaded) but what I want is image will going to load(runtime) from web and will be cache for future like this. Want some idea that how would I achieve this? a small help/hint is also appreciated. :) Thanks. 回答1: This answer assumes that you want to use the Page Curl by Harri Smått

问题 I would like to use lazy loading but I can not understand why it does not work, it gives me error "Cannot find module". This is my environment: - Angular 5.2.1 - .NET Core 2 - Webpack 3.10.0 - angular-router-loader 0.8.2 - @angular/cli 1.6.5 I tried different path in loadChildren always without success, i also temporarily disabled all the guards and the children routing. What did I do wrong? FOLDERS ClientApp app components users users-routing.module.ts users.module.ts app-routing.module.ts

问题 I am trying to implement lazy loading but getting error as following ** ERROR Error: Uncaught (in promise): Error: BrowserModule has already been loaded. If you need access to common directives such as NgIf and NgFor from a lazy loaded module, import CommonModule instead. ** Need Help on this. Here are my Modules Shared MOdule @NgModule({ declarations: [TimePipe], providers: [ EmsEmployeeService, EmsDesignationService, EmsOrganizationService, EmsAuthService, AmsEmployeeService,

问题 I am trying to get a jquery slideshow to display images from flickr, fading and scrolling. Everything works fine, except I really need Lazy Loading of the images (just loading the images on demand). I am currently using jquery.cross-slide ( http://tobia.github.com/CrossSlide/ ) but unfortunately tobia is not working on the plugin anymore and also does not want to answer to questions. I found an example of jquery.cycle, where image lazy loading is applied (see http://malsup.com/jquery/cycle

问题 Let's take a look at my plunker: https://plnkr.co/edit/22RIoGsvzfw2y2ZTnazg?p=preview I want to lazy load a Module as a child-route. So the route /lazy should render the LazyModule into the <router-outlet> of my MainComponent . Then it will switch between that DummyComponent and the lazy loaded Module. Instead now that lazy loaded Module will be rendered into the AppComponent .. Any ideas? 回答1: If you want to lazy load a module, do not import it as you've done here : src/app.ts : import {

问题 I had the (in)famous problem with hibernate and lazy loading when views are rendered.... As many say, the only two solutions are: Make the method transactional (and this is not always desiderable) Use OpenSessionInViewInterceptor. The latter is preferable IMO. Anyway I'm not sure if this interceptor is firing at all (in fact I get the same Lazy loading exception and nothing changes): org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: it.jsoftware

问题 Although there are many tutorials out there, I've found it really difficult to implement an AsyncTask to load images from URI's (obtained from a content provider) into a custom adapter. I get the basic gist, which is to have a class containing an AsyncTask, do the bitmap creation in the 'doInBackground', and then set the ImageView in the onPostExecute. The problem for me, being new to android & programming, is that I don't know how to pass in my Uri's to the AsyncTask for each item, how to

问题 I have a view controller that I want to lazily initialize, and once initialized, use the same copy when possible (I don't use a singleton since I do want to remove it from memory eventually), I use the getter to do so, my code look like this: @property (retain) UIViewController *myController ... @synthesize myController = _myController; ... - (UIViewController *)myController { if (!_myController) { // Evaluation _myController = [[MyViewController alloc] init]; // Object Creation } return