lazy-loading

问题 My main application form (WinForms) has a DataGridView, that uses DataBinding and Fluent NHibernate to display data from a SQLite database. This form is open for the entire time the application is running. For performance reasons, I set the convention DefaultLazy.Always() for all DB access. So far, the only way I've found to make this work is to keep a Session (let's call it MainSession) open all the time for the main form, so NHibernate can lazy load new data as the user navigates with the

问题 I understand that this is highly specific to the concrete application, but I'm just wondering what's the general opinion, or at least some personal experiences on the issue. I have an aversion towards the 'open session in view' pattern, so to avoid it, I'm thinking about simply fetching everything small eagerly, and using queries in the service layer to fetch larger stuff. Has anyone used this and regretted it? And is there maybe some elegant solution to lazy loading in the view layer that I

问题 Using Android Universal Image Loader and RecyclerView to asynchronously load images, I'm getting the same error as other people, where the images get mixed up; until they have all loaded an are cached. Code for the adapter: import android.content.BroadcastReceiver; import android.content.Context; import android.content.DialogInterface; import android.graphics.Bitmap; import android.media.Image; import android.support.v7.widget.RecyclerView; import android.util.Log; import android.view

问题 I have found many other posts but they are nt facing exactly the same problem. And they are using a slightly different code. SO I think it is worth reviewing this. I´m using EF6 code first, and I created a Client Entity that has some navigation properties. I´ll post just the relevant code, consider there are a few more properties and foreign keys as well, but not relevant to the problem. Model is generating ok. public class Client { public Client() { JobsExperiences = new Collection

问题 I have a PrimeFaces p:dataTable and enabled lazy loading by implementing a LazyDataModel . The dataTable holds search results, so when doing a search request the search service only retrieves the required (paginating) data. That works fine. When doing a ajax request with p:commandButton : <p:commandButton id="searchCmdBtn" value="Search" action="#{searchBean.search}" update=":resultForm:resultList :filterForm:filterMenu :resultForm:messages" ajax="true" /> the dataTable gets updated properly,

问题 I'm using Spring annotations and I want to use lazy initialization. I'm running into a problem that when I want to import a bean from another class I am forced to use @Autowired which does not seem to use lazy init. Is there anyway to force this lazy init behaviour? In this example I do not want to see "Loading parent bean" ever being printed as I am only loading childBean which has no dependencies on lazyParent . @Configuration public class ConfigParent { @Bean @Lazy public Long lazyParent()

问题 I basically have a booking engine unit results page which must show 40 units and per each unit there's 1 large image of the first thumbnail and an X number of accompanying thumbnail images. I've been using the jquery lazy load plugin, but it's not thorough enough ( I'm invoking it on DOM Ready ), plus it doesn't really work in IE ( 50% of the clients use IE so it's a big issue ). What I think I really need to do is not really spit out the image but a fake element such as a span, and possibly

问题 I'm using NHibernate 3.0.0 and the new feature lazy properties. However, in some queries I want to eagerly load the properties and I would like the query to result in non-proxied entity instances. I also prefer to use the LINQ provider or QueryOver. So my two questions related to this are: I know that eager loading of properties can be achieved in HQL with "fetch all properties" but is it possible to do the same with the LINQ provider or QueryOver? If I execute an HQL query with "fetch all

问题 I'm using NHibernate 3.0.0 and the new feature lazy properties. However, in some queries I want to eagerly load the properties and I would like the query to result in non-proxied entity instances. I also prefer to use the LINQ provider or QueryOver. So my two questions related to this are: I know that eager loading of properties can be achieved in HQL with "fetch all properties" but is it possible to do the same with the LINQ provider or QueryOver? If I execute an HQL query with "fetch all

问题 I'm using NHibernate 3.0.0 and the new feature lazy properties. However, in some queries I want to eagerly load the properties and I would like the query to result in non-proxied entity instances. I also prefer to use the LINQ provider or QueryOver. So my two questions related to this are: I know that eager loading of properties can be achieved in HQL with "fetch all properties" but is it possible to do the same with the LINQ provider or QueryOver? If I execute an HQL query with "fetch all