angular 2 lazy loading

) Session.load ( User.class, 2);We see that if we simply load our user object through load, from the console we will find that the object is not queried from the database, that is, the SQL statement is not emitted, but if we want to use the object:Session = Hibernateutil.opensession ();　　　　　　User user = (user) session.load (user.class, 2); SYSTEM.OUT.PRINTLN (user);At this point we see the SQL query stateme

(s.isvaluecreated);//Returns True}}public class Testlazy{public static string GetString (){return DateTime.Now.ToLongTimeString ();}}The following example shows a lazy load.In this example, a Bloguser object is used that contains multiple article objects, and when the Bloguser object is loaded, the article object is not loaded and is loaded when the article object is needed.Deferred loading with sub-object

Why do I need to delay loading? Because it will improve efficiency, the existence is reasonable, haha. General settings lazy loading is on the Object relational map (on many sides). For example: A user has multiple consumption records. Set to lazy, when querying the data will only take out the consumption record (more

Detailed description of angular-based requireJs loading js and angularrequirejs on demand I am not busy recently !! You have time to accumulate the angular stuff you learned !! Angular routes must be familiar to everyone! (For strangers, refer to my previous article and teach you how to configure

Through the use of jquery lazy loader plug-ins can be implemented to delay the loading of the picture, when the page is longer, will only load the user window of the picture, depending on the window of the picture will wait until you drag the scroll bar to the back before loading, so effective to avoid too many pictures and slow

associates the two, which is to use the order information user_id to check the user. Here's how to implement this idea:1. Only the statement of order information is queried:id= "findordersuserlazyloading" resultmap= " Ordersuserlazyloadingresultmap "> select * FROM OrdersSelect >2. Query the statement of user information only:id= "Finduserbyid" parametertype= "int" resulttype = "User" > SELECT * from user where id = #{id}Select>3. Def

1. The concept of slow-loading and preloadThese techniques are not limited to picture loading, but we first discuss the most commonly used picture loading. Slow load: Load some pictures when you delay loading pictures or if certain conditions are met. Preload: Load images in advance and render directly fro

lazy loading is delayed loading and delay loading. when to load with lazy, I can only answer to lazy loading with lazy

This article mainly introduces lazy loading and preload two technology analysis, nonsense not to say, together to see. lazy loading is also called delay loading: The previous article has introduced: JS pictures delay loading pict

TypescriptinterfaceFeel Typescript interface is a chicken, rather than all defined as class, the original is as followsIt's not a Angular ' s fault. An interface is a TypeScript design-time artifact. JavaScript doesn ' t has interfaces. The TypeScript interface disappears from the generated JavaScript. There is no interface type information left for Angular to find at runtime.That is, when Typescript is co

, and if you remove the lazy load, then the cost of each query becomes very large, if the association table more, the consequences can be imagined. So it is not recommended to use this method to solve.2), before the session closed before the data we want to query first obtained. The first thing you need to know is when the session closes, which is its life cycle. Normally hibernate will close the session wh

Lazy Loading: Load (read) when we need toWhen we want to view an order information, we want to display its corresponding order detail record, we hope to use lazy loading to achieve, not only to speed up the efficiency of reading, but also to avoid loading unnecessary data.

These days the company's project has been completed almost, leaving only a variety of optimization problems. Today focuses on the optimization of picture loading. When a page needs to pull down very long and there are too many images to load, there will be a lot of HTTP requests, will slow down the page loading speed, user experience is not friendly. How to solve this problem? jquery Plugin Library has a pl

, because it takes a lazy load, so if you want toCancel to change the lazy to false under the mapping file When a session loads an entity, a deferred load is applied to another entity object that is a single-ended association (one-to-one, Many-to-one) for that entity.Lazy-loaded objects are rewritten proxy objects, and when the associated session is not closed, access to the properties of these

Department page, we need to pass in a department ID, when B department information has been displayed to the page, the relevant session has been closed, the system will throw an exception, the error message is as follows:Workaround:(1) Set the lazy load property to FalseThis method is the simplest, but we can not use Hibernate delay loading mechanism, that is, each load may load a lot of data can not be us

The basic concepts of lazy loading and preload. nbsp; Lazy loading is also called delay loading: The previous article has introduced: JS pictures delay loading pictures or certain conditions to load some pictures. nbsp; nbsp; n

iOS Development UI article-Lazy Loading1. Lazy Loading BasicLazy Loading--also known as deferred loading--is loaded when needed (low efficiency, small memory footprint). The so-called lazy load, write is its get method.Note: If it

Lazy load 1. Lazy Load Basic Lazy Loading--also known as deferred loading--is loaded when it is needed (inefficient, small memory footprint). The so-called lazy load, write is its get method. Note: If it is

component used in the previous blog is used as an example to Export the [Export] configuration of the object on the specific implementation object of log records. If you use the traditional method to import parts, the following code block is shown: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->[Import (typeof (ILogger)] Public ILogger Logger {get; set ;} If Lazy

Why do we need images to load on demand?The pictures in the website can make the website add a lot of "color", but a lot of pictures will make us turn the speed down, but we have to use these pictures, we can load these images in disguise, common with some list page ah, or Big Data homepage ah, or "All is map" of the page, Then this image loading is very important, such as Jd,taobao what is in use, so that you are not alone!Data display can greatly im