angular 2 lazy loading

Lazy LoadingImplemented through ASM and cglib two packages, domain is non-final. 1.session.load lazy Loading. 2.one-to-one (Element) Lazy loading: Must meet the following three conditions to achieve

after spring, it is not possible to take the sub-objects in the interception object using OpensessionviewThere are a lot of things that can't be used, so how to solve them. Some people say that is lazy=false, you want to solve a simple quartz when the entire Web project to adjust the load seems inappropriate.What to do, I think this time can consider the use of SQL statements to reload the proxy class, so that when you want to invoke the manual

department: that is, the size of the collection dept.getemps (). Size (); // Close Session hibernateutil.closesession (); }The output results are as follows:③ multiple-to-one correlation query strategyThe The default value for the Lazy property is proxyProxy: Lazy LoadingNo-proxy: Agent-free lazy loadingFalse: Load NowExample: /*

put here first) */ Public User Finduserbyid (int ID);}Test Ideas and code:1, execute the upper Mapper method (findordersuserlazyloading), internal to call Ordersmappercustom in the findordersuserlazyloading only query orders information (single table).2, in the program to traverse the previous step to query out the LIST3, delay loading, to call Finduserbyid this method to obtain user information.//que

What is lazy loading ? Hibernate provides a mechanism for querying a data without immediate access to the database when a lazy load is set, so it does not return the specified object, but instead returns the proxy object, which is not null. It is actually an object that hibernate automatically implements subclasses of the class that the specified object belongs

Lazy loading, computed properties, reflection mechanism1. Lazy Loading:Purpose: 1. Delay creation, load when needed, save memory space2. Avoid the development of the problem of understanding the package (important!!!) ）Knowledge: 1. All UIView and subclasses are in development, once the function is rewritten, the Initwithcoder function must be implemented to prov

= (Classes) session.get (Classes.class, 1L); set1.3 Lazy loading of single-ended associations (lazy loading of many2one)Depending on the one end of the load, the fact is that just a little more data is being checked, which has little effect on performance, such as checking the class according to the students.Summarize

In the previous article, I talked about association mappings. The purpose of the association mapping is to make the object-oriented queries load the entity information associated with the entity at the same time, avoid two queries, and improve the convenience of the query, so that the object-oriented operation can better cover the function of SQL. But there is a problem to consider: the loading of the associated entity must be to occupy the program re

loading, is loaded only when needed (low efficiency and low memory usage ). The so-called lazy loading is actually rewriting the getter method. To put it bluntly, it is to say that in development, when the resources need to be used in the program. Resources are not loaded when the program starts. These resources are loaded only when some resources are required f

({//NOTE 1 Fallback: {loader: "Style-loader"}, use: [{loader: "Css-loader ", Options: {minimize:true}}, {loader:" s Ass-loader "}]})}]}, plugins: [New Extracttextplugin ({filename:" [Name ].min.css ", Allchunks:false//NOTE 2})]}; In the configuration, note the configuration items in 1 for the callback LOADER that css scss should be used for styles that are not extracted as separate files. style-loaderembed the Web page code with SCSS, even if it is

, 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

business logic; Proxy class: Used to proxy and encapsulate real topics; Main: The client, using the proxy class and the topic interface to do some work. Back to top of pageLazy LoadingA simple example illustrates the method of using proxy mode to implement lazy loading and its significance. It is assumed that a client software has the ability to query data based on user requests to the database. Befor

Lazy Loading1. What is deferred loadingResultmap can implement advanced Mapping (using association, collection for one-to-one and one-to-many mappings), association and collection have lazy loading capabilities.Demand:Queries the user information if the order is queried and associated. If you query the order information to meet the requirements, when we need to q

/projects/lazyload Now the lazy load version is already 1.8.1 Download Address: http://www.jb51.net/jiaoben/63757.html Instance Downloads: Download statement: 1. Note: This code is for learning Exchange only, please do not use for commercial use. 2. Note: This code is for learning Exchange only, please do not use for commercial use. File information: FileName: Lazy