vsm mapping

Recently in the project to use the NHibernate, use it is not difficult, but very troublesome. If I have hundreds of tables in my database it would be cumbersome to use nhibernate in this case, although the ORM framework itself is powerful, but it is too cumbersome to be heavyweight in use, so it needs to be improved in the project. This is the fluentnhibernate, it is a smooth version of the NHibernate, support all the nhibernate functions, but also encapsulates the

What is port mapping? Port mapping is also known as Port forwarding, and some are called NAT, virtual server. The port mapping process is like your home in a Community B building room 2410, your friend came to you, find the door of the community, do not know which floor you live? Ask the Gatekeeper security guard, the security very polite told him your home detai

We knowJavavirtual machines only knowclassfiles to be run on a virtual machine, you must follow theclassfile format, soJSPcompiled intoservletwill need to be further compiled intoclassfile, but fromJSPfiles toJavafile again toclassfile process need to consider more things, one of the more important is debugging problems, because the syntax is different,JSPHow the logic of a row executesJavafile corresponding to theJVMAn exception or error occurred during execution to findJSPthe corresponding lin

The previous article discussed many-to-many mappings, with the emphasis on using the first, inheritance mappingInheritance is an object-oriented feature, it implements the code to take, and in the relational model has the same inheritance relationship, such an inheritance can actually be regarded as an enumeration relationship, a type can be enumerated a very many subtypes, these subtypes and the parent object form an inheritance relationship, Most of the enumeration can be seen as an inheritanc

Yesterday briefly introduced the use of SQLAlchemy, but did not be able to relate to its most exciting ORM part, today I will briefly explain, of course, mainly to explain the content of the official document, because it is learning notes, there may be a simplification or understanding of the part, do not do authoritative basis. When we start using ORM, a configurable structure can be used to describe our database tables, and the classes we define later will be mapped to those tables. Of course

This article mainly explains some of mapping's related configuration and need to pay attention to the place, said mapping everyone may feel somewhat puzzled, in fact, I can generally understand elasticsearch as an RDBMS (relational database, such as MySQL), then index The equivalent of a database instance, type can be understood as a table, so that mapping can be understood as the structure of the table and

C + + Primer (Fifth edition) learning Note _8_ Standard Template Library _map mapping containerThe element data of a map mapping container consists of a key value and a mapping data, which has a relationship of one by one mappings between the key value and the mapping data.The data structure of the map

" : { "type":"string" } } } } }}That's not what we want.As soon as the mapping is set, it cannot be modified. So when you experiment again, you need to delete the index test$ curl-xdelete localhost:9200/test {"acknowledged":True}Then set the default mapping for test:$ curl-xput localhost:9200'{"mappings": {"_default_": {"Properties": {"IP": {"type":

example, in the game. Whether a square is rendered as two triangles or 2000 triangles is irrelevant.Tessellation (curved subdivision) can enhance fidelity only when new triangles are used to describe new information. When a displacement map (left) is applied to a plane, the resulting surface (right) displays the height information encoded in the displacement map. The simplest and most popular way to use a new triangle is the technology called Dis

slightest fidelity. For example, in a game, it doesn't matter whether a square is rendered as two triangles or 2000 triangles. Tessellation (surface subdivision) can increase fidelity only when new triangles are used to describe the new information. When a displacement map (left) is applied to a plane, the resulting surface (right) displays the height information encoded in the displacement map. The simplest and most popular way to use a new tria

(varStoragemodelinchstoragemodels) {Viewmodel.number=Storagemodel.name; Viewmodel.name=Storagemodel.name; Viewmodel.hiredate=storagemodel.hiredate; Viewmodel.job=Storagemodel.job; Viewmodel.department=storagemodel.department; Viewmodel.salary=storagemodel.salary; //.... } }If the properties of an object are more than one, then we have to write a long list of assignment statements, which is not a clever way to show. The purpose of saying so much is to throw a question. W

This article was reproduced from: http://hessian.cn/p/144.htmlGo Keyboard mapping in LinuxOriginal address: http://www.linuxidc.com/Linux/2011-04/35197.htmFor English, the alphabet keys on the keyboard correspond directly to the letters in the English alphabet, but for non-English languages, the situation is not the same. For example, the "ß" letter in German does not have a direct key and it corresponds, so that Linux provides "keyboard

The following mappings are often used in projects WillHttp://yyjcw.com/a.aspx?name=llinzziMapped toHttp://yyjcw.com/llinzziThere are 2 problems to solve firstThe first is to support wildcard mapping URL mapping is asp.net2.0 new features, do not support wildcardsThen the Nbear NBear.Web.Modules.UrlRewriteRules is used to map wildcard characters. Note: In addition to manually editing this file, you can a

List mapping tableA list is an element that a Java collection stores in a sequence and allows repeating elements. Users of this interface can accurately control the insertion of each element in the list. Users can access elements through their integer index and search for elements in the list. More formally, lists generally allow for elements E1 and E2, making E1.equals (E2), which typically allow multiple null elements if they allow null elements. T

of the IBATIS framework is its sqlmap configuration file, Sqlmap the core of the configuration file is the Statement statement including Ciud. IBATIS gets all the Statement execution statements by parsing the Sqlmap configuration file, and forms the Parametermap, Resultmap two objects that are used to process the parameters and the SQL objects that are parsed and handed to the database for processing. This eliminates the connection to the database, and a SQL execution condition is already in pl

The basic principle of a one-to-many correlation mapping and a multi-pair association map implementation is the same, with one end of a foreign key pointing at one end of the foreign key, and the main difference being the difference between the maintenance side.The difference between them is that they maintain different relationships:A one-to-many association mapping refers to the data at the end of the loa

ElasticSearch Index API Mapping, elasticsearchapiElasticSearch NEST Client operation Index Var indexName = "twitter "; Var deleteIndexResponse = client. DeleteIndex (indexName );Var createIndexResponse = client. CreateIndex (indexName );Var getIndexResponse = client. GetIndex (indexName );Var indexExistsResponse = client. IndexExists (indexName );Var openIndexResponse = client. OpenIndex (indexName );Var closeIndexResponse = client. CloseIndex (index

: data binding. Disadvantage: the client must obtain data through a set. There is no type, the instantiation overhead is large, and the scheduling performance is low.D. Advantages of Typed Dataset be: the type can be checked. Disadvantage: it can only be inherited from dataset, which is inconvenient to deploy, poor scalability, high instantiation overhead, and low Scheduling Performance.E. Custom be advantages: Performance Tuning,CodeIt is more readable. You can use a custom object class to defi

Employeetype identification column. As shown in Listing 2-24.　　　　　code Listing 2-24. Onmodelcreating methods in the overriding context protected override void onmodelcreating (Dbmodelbuilder modelBuilder) { base . Onmodelcreating (ModelBuilder); modelbuilder.entity (). Map employeetype ). HasValue (1 " employeetype ). HasValue (2 Note: Non-shared properties (for example: salary and wage) must be nullable types.PrincipleIn the table per hierarchy (usually abbrevi