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Recently, I had the idea of building a reusable multi-threaded framework and tried to implement it. 1. Thread Management The thread pool is essential. For the sake of development time, glib's thread pool API is used as the underlying layer for

1. How does hibernate connect to the database? The configuration class uses the XML Parser of dom4j to set the XML parsing environment. Then, these environment attributes are used to produce sessionfactory. Then session is produced. 2. How does

@ Component: Mark a common spring Bean class @ Controller: Mark A Controller component class @ Service: Mark a business logic component class @ Repository: Mark a DaO component class The Convention is to change the first letter of the bean class

Hbm2java automatically generates Java source files based on the ing File 　　 Hbm2ddl automatically generates database schema Based on the ing file. 　　 XDoclet generates a ing File Based on the Java source file marked with XDoclet 　　 Middlegen

Environment: Eclipse 3.2m3 (http://www.eclipse.org) HibernateTools-3.1.0.beta2 (http://www.hibernate.org/255.html) Plug-in installation don't have to say it. 1. Create the cfg file. CTRL + n to bring out the following form.Select the hibernate

1. Concept of Team ManagementWhat is team management? A simple example: if a car sand stone falls down from the top of the building, the impact on the ground is not very big, if a whole vehicle has been solidified into a whole block of concrete from

■ Question 1: if there is a restaurant near your home, which is expensive and difficult to eat, and the table is still crawling around, will you come over and over again because it is very close and convenient? A: You will definitely say that this

MFC provides a variety of synchronization objects. The following describes the four most common types: Critical section ccriticalsection Event cevent Mutex Semaphores csemaphore This section describes the critical section. The procedure for using

Store is a storage container that provides record objects for ext devices. Its behavior and attributes are similar to data tables. Method: do not list inherited methodsStore (Object config)Constructor. config is defined {Autoload: Boolean/object, //

We know that in spring2.0, there are two types of beans except singleton and prototype. By default, three types of beans are added: request, session, and global session. The added beans are mainly used in Web applications. This article does not want

1. View UUIDLinux @ Linux-desktop :~ $ Sudo blkid # view the uuid of the disk partition[Sudo] password for Linux:/Dev/sda1: UUID = "f6cc0f08cc0ec33b" type = "NTFS"/Dev/sda5: UUID = "e250ef0650eedff1" type = "NTFS"/Dev/sda6: UUID = "30bc0207bc01c7f4"

From: http://stark-summer.iteye.com/blog/840712 Based on annotation: Package com. Stark. hibernate. model; Import java. util. hashset;Import java. util. Set; Import javax. Persistence. cascadetype;Import javax. Persistence. entity;Import javax.

Level 1 cache: Session cache. When the program calls the SAVE (), upadte (), saveorupdate (), get (), load (), and list () that calls the query interface (), iterator (), filter (). If the object does not exist in the session cache, Hibernate will

The concept of a transaction: The work of a transaction value in a unit, which is either completed or not completed. ACID properties of transactions: atomicity, consistency, isolation, and Durability Simple understanding: 1. either completed or not

Document directory Connection timeout In highly concurrent network programming, if the socket timeout is not controlled, the program will die very hard. Here, the timeout time must be controlled in three parts: Connection timeout, read timeout,

Inheritance relationship 1. One data table for each subclass XML: Contains attributes of the subclass and parent class in the HBM. xml file of the subclass. Anno: parent class @ mappedsuperclass 2. One data table for each class XML: is used in the

Trylock is a good choice when non-blocking locks are required, but some problems are encountered during use: You need to use pthread_mutex_errorcheck_np to define an error lock, but it cannot be compiled anyway. Even if-d_gnu_source is added

The POP3 command code is as follows:Command Parameter status description------------------------------------------User Username recognizes that if this command is successful with the following PASS Command, status conversion will occur.Pass password

Server (acceptor) Program: 1. Create a socket) 2. Bind the socket to a local address and port (BIND) 3. Data to be received (recvfrom) 4. Disable socket. Client (sender) Program 1. Create a socket) 2. Send data (sendto) to the server) 3. Close the

# Include // load the header file # Include // load the standard input/output header file # Pragma comment (Lib, "ws2_32.lib ") Void main () { Word wversionrequested ;// Wsadata; Int err; Wversionrequested = makeword (1.1); // socket Err =