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ArticleDirectory
I. Opening
Ii. Summary
Iii. Outline
Iv. Introduction to singleton Mode
V. Related application scenarios
Vi. Summary
VII. Series progress
8. next announcement
I. Opening
In fact, I did not intend to
In Series I, I analyzed the architecture design of petshop and mentioned the concept of hierarchy. Starting from this section, I will perform
Code Level Analysis for a more detailed and in-depth understanding. In petshop 4.0, some new features of
Recently I accidentally discovered an interception implementation when I flipped through the DLL file at hand. This framework is much simpler than the currently popular AOP framework, but better reflects it. net.
Interception in. Net unity2.0 is
The two constructors of sqlhelper. executenonquery have differences in return values.
If sqlhelper. executenonquerystring (connectionstring, string spname, Params object [] parametervalues) is executed, the return value is always unavailable.
If
Make a cache cleanup function on the website (that is, force cache expiration before the cache expires), and use httpruntime in some places in the program. cache, while the interaction with the database uses the cache mechanism provided by
Ii. Database Access design at the petshop data access layer
Series 1 analyzes the architecture design of petshop and mentions the concept of hierarchy. Starting from this section, code-level analysis will be performed on each layer in order to gain
Today, I carefully read a friend in the garden's article titled "A ray of sunshine: DDD (domain-driven design) how to focus on domain model (domain model) to deal with specific business scenarios." (Http://www.cnblogs.com/xishuai/p/3800656.html)
From: http://www.ibm.com/developerworks/cn/java/j-arrays/#3
Array reflection
If, for some reason, you are not sure whether the parameter or object is an array, you can retrieveClassObject and ask it.ClassClassisArray()The method will tell you. Once
The intention of using the single-piece mode is to ensure that a class has only one instance and provide a global access point to it.
Defining a single piece as a global or static object depends on automatic initialization and cannot fully implement
Java generic function runtime type check
A generic function that stores and reads data is defined in a data persistence process. However, a type conversion error occurs during running and the type does not match. The error location is not the load
The lock keyword can be used to ensure that a block of code finishes running without being interrupted by another thread. It can define a piece of code as a mutex (critical section), where the mutex only allows one thread to go into execution at a
One, lock definitionThe lock keyword can be used to ensure that a block of code finishes running without being interrupted by another thread. It can define a piece of code as a mutex (critical section), where the mutex only allows one thread to go
First to introduce what is the design pattern, design patterns from the construction industry for reference, and then slowly developed into today's appearance.Design pattern is the most effective way to solve the problem , is a set of repeated use,
TLS (thread Local Storage) solves the mutex problem of multi-threaded access to critical resources by allocating more memory, that is, each thread has its own critical resource object, so there is no access violation, and no lock mechanism control
Global variables for PHP learning are slightly different from those for C: In C, global variables automatically take effect in functions unless they are overwritten by local variables. This may cause some problems. some may accidentally change a
An event is actually to expose a process of an object to an external user-defined function through a delegate (delegate, that is, a function pointer. C # You can use multicast delegation, but generally you only need to use unicast.
The event must
2. application_start and application_end methods in the global. asax file of the oixtesite Project
View the global. asax file of the oxitesite project and find its implementationCodeIn the oxiteapplication class of the oxite project. Oxitesite is
In this chapter we will discuss the effect of modifying the monitor on synchronization.1. Do not modify the monitor, sync thePackage com.ray.deepintothread.ch02.topic_24;/** * * @author Raylee * */public class Synchofstaticinnerclass {public stat IC
Roles of synchronized and synchronized
I. Synchronization Method
public synchronized void methodAAA(){ //….}
The lock is the object that calls this synchronization method.
Test:A. if you do not use this keyword to modify the method, the two
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